View source for Unit PlatformARMv7

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=== Description ===
----

'''Ultibo Platform interface unit for ARMv7'''

The ARMv7 does not support the SWP/SWPB instructions for syncronisation (Lock/Mutex/Semaphore etc) unless enabled.

On ARMv7 Unaligned memory access is always enabled.

On ARMv7 the Extended Page Table format is always enabled.

For usage of barriers (DMB/DSB/ISB) after cache maintenance operations see: ARM.Reference_Manual_1.pdf - Appendix G Barrier Litmus Tests

=== Constants ===
----


<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 page tables shift''' <code> ARMV7_PAGE_TABLES_* </code></div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_PAGE_TABLES_SHIFT = 10;</code>
| style="width: 50%;"|&nbsp;
|-
|}
</div></div>
<br /> 
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<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C0 main Id''' <code> ARMV7_CP15_C0_MAINID_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C0_MAINID_IMPLEMENTOR_MASK = ($FF shl 24);</code>
| style="width: 50%;"|&nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_VARIANT_MASK = ($F shl 20);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_MASK = ($F shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_MASK = ($FFF shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_REVISION_MASK = ($F shl 0);</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_IMPLEMENTOR_ARM = ($41 shl 24);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_IMPLEMENTOR_DEC = ($44 shl 24);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_IMPLEMENTOR_FREESCALE = ($4D shl 24);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_IMPLEMENTOR_QUALCOMM = ($51 shl 24);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_IMPLEMENTOR_MARVELL = ($56 shl 24);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_IMPLEMENTOR_INTEL = ($69 shl 24);</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_ARMV4 = ($1 shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_ARMV4T = ($2 shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_ARMV5 = ($3 shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_ARMV5T = ($4 shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_ARMV5TE = ($5 shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_ARMV5TEJ = ($6 shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_ARMV6 = ($7 shl 16);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_ARCHITECTURE_CPUID = ($F shl 16);</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A5 = ($C05 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A7 = ($C07 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A8 = ($C08 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A9 = ($C09 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A15 = ($C0F shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A17 = ($C0E shl 4);</code>
| &nbsp;
|-
|colspan="2"|''The following are ARMv8 part numbers, included here to allow ARMv7 code on ARMv8 in 32bit mode''
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A53 = ($D03 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A57 = ($D07 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MAINID_PARTNUMBER_CORTEX_A72 = ($D08 shl 4);</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C0 multiprocessor affinity''' <code> ARMV7_CP15_C0_MPID_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C0_MPID_MPE = (1 shl 31);</code>
| style="width: 50%;"|&nbsp;
|-
| <code>ARMV7_CP15_C0_MPID_U_UNIPROCESSOR = (1 shl 30);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MPID_U_MULTIPROCESSOR = (0 shl 30);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MPID_CLUSTERID_MASK = ($F shl 8);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_MPID_CPUID_MASK = (3 shl 0);</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
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<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C0 cache size Id''' <code> ARMV7_CP15_C0_CCSID_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C0_CCSID_WT = (1 shl 31);</code>
| Indicates whether the cache level supports Write-Through
|-
| <code>ARMV7_CP15_C0_CCSID_WB = (1 shl 30);</code>
| Indicates whether the cache level supports Write-Back
|-
| <code>ARMV7_CP15_C0_CCSID_RA = (1 shl 29);</code>
| Indicates whether the cache level supports Read-Allocation
|-
| <code>ARMV7_CP15_C0_CCSID_WA = (1 shl 28);</code>
| Indicates whether the cache level supports Write-Allocation
|-
| <code>ARMV7_CP15_C0_CCSID_NUMSETS_MASK = ($7FFF shl 13);</code>
| (Number of sets in cache) - 1, therefore a value of 0 indicates 1 set in the cache. The number of sets does not have to be a power of 2.
|-
| <code>ARMV7_CP15_C0_CCSID_NUMWAYS_MASK = ($3FF shl 3);</code>
| (Associativity of cache) - 1, therefore a value of 0 indicates an associativity of 1. The associativity does not have to be a power of 2.
|-
| <code>ARMV7_CP15_C0_CCSID_LINESIZE_MASK = (7 shl 0);</code>
| (Log2(Number of words in cache line)) -2. (eg For a line length of 8 words: Log2(8) = 3, LineSize entry = 1)
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_CCSID_NUMSETS_SHIFT = 13;</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_CCSID_NUMWAYS_SHIFT = 3;</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C0 cache level Id''' <code> ARMV7_CP15_C0_CLID_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C0_CLID_LOUU_MASK = (7 shl 27);</code>
| Level of Unification Uniprocessor for the cache hierarchy
|-
| <code>ARMV7_CP15_C0_CLID_LOC_MASK = (7 shl 24);</code>
| Level of Coherency for the cache hierarchy
|-
| <code>ARMV7_CP15_C0_CLID_LOUIS_MASK = (7 shl 21);</code>
| Level of Unification Inner Shareable for the cache hierarchy
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE7_MASK = (7 shl 18);</code>
| Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE7_NONE = (0 shl 18);</code>
| No cache
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE7_INSTRUCTION = (1 shl 18);</code>
| Instruction cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE7_DATA = (2 shl 18);</code>
| Data cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE7_SEPARATE = (3 shl 18);</code>
| Separate instruction and data caches
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE7_UNIFIED = (4 shl 18);</code>
| Unified cache
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE6_MASK = (7 shl 15);</code>
| Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE6_NONE = (0 shl 15);</code>
| No cache
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE6_INSTRUCTION = (1 shl 15);</code>
| Instruction cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE6_DATA = (2 shl 15);</code>
| Data cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE6_SEPARATE = (3 shl 15);</code>
| Separate instruction and data caches
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE6_UNIFIED = (4 shl 15);</code>
| Unified cache
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE5_MASK = (7 shl 12);</code>
| Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE5_NONE = (0 shl 12);</code>
| No cache
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE5_INSTRUCTION = (1 shl 12);</code>
| Instruction cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE5_DATA = (2 shl 12);</code>
| Data cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE5_SEPARATE = (3 shl 12);</code>
| Separate instruction and data caches
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE5_UNIFIED = (4 shl 12);</code>
| Unified cache
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE4_MASK = (7 shl 9);</code>
| Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE4_NONE = (0 shl 9);</code>
| No cache
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE4_INSTRUCTION = (1 shl 9);</code>
| Instruction cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE4_DATA = (2 shl 9);</code>
| Data cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE4_SEPARATE = (3 shl 9);</code>
| Separate instruction and data caches
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE4_UNIFIED = (4 shl 9);</code>
| Unified cache
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE3_MASK = (7 shl 6);</code>
| Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE3_NONE = (0 shl 6);</code>
| No cache
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE3_INSTRUCTION = (1 shl 6);</code>
| Instruction cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE3_DATA = (2 shl 6);</code>
| Data cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE3_SEPARATE = (3 shl 6);</code>
| Separate instruction and data caches
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE3_UNIFIED = (4 shl 6);</code>
| Unified cache
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE2_MASK = (7 shl 3);</code>
| Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE2_NONE = (0 shl 3);</code>
| No cache
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE2_INSTRUCTION = (1 shl 3);</code>
| Instruction cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE2_DATA = (2 shl 3);</code>
|Data cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE2_SEPARATE = (3 shl 3);</code>
| Separate instruction and data caches
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE2_UNIFIED = (4 shl 3);</code>
| Unified cache
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE1_MASK = (7 shl 0);</code>
| Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy.
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE1_NONE = (0 shl 0);</code>
| No cache
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE1_INSTRUCTION = (1 shl 0);</code>
| Instruction cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE1_DATA = (2 shl 0);</code>
| Data cache only
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE1_SEPARATE = (3 shl 0);</code>
| Separate instruction and data caches
|-
| <code>ARMV7_CP15_C0_CLID_CTYPE1_UNIFIED = (4 shl 0);</code>
| Unified cache
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C0 cache size selection''' <code> ARMV7_CP15_C0_CSSEL_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C0_CSSEL_LEVEL1 = (0 shl 1);</code>
| Cache level of required cache. Permitted values are from 0b000, indicating Level 1 cache, to 0b110 indicating Level 7 cache.
|-
| <code>ARMV7_CP15_C0_CSSEL_LEVEL2 = (1 shl 1);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_CSSEL_LEVEL3 = (2 shl 1);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_CSSEL_LEVEL4 = (3 shl 1);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_CSSEL_LEVEL5 = (4 shl 1);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_CSSEL_LEVEL6 = (5 shl 1);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_CSSEL_LEVEL7 = (6 shl 1);</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C0_CSSEL_DATA = (0 shl 0);</code>
| Instruction not Data bit (0 = Data or unified cache)
|-
| <code>ARMV7_CP15_C0_CSSEL_INSTRUCTION = (1 shl 0);</code>
| Instruction not Data bit (1 = Instruction cache)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C1 control''' <code> ARMV7_CP15_C1_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C1_TE_BIT = (1 shl 30);</code>
| Thumb Exception enable. This bit enabled exceptions to be taken in Thumb state when set to 1 (Default 0).
|-
| <code>ARMV7_CP15_C1_AFE_BIT = (1 shl 29);</code>
| Access Flag Enable bit. This bit enables use of the AP[0] bit in the translation table descriptors as an access flag when set to 1 (Default 0).
|-
| <code>ARMV7_CP15_C1_TRE_BIT = (1 shl 28);</code>
| TEX remap enabled when set to 1 (TEX[2:1] become page table bits for OS) (Default 0).
|-
| <code>ARMV7_CP15_C1_NMFI_BIT = (1 shl 27);</code>
| Non-maskable Fast Interrupts enabled when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_EE_BIT = (1 shl 25);</code>
| CPSR E bit is set to 1 on an exception when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_VE_BIT = (1 shl 24);</code>
| Interrupt vectors are defined by the VIC interface when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_U_BIT = (1 shl 22);</code>
| Unaligned data access support enabled when set to 1 (Always 1 in ARMv7). The processor permits unaligned loads and stores and support for mixed endian data is enabled.
|-
| <code>ARMV7_CP15_C1_FI_BIT = (1 shl 21);</code>
| Low interrupt latency configuration enabled when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_UWXN_BIT = (1 shl 20);</code>
| Unprivileged write permission implies Execute Never (XN) when set to 1 (Default 0)(Cortext-A7 MPCore)
|-
| <code>ARMV7_CP15_C1_WXN_BIT= (1 shl 19);</code>
| Write permission implies Execute Never (XN) when set to 1 (Default 0)(Cortext-A7 MPCore)
|-
| <code>ARMV7_CP15_C1_HA_BIT = (1 shl 17);</code>
| Hardware Access Flag Enable bit. If the implementation provides hardware management of the access flag this bit enables the access flag management (Default 0).
|-
| <code>ARMV7_CP15_C1_RR_BIT = (1 shl 14);</code>
| Predictable cache replacement strategy by round-robin replacement when set to 1 (Default 0).
|-
| <code>ARMV7_CP15_C1_V_BIT = (1 shl 13);</code>
| High exception vectors selected when set to 1, address range = 0xFFFF0000-0xFFFF001C (Default 0).
|-
| <code>ARMV7_CP15_C1_I_BIT = (1 shl 12);</code>
| L1 Instruction Cache enabled when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_Z_BIT = (1 shl 11);</code>
| Branch prediction enabled when set to 1 (Default 0)(Always Enabled on Cortext-A7 MPCore)
|-
| <code>ARMV7_CP15_C1_SW_BIT = (1 shl 10);</code>
| SWP/SWPB Enable bit. This bit enables the use of SWP and SWPB instructions when set to 1 (Default 0).
|-
| <code>ARMV7_CP15_C1_B_BIT = (1 shl 7);</code>
| Big-endian word-invariant memory system when set to 1 (Always 0 in ARMv7)
|-
| <code>ARMV7_CP15_C1_C_BIT = (1 shl 2);</code>
| L1 Data cache enabled when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_A_BIT = (1 shl 1);</code>
| Strict alignment fault checking enabled when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_M_BIT = (1 shl 0);</code>
| MMU enabled when set to 1 (Default 0)
|-
|}
</div></div>
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C1 auxiliary control''' <code> ARMV7_CP15_C1_AUX_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C1_AUX_DDI = (1 shl 28);</code>
| Disable dual issue when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_AUX_DDVM = (1 shl 15);</code>
| Disable Distributed Virtual Memory (DVM) transactions when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_AUX_L1PCTL_0 = (0 shl 13);</code>
| L1 Data prefetch control, Prefetch disabled
|-
| <code>ARMV7_CP15_C1_AUX_L1PCTL_1 = (1 shl 13);</code>
| L1 Data prefetch control, 1 outstanding pre-fetch permitted
|-
| <code>ARMV7_CP15_C1_AUX_L1PCTL_2 = (2 shl 13);</code>
| L1 Data prefetch control, 2 outstanding pre-fetches permitted
|-
| <code>ARMV7_CP15_C1_AUX_L1PCTL_3 = (3 shl 13);</code>
| L1 Data prefetch control, 3 outstanding pre-fetches permitted, this is the reset value (Default)
|-
| <code>ARMV7_CP15_C1_AUX_L1RADIS = (1 shl 12);</code>
| L1 Data Cache read-allocate mode disable when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_AUX_L2RADIS = (1 shl 11);</code>
| L2 Data Cache read-allocate mode disable when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_AUX_DODMBS = (1 shl 10);</code>
| Disable optimized data memory barrier behavior when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_AUX_SMP = (1 shl 6);</code>
| Enables coherent requests to the processor when set to 1 (Default 0). You must ensure this bit is set to 1 before the caches and MMU are enabled, or any cache and TLB maintenance operations are performed.
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_AUX_FW = (1 shl 0);</code>
| Cache and TLB maintenance broadcast enabled when set to 1 (Default 0) (Cortex-A9 Only)
|-
|}
</div></div>
<br /> 
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<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C1 coprocessor access control''' <code> ARMV7_CP15_C1_CP* </code></div>
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{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C1_COPRO_ASEDIS = (1 shl 31);</code>
| Disable Advanced SIMD Functionality when set to 1 (Default 0)
|-
| <code>ARMV7_CP15_C1_COPRO_D32DIS = (1 shl 30);</code>
| Disable use of D16-D31 of the VFP register file when set to 1 (Default 0)
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_CP15_C1_CP0_NONE = (0 shl 0);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP0_SYS = (1 shl 0);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP0_USER = (3 shl 0);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP1_NONE = (0 shl 2);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP1_SYS = (1 shl 2);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP1_USER = (3 shl 2);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP2_NONE = (0 shl 4);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP2_SYS = (1 shl 4);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP2_USER = (3 shl 4);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP3_NONE = (0 shl 6);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP3_SYS = (1 shl 6);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP3_USER = (3 shl 6);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP4_NONE = (0 shl 8);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP4_SYS = (1 shl 8);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP4_USER = (3 shl 8);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP5_NONE = (0 shl 10);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP5_SYS = (1 shl 10);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP5_USER = (3 shl 10);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP6_NONE = (0 shl 12);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP6_SYS = (1 shl 12);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP6_USER = (3 shl 12);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP7_NONE = (0 shl 14);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP7_SYS = (1 shl 14);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP7_USER = (3 shl 14);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP8_NONE = (0 shl 16);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP8_SYS = (1 shl 16);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP8_USER = (3 shl 16);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP9_NONE = (0 shl 18);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP9_SYS = (1 shl 18);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP9_USER = (3 shl 18);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP10_NONE = (0 shl 20);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP10_SYS = (1 shl 20);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP10_USER = (3 shl 20);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP11_NONE = (0 shl 22);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP11_SYS = (1 shl 22);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP11_USER = (3 shl 22);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP12_NONE = (0 shl 24);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP12_SYS = (1 shl 24);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP12_USER = (3 shl 24);</code>
| Privileged and User mode access
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C1_CP13_NONE = (0 shl 26);</code>
| Access denied (Default)
|-
| <code>ARMV7_CP15_C1_CP13_SYS = (1 shl 26);</code>
| Privileged mode access only
|-
| <code>ARMV7_CP15_C1_CP13_USER = (3 shl 26);</code>
| Privileged and User mode access
|-
|colspan="2"|''Coprocessors CP14 (Debug Control) and CP15 (System Control) are not affected by the Coprocessor Access Control Register''
|-
|}
</div></div>
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C1 secure configuration''' <code> ARMV7_CP15_C1_SCR_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C1_SCR_SIF = (1 shl 9);</code>
| Secure Instruction Fetch bit
|-
| <code>ARMV7_CP15_C1_SCR_HCE = (1 shl 8);</code>
| Hyp Call enable. This bit enables the use of HVC instruction from Non-secure PL1 modes.
|-
| <code>ARMV7_CP15_C1_SCR_SCD = (1 shl 7);</code>
| Secure Monitor Call disable. This bit causes the SMC instruction to be UNDEFINED in Non-secure state.
|-
| <code>ARMV7_CP15_C1_SCR_NET = (1 shl 6);</code>
| Not Early Termination. This bit disables early termination of data operations.
|-
| <code>ARMV7_CP15_C1_SCR_AW = (1 shl 5);</code>
| A bit writable. This bit controls whether the A bit in the CPSR can be modified in Non-secure state.
|-
| <code>ARMV7_CP15_C1_SCR_FW = (1 shl 4);</code>
| F bit writable. This bit controls whether the F bit in the CPSR can be modified in Non-secure state.
|-
| <code>ARMV7_CP15_C1_SCR_EA = (1 shl 3);</code>
| External Abort handler. This bit controls which mode takes external aborts.
|-
| <code>ARMV7_CP15_C1_SCR_FIQ = (1 shl 2);</code>
| FIQ handler. This bit controls which mode takes FIQ exceptions.
|-
| <code>ARMV7_CP15_C1_SCR_IRQ = (1 shl 1);</code>
| IRQ handler. This bit controls which mode takes IRQ exceptions.
|-
| <code>ARMV7_CP15_C1_SCR_NS = (1 shl 0);</code>
| Non Secure bit. Except when the processor is in Monitor mode, this bit determines the security state of the processor.
|-
|}
</div></div>
<br /> 
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<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C2 translation table base''' <code> ARMV7_CP15_C2_TTBR_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C2_TTBR_BASE_MASK = $FFFFC000;</code>
| &nbsp;
|-
| <code>ARMV7_CP15_C2_TTBR_NOS = (1 shl 5);</code>
| Not Outer Shareable bit (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C2_TTBR_RGN_OUTER_NONCACHED = (0 shl 3);</code>
| Normal Outer Noncacheable (Default)
|-
| <code>ARMV7_CP15_C2_TTBR_RGN_OUTER_WRITE_ALLOCATE= (1 shl 3);</code>
| Normal Outer Write-back, Write Allocate
|-
| <code>ARMV7_CP15_C2_TTBR_RGN_OUTER_WRITE_THROUGH = (2 shl 3);</code>
| Normal Outer Write-through, No Allocate on Write
|-
| <code>ARMV7_CP15_C2_TTBR_RGN_OUTER_WRITE_BACK = (3 shl 3);</code>
| Normal Outer Write-back, No Allocate on Write
|-
| <code>ARMV7_CP15_C2_TTBR_IMP = (1 shl 2);</code>
| The effect of this bit is IMPLEMENTATION DEFINED
|-
| <code>ARMV7_CP15_C2_TTBR_S = (1 shl 1);</code>
| Shareable bit (0 Non Shareable / 1 Shareable)
|-
| <code>ARMV7_CP15_C2_TTBR_C_INNER_CACHED = (1 shl 0);</code>
| Cacheable bit (0 Inner Non Cacheable / 1 Inner Cacheable) (ARMv7-A base only)
|-
| <code>ARMV7_CP15_C2_TTBR_IRGN_INNER_NONCACHED = (0 shl 6) or (0 shl 0);</code>
| Normal Inner Noncacheable (Default)
|-
| <code>ARMV7_CP15_C2_TTBR_IRGN_INNER_WRITE_ALLOCATE = (1 shl 6) or (0 shl 0);</code>
| Normal Inner Write-Back Write-Allocate Cacheable
|-
| <code>ARMV7_CP15_C2_TTBR_IRGN_INNER_WRITE_THROUGH = (0 shl 6) or (1 shl 0);</code>
| Normal Inner Write-Through Cacheable
|-
| <code>ARMV7_CP15_C2_TTBR_IRGN_INNER_WRITE_BACK = (1 shl 6) or (1 shl 0);</code>
| Normal Inner Write-Back no Write-Allocate Cacheable
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C3 domain access control''' <code> ARMV7_CP15_C3_DOMAIN* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C3_DOMAIN0_NONE = (0 shl 0);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN0_CLIENT = (1 shl 0);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN0_MANAGER = (3 shl 0);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN1_NONE = (0 shl 2);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN1_CLIENT = (1 shl 2);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN1_MANAGER = (3 shl 2);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN2_NONE = (0 shl 4);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN2_CLIENT = (1 shl 4);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN2_MANAGER = (3 shl 4);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN3_NONE = (0 shl 6);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN3_CLIENT = (1 shl 6);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN3_MANAGER = (3 shl 6);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN4_NONE = (0 shl 8);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN4_CLIENT = (1 shl 8);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN4_MANAGER = (3 shl 8);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN5_NONE = (0 shl 10);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN5_CLIENT = (1 shl 10);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN5_MANAGER = (3 shl 10);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN6_NONE = (0 shl 12);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN6_CLIENT = (1 shl 12);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN6_MANAGER = (3 shl 12);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN7_NONE = (0 shl 14);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN7_CLIENT = (1 shl 14);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN7_MANAGER = (3 shl 14);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN8_NONE = (0 shl 16);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN8_CLIENT = (1 shl 16);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN8_MANAGER = (3 shl 16);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN9_NONE = (0 shl 18);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN9_CLIENT = (1 shl 18);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN9_MANAGER = (3 shl 18);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN10_NONE = (0 shl 20);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN10_CLIENT = (1 shl 20);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN10_MANAGER = (3 shl 20);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN11_NONE = (0 shl 22);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN11_CLIENT = (1 shl 22);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN11_MANAGER = (3 shl 22);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN12_NONE = (0 shl 24);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN12_CLIENT = (1 shl 24);</code>
| Client, Accesses are checked against the access permission bits in the TLB entr
|-
| <code>ARMV7_CP15_C3_DOMAIN12_MANAGER = (3 shl 24);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN13_NONE = (0 shl 26);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN13_CLIENT = (1 shl 26);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN13_MANAGER = (3 shl 26);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN14_NONE = (0 shl 28);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN14_CLIENT = (1 shl 28);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN14_MANAGER = (3 shl 28);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C3_DOMAIN15_NONE = (0 shl 30);</code>
| No access, Any access generates a domain fault (Default)
|-
| <code>ARMV7_CP15_C3_DOMAIN15_CLIENT = (1 shl 30);</code>
| Client, Accesses are checked against the access permission bits in the TLB entry
|-
| <code>ARMV7_CP15_C3_DOMAIN15_MANAGER = (3 shl 30);</code>
| Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C10 primary region remap''' <code> ARMV7_CP15_C10_PRRR_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C10_PRRR_NOS7 = (1 shl 31);</code>
| Outer Shareable property mapping for memory attributes 7, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NOS6 = (1 shl 30);</code>
| Outer Shareable property mapping for memory attributes 6, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NOS5 = (1 shl 29);</code>
| Outer Shareable property mapping for memory attributes 5, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NOS4 = (1 shl 28);</code>
| Outer Shareable property mapping for memory attributes 4, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NOS3 = (1 shl 27);</code>
| Outer Shareable property mapping for memory attributes 3, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NOS2 = (1 shl 26);</code>
| Outer Shareable property mapping for memory attributes 2, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NOS1 = (1 shl 25);</code>
| Outer Shareable property mapping for memory attributes 1, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NOS0 = (1 shl 24);</code>
| Outer Shareable property mapping for memory attributes 0, if the region is mapped as Normal Shareable (0 Outer Shareable / 1 Inner Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NS1 = (1 shl 19);</code>
| Mapping of S = 1 attribute for Normal memory (0 Not Sharable / 1 Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_NS0 = (1 shl 18);</code>
| Mapping of S = 0 attribute for Normal memory (0 Not Sharable / 1 Shareable)
|-
| <code>ARMV7_CP15_C10_PRRR_DS1 = (1 shl 17);</code>
| Mapping of S = 1 attribute for Device memory (This field has no significance in the Cortex-A7)
|-
| <code>ARMV7_CP15_C10_PRRR_DS0 = (1 shl 16);</code>
| Mapping of S = 0 attribute for Device memory (This field has no significance in the Cortex-A7)
|-
| <code>ARMV7_CP15_C10_PRRR_TR7_STRONGLY_ORDERED = (0 shl 14);</code>
| Primary TEX mapping for memory attributes 7 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR7_DEVICE = (1 shl 14);</code>
| Primary TEX mapping for memory attributes 7 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR7_NORMAL = (2 shl 14);</code>
| Primary TEX mapping for memory attributes 7 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR6_STRONGLY_ORDERED = (0 shl 12);</code>
| Primary TEX mapping for memory attributes 6 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR6_DEVICE = (1 shl 12);</code>
| Primary TEX mapping for memory attributes 6 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR6_NORMAL = (2 shl 12);</code>
| Primary TEX mapping for memory attributes 6 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR5_STRONGLY_ORDERED = (0 shl 10);</code>
| Primary TEX mapping for memory attributes 5 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR5_DEVICE = (1 shl 10);</code>
| Primary TEX mapping for memory attributes 5 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR5_NORMAL = (2 shl 10);</code>
| Primary TEX mapping for memory attributes 5 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR4_STRONGLY_ORDERED = (0 shl 8);</code>
| Primary TEX mapping for memory attributes 4 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR4_DEVICE = (1 shl 8);</code>
| Primary TEX mapping for memory attributes 4 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR4_NORMAL = (2 shl 8);</code>
| Primary TEX mapping for memory attributes 4 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR3_STRONGLY_ORDERED = (0 shl 6);</code>
| Primary TEX mapping for memory attributes 3 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR3_DEVICE = (1 shl 6);</code>
| Primary TEX mapping for memory attributes 3 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR3_NORMAL = (2 shl 6);</code>
| Primary TEX mapping for memory attributes 3 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR2_STRONGLY_ORDERED = (0 shl 4);</code>
| Primary TEX mapping for memory attributes 2 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR2_DEVICE = (1 shl 4);</code>
| Primary TEX mapping for memory attributes 2 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR2_NORMAL = (2 shl 4);</code>
| Primary TEX mapping for memory attributes 2 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR1_STRONGLY_ORDERED = (0 shl 2);</code>
| Primary TEX mapping for memory attributes 1 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR1_DEVICE = (1 shl 2);</code>
| Primary TEX mapping for memory attributes 1 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR1_NORMAL = (2 shl 2);</code>
| Primary TEX mapping for memory attributes 1 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR0_STRONGLY_ORDERED = (0 shl 0);</code>
| Primary TEX mapping for memory attributes 0 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR0_DEVICE = (1 shl 0);</code>
| Primary TEX mapping for memory attributes 0 (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_PRRR_TR0_NORMAL = (2 shl 0);</code>
| Primary TEX mapping for memory attributes 0 (The value of the TEX[0], C and B bits)
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_CP15_C10_PRRR_MASK = ARMV7_CP15_C10_PRRR_NOS7 or ARMV7_CP15_C10_PRRR_NOS6 or ARMV7_CP15_C10_PRRR_NOS5 or ARMV7_CP15_C10_PRRR_NOS4</code>
| TR0 to TR7 Inner Shareable
|-
|colspan="2"|&nbsp;
|-
| <code>or ARMV7_CP15_C10_PRRR_NOS3 or ARMV7_CP15_C10_PRRR_NOS2 or ARMV7_CP15_C10_PRRR_NOS1 or ARMV7_CP15_C10_PRRR_NOS0</code>
| &nbsp;
|-
|colspan="2"|&nbsp;
|-
| <code>or ARMV7_CP15_C10_PRRR_NS1 or ARMV7_CP15_C10_PRRR_DS1</code>
| S bit controls Shareable for Normal and Device memory
|-
|colspan="2"|&nbsp;
|-
| <code>or ARMV7_CP15_C10_PRRR_TR0_STRONGLY_ORDERED</code>
| TR0 is Strongly Ordered
|-
|colspan="2"|&nbsp;  
|-
| <code>or ARMV7_CP15_C10_PRRR_TR1_NORMAL or ARMV7_CP15_C10_PRRR_TR2_NORMAL or ARMV7_CP15_C10_PRRR_TR3_NORMAL</code>
| TR1/2/3 are Normal
|-
|colspan="2"|&nbsp; 
|-
| <code>or ARMV7_CP15_C10_PRRR_TR4_DEVICE</code>
| TR4 is Device
|-
|colspan="2"|&nbsp;  
|-
| <code>or ARMV7_CP15_C10_PRRR_TR7_NORMAL;</code>
| TR7 is Normal
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C10 normal memory remap''' <code> ARMV7_CP15_C10_NMRR_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C10_NMRR_OR7_NONCACHED = (0 shl 30);</code>
| Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR7_WRITE_ALLOCATE = (1 shl 30);</code>
| Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR7_WRITE_THROUGH = (2 shl 30);</code>
| Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR7_WRITE_BACK = (3 shl 30);</code>
| Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits
|-
| <code>ARMV7_CP15_C10_NMRR_OR6_NONCACHED = (0 shl 28);</code>
| Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR6_WRITE_ALLOCATE = (1 shl 28);</code>
| Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR6_WRITE_THROUGH = (2 shl 28);</code>
| Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR6_WRITE_BACK = (3 shl 28);</code>
| Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR5_NONCACHED = (0 shl 26);</code>
| Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR5_WRITE_ALLOCATE = (1 shl 26);</code>
| Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR5_WRITE_THROUGH = (2 shl 26);</code>
| Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR5_WRITE_BACK = (3 shl 26);</code>
| Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR4_NONCACHED = (0 shl 24);</code>
| Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR4_WRITE_ALLOCATE = (1 shl 24);</code>
| Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR4_WRITE_THROUGH = (2 shl 24);</code>
| Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR4_WRITE_BACK = (3 shl 24);</code>
| Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR3_NONCACHED = (0 shl 22);</code>
| Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR3_WRITE_ALLOCATE = (1 shl 22);</code>
| Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR3_WRITE_THROUGH = (2 shl 22);</code>
| Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR3_WRITE_BACK = (3 shl 22);</code>
| Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR2_NONCACHED = (0 shl 20);</code>
| Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR2_WRITE_ALLOCATE = (1 shl 20);</code>
| Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR2_WRITE_THROUGH = (2 shl 20);</code>
| Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR2_WRITE_BACK = (3 shl 20);</code>
| Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR1_NONCACHED = (0 shl 18);</code>
| Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR1_WRITE_ALLOCATE = (1 shl 18);</code>
| Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR1_WRITE_THROUGH = (2 shl 18);</code>
| Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR1_WRITE_BACK = (3 shl 18);</code>
| Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR0_NONCACHED = (0 shl 16);</code>
| Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR0_WRITE_ALLOCATE = (1 shl 16);</code>
| Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR0_WRITE_THROUGH = (2 shl 16);</code>
| Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_OR0_WRITE_BACK = (3 shl 16);</code>
| Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR7_NONCACHED = (0 shl 14);</code>
| Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR7_WRITE_ALLOCATE = (1 shl 14);</code>
| Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR7_WRITE_THROUGH = (2 shl 14);</code>
| Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR7_WRITE_BACK = (3 shl 14);</code>
| Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR6_NONCACHED = (0 shl 12);</code>
| Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR6_WRITE_ALLOCATE = (1 shl 12);</code>
| Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR6_WRITE_THROUGH = (2 shl 12);</code>
| Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR6_WRITE_BACK = (3 shl 12);</code>
| Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR5_NONCACHED = (0 shl 10);</code>
| Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR5_WRITE_ALLOCATE = (1 shl 10);</code>
| Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR5_WRITE_THROUGH = (2 shl 10);</code>
| Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR5_WRITE_BACK = (3 shl 10);</code>
| Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits
|-
| <code>ARMV7_CP15_C10_NMRR_IR4_NONCACHED = (0 shl 8);</code>
| Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR4_WRITE_ALLOCATE = (1 shl 8);</code>
| Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR4_WRITE_THROUGH = (2 shl 8);</code>
| Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR4_WRITE_BACK = (3 shl 8);</code>
| Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR3_NONCACHED = (0 shl 6);</code>
| Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR3_WRITE_ALLOCATE= (1 shl 6);</code>
| Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR3_WRITE_THROUGH = (2 shl 6);</code>
| Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR3_WRITE_BACK = (3 shl 6);</code>
| Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR2_NONCACHED = (0 shl 4);</code>
| Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR2_WRITE_ALLOCATE = (1 shl 4);</code>
| Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR2_WRITE_THROUGH = (2 shl 4);</code>
| Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR2_WRITE_BACK = (3 shl 4);</code>
| Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR1_NONCACHED = (0 shl 2);</code>
| Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR1_WRITE_ALLOCATE = (1 shl 2);</code>
| Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR1_WRITE_THROUGH = (2 shl 2);</code>
| Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR1_WRITE_BACK = (3 shl 2);</code>
| Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR0_NONCACHED = (0 shl 0);</code>
| Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR0_WRITE_ALLOCATE = (1 shl 0);</code>
| Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR0_WRITE_THROUGH = (2 shl 0);</code>
| Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
| <code>ARMV7_CP15_C10_NMRR_IR0_WRITE_BACK = (3 shl 0);</code>
| Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits)
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_CP15_C10_NMRR_MASK = ARMV7_CP15_C10_NMRR_IR1_NONCACHED or ARMV7_CP15_C10_NMRR_OR1_NONCACHED</code>
| IR1 and OR1 are Non Cached
|-
|colspan="2"|&nbsp;
|-
| <code>or ARMV7_CP15_C10_NMRR_IR2_WRITE_THROUGH or ARMV7_CP15_C10_NMRR_OR2_WRITE_THROUGH</code>
| IR2 and OR2 are Write Through
|-
|colspan="2"|&nbsp;
|-
| <code>or ARMV7_CP15_C10_NMRR_IR3_WRITE_BACK or ARMV7_CP15_C10_NMRR_OR3_WRITE_BACK</code>
| IR3 and OR3 are Write Back
|-
|colspan="2"|&nbsp;
|-
| <code>or ARMV7_CP15_C10_NMRR_IR7_WRITE_ALLOCATE or ARMV7_CP15_C10_NMRR_OR7_WRITE_ALLOCATE;</code>
| IR7 and OR7 are Write Allocate
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C14 generic timer control''' <code> ARMV7_CP15_C14_CNT_CTL_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C14_CNT_CTL_ISTATUS = (1 shl 2);</code>
| The status of the timer (Read Only)(When set the timer condition is asserted)
|-
| <code>ARMV7_CP15_C14_CNT_CTL_IMASK = (1 shl 1);</code>
| Timer output signal mask bit (When set the timer output signal is masked)
|-
| <code>ARMV7_CP15_C14_CNT_CTL_ENABLE = (1 shl 0);</code>
| Enables the timer (When set the timer output signal is enabled)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 CP15 C14 generic timer''' <code> ARMV7_CP15_C14_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CP15_C14_CNTP = 0;</code>
| Physical Timer (Secure or Non Secure depending on the NS bit of the SCR)
|-
| <code>ARMV7_CP15_C14_CNTV = 1;</code>
| Virtual Timer
|-
| <code>ARMV7_CP15_C14_CNTH = 2;</code>
| Hypervisor Timer (Only available from HYP mode)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 floating-point exception''' <code> ARMV7_FPEXC_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_FPEXC_EN = (1 shl 30);</code>
| Floating-point system is enabled and operates normally if set to 1 (Default 0)
|-
| <code>ARMV7_FPEXC_EX = (1 shl 31);</code>
| If EX is set to 0 then only FPSCR and FPEXC need to be preseved on a context switch (Default 0)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor type''' <code> ARMV7_L1D_TYPE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-7 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|See page B3-8 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|Level One Page Table contains 4096 32bit (4 byte) entries for a total size of 16KB
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L1D_TYPE_COARSE = 1;</code>
| The entry points to a 1MB second-level page table. See page 6-40.
|-
| <code>ARMV7_L1D_TYPE_SECTION = 2;</code>
| The entry points to a either a 1MB Section of memory or a 16MB Supersection of memory
|-
| <code>ARMV7_L1D_TYPE_SUPERSECTION = 2;</code>
| Bit[18] of the descriptor selects between a Section and a Supersection
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor flag''' <code> ARMV7_L1D_FLAG_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-9 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L1D_FLAG_COARSE_NS = (1 shl 3);</code>
| NS (Non Secure) Attribute bit to enable the support of TrustZone
|-
| <code>ARMV7_L1D_FLAG_SECTION_NS = (1 shl 19);</code>
| NS (Non Secure) Attribute bit to enable the support of TrustZone
|-
| <code>ARMV7_L1D_FLAG_SUPERSECTION = (1 shl 18);</code>
| The descriptor is a 16MB Supersection instead of a 1MB Section (Section Only)
|-
| <code>ARMV7_L1D_FLAG_NOT_GLOBAL = (1 shl 17);</code>
| The Not-Global (nG) bit, determines if the translation is marked as global (0), or process-specific (1) (Section Only)
|-
| <code>ARMV7_L1D_FLAG_SHARED = (1 shl 16);</code>
| The Shared (S) bit, determines if the translation is for Non-Shared (0), or Shared (1) memory. This only applies to Normal memory regions.
Device memory can be Shared or Non-Shared as determined by the TEX bits and the C and B bits (Section Only).
|-
| <code>ARMV7_L1D_FLAG_AP2 = (1 shl 15);</code>
| The access permissions extension (AP2) bit, provides an extra access permission bit (Section Only)
|-
| <code>ARMV7_L1D_FLAG_IMP = (1 shl 9);</code>
| The meaning of this bit is IMPLEMENTATION DEFINED
|-
| <code>ARMV7_L1D_FLAG_XN = (1 shl 4);</code>
| The Execute-Never (XN) bit, determines if the region is Executable (0) or Not-executable(1) (Section Only)
|-
| <code>ARMV7_L1D_FLAG_C = (1 shl 3);</code>
| Cacheable (C) bit (Section Only)
|-
| <code>ARMV7_L1D_FLAG_B = (1 shl 2);</code>
| Bufferable (B) bit (Section Only)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor mask''' <code> ARMV7_L1D_*_MASK </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-8 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L1D_COARSE_BASE_MASK = $FFFFFC00;</code>
| &nbsp;
|-
| <code>ARMV7_L1D_SECTION_BASE_MASK = $FFF00000;</code>
| &nbsp;
|-
| <code>ARMV7_L1D_SUPERSECTION_BASE_MASK = $FF000000;</code>
| &nbsp;
|-
| <code>ARMV7_L1D_DOMAIN_MASK = ($F shl 5);</code>
| Security Domain of the Descriptor
|-
| <code>ARMV7_L1D_TEX_MASK = (7 shl 12);</code>
| Type extension field bits (Section Only)
|-
| <code>ARMV7_L1D_AP_MASK = (3 shl 10);</code>
| Access permission bits (Section Only)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor TEX value''' <code> ARMV7_L1D_TEX* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual (Section Only)
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L1D_TEX0 = (0 shl 12);</code>
| &nbsp;
|-
| <code>ARMV7_L1D_TEX1 = (1 shl 12);</code>
| &nbsp;
|-
| <code>ARMV7_L1D_TEX2 = (2 shl 12);</code>
| &nbsp;
|-
| <code>ARMV7_L1D_TEX4 = (4 shl 12);</code>
| Only used for Cacheable memory values
|-
| <code>ARMV7_L1D_TEX5 = (5 shl 12);</code>
| Only used for Cacheable memory values
|-
| <code>ARMV7_L1D_TEX6 = (6 shl 12);</code>
| Only used for Cacheable memory values
|-
| <code>ARMV7_L1D_TEX7 = (7 shl 12);</code>
| Only used for Cacheable memory values
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor AP value''' <code> ARMV7_L1D_AP* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-28 of the ARMv7 Architecture Reference Manual (Section Only)
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L1D_AP0 = (0 shl 10);</code>
| style="width: 50%;"|&nbsp;
|-
| <code>ARMV7_L1D_AP1 = (1 shl 10);</code>
| &nbsp;
|-
| <code>ARMV7_L1D_AP2 = (2 shl 10);</code>
| &nbsp;
|-
| <code>ARMV7_L1D_AP3 = (3 shl 10);</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor permission value''' <code> ARMV7_L1D_ACCESS_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-28 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|This is not the full set of permissions as Ultibo always runs in priviledged mode
|-
|colspan="2"|The XN bit can also be applied to control whether memory regions are executable or not
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L1D_ACCESS_NONE = ARMV7_L1D_AP0;</code>
| No Access for both Privileged and Unprivileged code
|-
| <code>ARMV7_L1D_ACCESS_READONLY = ARMV7_L1D_FLAG_AP2 or ARMV7_L1D_AP3;</code>
| Read-Only for both Privileged and Unprivileged code
|-
| <code>ARMV7_L1D_ACCESS_READWRITE = ARMV7_L1D_AP3;</code>
| Read-Write for both Privileged and Unprivileged code
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor cache value''' <code> ARMV7_L1D_CACHE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L1D_CACHE_STRONGLY_ORDERED = ARMV7_L1D_TEX0;</code>
| Strongly Ordered. (Always Shared)
|-
| <code>ARMV7_L1D_CACHE_SHARED_DEVICE = ARMV7_L1D_TEX0 or ARMV7_L1D_FLAG_B;</code>
| Device. (Always Shared)
|-
| <code>ARMV7_L1D_CACHE_NORMAL_WRITE_THROUGH = ARMV7_L1D_TEX0 or ARMV7_L1D_FLAG_C;</code>
| Normal. Write Through (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_NORMAL_WRITE_BACK = ARMV7_L1D_TEX0 or ARMV7_L1D_FLAG_C or ARMV7_L1D_FLAG_B;</code>
| Normal. Write Back (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_NORMAL_NONCACHED = ARMV7_L1D_TEX1;</code>
| Normal. Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_NORMAL_WRITE_ALLOCATE = ARMV7_L1D_TEX1 or ARMV7_L1D_FLAG_C or ARMV7_L1D_FLAG_B;</code>
| Normal. Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_NONSHARED_DEVICE = ARMV7_L1D_TEX2;</code>
| Device. (Not Shared)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor cacheable memory value''' <code> ARMV7_L1D_CACHE_CACHEABLE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|Cacheable Memory
|-
|colspan="2"|See page B3-34 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_OUTER_NONCACHED = ARMV7_L1D_TEX4;</code>
| Outer Normal Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_OUTER_WRITE_ALLOCATE = ARMV7_L1D_TEX5;</code>
| Outer Normal Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_OUTER_WRITE_THROUGH = ARMV7_L1D_TEX6;</code>
| Outer Normal Write Through (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_OUTER_WRITE_BACK = ARMV7_L1D_TEX7;</code>
| Outer Normal Write Back (Shared if S bit set)
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_INNER_NONCACHED = ARMV7_L1D_TEX4;</code>
| Inner Normal Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_INNER_WRITE_ALLOCATE = ARMV7_L1D_TEX4 or ARMV7_L1D_FLAG_B;</code>
| Inner Normal Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_INNER_WRITE_THROUGH = ARMV7_L1D_TEX4 or ARMV7_L1D_FLAG_C;</code>
| Inner Normal Write Through (Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_CACHEABLE_INNER_WRITE_BACK = ARMV7_L1D_TEX4 or ARMV7_L1D_FLAG_C or ARMV7_L1D_FLAG_B;</code>
| Inner Normal Write Back (Shared if S bit set)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level one descriptor cache TEX remap value''' <code> ARMV7_L1D_CACHE_REMAP_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|TEX Remap Enabled
|-
|colspan="2"|See page B3-34 of the ARMv7 Architecture Reference Manual (These values are from Linux)
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L1D_CACHE_REMAP_STRONGLY_ORDERED = ARMV7_L1D_TEX0;</code>
| TR0 - Strongly Ordered
|-
| <code>ARMV7_L1D_CACHE_REMAP_NORMAL_NONCACHED = ARMV7_L1D_TEX0 or ARMV7_L1D_FLAG_B;</code>
| TR1 - Normal Noncacheable (Inner Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_REMAP_NORMAL_WRITE_THROUGH = ARMV7_L1D_TEX0 or ARMV7_L1D_FLAG_C;</code>
| TR2 - Normal Write Through (Inner Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_REMAP_NORMAL_WRITE_BACK = ARMV7_L1D_TEX0 or ARMV7_L1D_FLAG_C or ARMV7_L1D_FLAG_B;</code>
| TR3 - Normal Write Back (Inner Shared if S bit set)
|-
| <code>ARMV7_L1D_CACHE_REMAP_DEVICE = ARMV7_L1D_TEX1;</code>
| TR4 - Device
|-
| <code>ARMV7_L1D_CACHE_REMAP_UNUSED = ARMV7_L1D_TEX1 or ARMV7_L1D_FLAG_B;</code>
| TR5 - Not currently used
|-
| <code>ARMV7_L1D_CACHE_REMAP_RESERVED = ARMV7_L1D_TEX1 or ARMV7_L1D_FLAG_C;</code>
| TR6 - Implementation Defined
|-
| <code>ARMV7_L1D_CACHE_REMAP_NORMAL_WRITE_ALLOCATE = ARMV7_L1D_TEX1 or ARMV7_L1D_FLAG_C or ARMV7_L1D_FLAG_B;</code>
| TR7 - Normal Write Allocate (Inner Shared if S bit set)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor type''' <code> ARMV7_L2D_TYPE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-10 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|Level Two Page Table contains 256 32bit (4 byte) entries for a total size of 1KB
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L2D_TYPE_LARGE = 1;</code>
| The entry points to a 64KB Large page in memory
|-
| <code>ARMV7_L2D_TYPE_SMALL = 2;</code>
| The entry points to a 4KB Extended small page in memory. Bit[0] of the entry is the XN (Execute Never) bit for the entry.
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor flag''' <code> ARMV7_L2D_FLAG_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-10 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_FLAG_LARGE_XN = (1 shl 15);</code>
| The Execute-Never (XN) bit, determines if the region is Executable (0) or Not-executable(1)
|-
| <code>ARMV7_L2D_FLAG_SMALL_XN = (1 shl 0);</code>
| The Execute-Never (XN) bit, determines if the region is Executable (0) or Not-executable(1)
|-
| <code>ARMV7_L2D_FLAG_NOT_GLOBAL = (1 shl 11);</code>
| The Not-Global (nG) bit, determines if the translation is marked as global (0), or process-specific (1)
|-
| <code>ARMV7_L2D_FLAG_SHARED = (1 shl 10);</code>
| The Shared (S) bit, determines if the translation is for Non-Shared (0), or Shared (1) memory. This only applies to Normal memory regions.
Device memory can be Shared or Non-Shared as determined by the TEX bits and the C and B bits.
|-
| <code>ARMV7_L2D_FLAG_AP2 = (1 shl 9);</code>
| The access permissions extension (APX) bit, provides an extra access permission bit.
|-
| <code>ARMV7_L2D_FLAG_C = (1 shl 3);</code>
| Cacheable (C) bit
|-
| <code>ARMV7_L2D_FLAG_B = (1 shl 2);</code>
| Bufferable (B) bit
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor mask''' <code>  ARMV7_L2D_*_MASK </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-10 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_LARGE_BASE_MASK = $FFFF0000;</code>
| &nbsp;
|-
| <code>ARMV7_L2D_SMALL_BASE_MASK = $FFFFF000;</code>
| &nbsp;
|-
| <code>ARMV7_L2D_LARGE_TEX_MASK = (7 shl 12);</code>
| Type extension field bits
|-
| <code>ARMV7_L2D_SMALL_TEX_MASK = (7 shl 6);</code>
| Type extension field bits
|-
| <code>ARMV7_L2D_AP_MASK = (3 shl 4);</code>
| Access permission bits
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor large TEX value''' <code> ARMV7_L2D_LARGE_TEX* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L2D_LARGE_TEX0 = (0 shl 12);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_LARGE_TEX1 = (1 shl 12);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_LARGE_TEX2 = (2 shl 12);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_LARGE_TEX4 = (4 shl 12);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_LARGE_TEX5 = (5 shl 12);</code>
| Only used for Cacheable memory values
|-
| <code>ARMV7_L2D_LARGE_TEX6 = (6 shl 12);</code>
| Only used for Cacheable memory values
|-
| <code>ARMV7_L2D_LARGE_TEX7 = (7 shl 12);</code>
| Only used for Cacheable memory values
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor small TEX value''' <code> ARMV7_L2D_SMALL_TEX* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_SMALL_TEX0 = (0 shl 6);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_SMALL_TEX1 = (1 shl 6);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_SMALL_TEX2 = (2 shl 6);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_SMALL_TEX4 = (4 shl 6);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_SMALL_TEX5 = (5 shl 6);</code>
| Only used for Cacheable memory values
|-
| <code>ARMV7_L2D_SMALL_TEX6 = (6 shl 6);</code>
| Only used for Cacheable memory values
|-
| <code>ARMV7_L2D_SMALL_TEX7 = (7 shl 6);</code>
| Only used for Cacheable memory values
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor AP value''' <code> ARMV7_L2D_AP* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-28 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_AP0 = (0 shl 4);</code>
| style="width: 50%;"|&nbsp;
|-
| <code>ARMV7_L2D_AP1 = (1 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_AP2 = (2 shl 4);</code>
| &nbsp;
|-
| <code>ARMV7_L2D_AP3 = (3 shl 4);</code>
| &nbsp;
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor permission value''' <code> ARMV7_L2D_ACCESS_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-28 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|This is not the full set of permissions as Ultibo always runs in priviledged mode
|-
|colspan="2"|The XN bit can also be applied to control whether memory regions are executable or not
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_ACCESS_NONE = ARMV7_L2D_AP0;</code>
| No Access for both Privileged and Unprivileged code
|-
| <code>ARMV7_L2D_ACCESS_READONLY = ARMV7_L2D_FLAG_AP2 or ARMV7_L2D_AP3;</code>
| Read-Only for both Privileged and Unprivileged code
|-
| <code>ARMV7_L2D_ACCESS_READWRITE = ARMV7_L2D_AP3;</code>
| Read-Write for both Privileged and Unprivileged code
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor large cache value''' <code> ARMV7_L2D_LARGE_CACHE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L2D_LARGE_CACHE_STRONGLY_ORDERED = ARMV7_L2D_LARGE_TEX0;</code>
| Strongly Ordered. (Always Shared)
|-
| <code>ARMV7_L2D_LARGE_CACHE_SHARED_DEVICE = ARMV7_L2D_LARGE_TEX0 or ARMV7_L2D_FLAG_B;</code>
| Device. (Always Shared)
|-
| <code>ARMV7_L2D_LARGE_CACHE_NORMAL_WRITE_THROUGH = ARMV7_L2D_LARGE_TEX0 or ARMV7_L2D_FLAG_C;</code>
| Normal. Write Through (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_NORMAL_WRITE_BACK = ARMV7_L2D_LARGE_TEX0 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| Normal. Write Back (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_NORMAL_NONCACHED = ARMV7_L2D_LARGE_TEX1;</code>
| Normal. Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_NORMAL_WRITE_ALLOCATE = ARMV7_L2D_LARGE_TEX1 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| Normal. Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_NONSHARED_DEVICE = ARMV7_L2D_LARGE_TEX2;</code>
| Device. (Not Shared)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor large cacheable memory value''' <code> ARMV7_L2D_LARGE_CACHE_CACHEABLE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|Cacheable Memory
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_OUTER_NONCACHED = ARMV7_L2D_LARGE_TEX4;</code>
| Outer Normal Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_OUTER_WRITE_ALLOCATE = ARMV7_L2D_LARGE_TEX5;</code>
| Outer Normal Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_OUTER_WRITE_THROUGH = ARMV7_L2D_LARGE_TEX6;</code>
| Outer Normal Write Through (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_OUTER_WRITE_BACK = ARMV7_L2D_LARGE_TEX7;</code>
| Outer Normal Write Back (Shared if S bit set)
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_INNER_NONCACHED = ARMV7_L2D_LARGE_TEX4;</code>
| Inner Normal Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_INNER_WRITE_ALLOCATE = ARMV7_L2D_LARGE_TEX4 or ARMV7_L2D_FLAG_B;</code>
| Inner Normal Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_INNER_WRITE_THROUGH = ARMV7_L2D_LARGE_TEX4 or ARMV7_L2D_FLAG_C;</code>
| Inner Normal Write Through (Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_CACHEABLE_INNER_WRITE_BACK = ARMV7_L2D_LARGE_TEX4 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| Inner Normal Write Back (Shared if S bit set)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor large cache TEX remap value''' <code> ARMV7_L2D_LARGE_CACHE_REMAP_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|TEX Remap Enabled
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual (These values are from Linux)
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_STRONGLY_ORDERED = ARMV7_L2D_LARGE_TEX0;</code>
| TR0 - Strongly Ordered
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_NORMAL_NONCACHED = ARMV7_L2D_LARGE_TEX0 or ARMV7_L2D_FLAG_B;</code>
| TR1 - Normal Noncacheable (Inner Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_NORMAL_WRITE_THROUGH = ARMV7_L2D_LARGE_TEX0 or ARMV7_L2D_FLAG_C;</code>
| TR2 - Normal Write Through (Inner Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_NORMAL_WRITE_BACK = ARMV7_L2D_LARGE_TEX0 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| TR3 - Normal Write Back (Inner Shared if S bit set)
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_DEVICE = ARMV7_L2D_LARGE_TEX1;</code>
| TR4 - Device
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_UNUSED = ARMV7_L2D_LARGE_TEX1 or ARMV7_L2D_FLAG_B;</code>
| TR5 - Not currently used
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_RESERVED = ARMV7_L2D_LARGE_TEX1 or ARMV7_L2D_FLAG_C;</code>
| TR6 - Implementation Defined
|-
| <code>ARMV7_L2D_LARGE_CACHE_REMAP_NORMAL_WRITE_ALLOCATE = ARMV7_L2D_LARGE_TEX1 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| TR7 - Normal Write Allocate (Inner Shared if S bit set)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor small cache value''' <code>  ARMV7_L2D_SMALL_CACHE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L2D_SMALL_CACHE_STRONGLY_ORDERED = ARMV7_L2D_SMALL_TEX0;</code>
| Strongly Ordered. (Always Shared)
|-
| <code>ARMV7_L2D_SMALL_CACHE_SHARED_DEVICE = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_B;</code>
| Device. (Always Shared)
|-
| <code>ARMV7_L2D_SMALL_CACHE_SHARED_DEVICE = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_B;</code>
| Device. (Always Shared)
|-
| <code>ARMV7_L2D_SMALL_CACHE_NORMAL_WRITE_THROUGH = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_C;</code>
| Normal. Write Through (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_NORMAL_WRITE_BACK = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| Normal. Write Back (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_NORMAL_WRITE_BACK = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| Normal. Write Back (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_NORMAL_NONCACHED = ARMV7_L2D_SMALL_TEX1;</code>
| Normal. Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_NORMAL_WRITE_ALLOCATE = ARMV7_L2D_SMALL_TEX1 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| Normal. Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_NONSHARED_DEVICE = ARMV7_L2D_SMALL_TEX2;</code>
| Device. (Not Shared)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor small cacheable memory value''' <code> ARMV7_L2D_SMALL_CACHE_CACHEABLE_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|Cacheable Memory
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual
|-
|colspan="2"|&nbsp; 
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_OUTER_NONCACHED = ARMV7_L2D_SMALL_TEX4;</code>
| Outer Normal Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_OUTER_WRITE_ALLOCATE = ARMV7_L2D_SMALL_TEX5;</code>
| Outer Normal Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_OUTER_WRITE_THROUGH = ARMV7_L2D_SMALL_TEX6;</code>
| Outer Normal Write Through (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_OUTER_WRITE_BACK = ARMV7_L2D_SMALL_TEX7;</code>
| Outer Normal Write Back (Shared if S bit set)
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_INNER_NONCACHED = ARMV7_L2D_SMALL_TEX4;</code>
| Inner Normal Noncacheable (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_INNER_WRITE_ALLOCATE = ARMV7_L2D_SMALL_TEX4 or ARMV7_L2D_FLAG_B;</code>
| Inner Normal Write Allocate (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_INNER_WRITE_THROUGH = ARMV7_L2D_SMALL_TEX4 or ARMV7_L2D_FLAG_C;</code>
| Inner Normal Write Through (Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_CACHEABLE_INNER_WRITE_BACK = ARMV7_L2D_SMALL_TEX4 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| Inner Normal Write Back (Shared if S bit set)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 level two descriptor small cache TEX remap value''' <code> ARMV7_L2D_SMALL_CACHE_REMAP_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
|colspan="2"|TEX Remap Enabled
|-
|colspan="2"|See page B3-32 of the ARMv7 Architecture Reference Manual (These values are from Linux)
|-
|colspan="2"|&nbsp;
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_STRONGLY_ORDERED = ARMV7_L2D_SMALL_TEX0;</code>
| TR0 - Strongly Ordered
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_NORMAL_NONCACHED = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_B;</code>
| TR1 - Normal Noncacheable (Inner Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_NORMAL_WRITE_THROUGH = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_C;</code>
| TR2 - Normal Write Through (Inner Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_NORMAL_WRITE_BACK = ARMV7_L2D_SMALL_TEX0 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| TR3 - Normal Write Back (Inner Shared if S bit set)
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_DEVICE = ARMV7_L2D_SMALL_TEX1;</code>
| TR4 - Device
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_UNUSED = ARMV7_L2D_SMALL_TEX1 or ARMV7_L2D_FLAG_B;</code>
| TR5 - Not currently used
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_RESERVED = ARMV7_L2D_SMALL_TEX1 or ARMV7_L2D_FLAG_C;</code>
| TR6 - Implementation Defined
|-
| <code>ARMV7_L2D_SMALL_CACHE_REMAP_NORMAL_WRITE_ALLOCATE = ARMV7_L2D_SMALL_TEX1 or ARMV7_L2D_FLAG_C or ARMV7_L2D_FLAG_B;</code>
| TR7 - Normal Write Allocate (Inner Shared if S bit set)
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
<div style="font-size: 14px; padding-left: 12px;">'''ARMv7 specific constants''' <code> ARMV7_* </code></div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
| <code>ARMV7_CONTEXT_LENGTH = 50;</code>
| Length of ARM context switch record in 32 bit words (includes fpexc, fpscr, d0-d15, r0-r12, lr, pc, cpsr)
|-
|}
</div></div>
<br />

=== Type definitions ===
----


'''ARMv7 page table initialization'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>TARMv7PageTableInit = procedure;</code>
| style="width: 40%;"|
|-
|}

'''ARMv7 dispatch IRQ'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>TARMv7DispatchIRQ = function(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle;</code>
| style="width: 40%;"|
|-
|}
 
'''ARMv7 dispatch FIQ'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>TARMv7DispatchFIQ = function(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle; </code>
| style="width: 40%;"|
|-
|}

'''ARMv7 dispatch SWI'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>TARMv7DispatchSWI = function(CPUID:LongWord; Thread:TThreadHandle; Request:PSystemCallRequest):TThreadHandle; </code>
| style="width: 40%;"|
|-
|}
<br />

=== Public variables ===
----


'''ARMv7 specific variables'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>ARMv7Initialized:Boolean;</code>
| style="width: 65%;"|
|-
|}
 
'''Page table handlers'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>ARMv7PageTableInitHandler:TARMv7PageTableInit;</code>
| style="width: 65%;"|
|-
|}
 
'''IRQ handlers'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>ARMv7DispatchIRQHandler:TARMv7DispatchIRQ;</code>
| style="width: 65%;"|
|-
|}
 
'''FIQ handlers'''
 
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>ARMv7DispatchFIQHandler:TARMv7DispatchFIQ;</code>
| style="width: 65%;"|
|-
|}
 
'''SWI handlers'''

{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
|-
| <code>ARMv7DispatchSWIHandler:TARMv7DispatchSWI;</code>
| style="width: 65%;"|
|-
|}
<br />

=== Function declarations ===
----


'''Initialization functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7Init;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />

'''ARMv7 platform functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CPUInit; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7FPUInit; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7MMUInit;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CacheInit; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7TimerInit(Frequency:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7PageTableInit;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Initialize the Hardware Page Tables before enabling the MMU</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7SystemCall(Number:LongWord; Param1,Param2,Param3:PtrUInt);</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetMode:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetState:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetCurrent:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetMainID:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetMultiprocessorID:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetModel:LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetRevision:LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CPUGetDescription:String;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7FPUGetState:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L1CacheGetType:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L1DataCacheGetSize:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L1DataCacheGetLineSize:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br /> 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L1InstructionCacheGetSize:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L1InstructionCacheGetLineSize:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L2CacheGetType:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L2CacheGetSize:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7L2CacheGetLineSize:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7Halt; assembler; nostackframe; public name'_haltproc';</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' The purpose of the Wait For Interrupt operation is to put the processor in to a low power state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See Standby mode on page A8-810 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7Pause; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' The purpose of the Wait For Interrupt operation is to put the processor in to a low power state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See Standby mode on page A8-810 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7SendEvent; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See Page A8-316 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7WaitForEvent; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See Page A8-808 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7WaitForInterrupt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' The purpose of the Wait For Interrupt operation is to put the processor in to a low power state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See Standby mode on page A8-810 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7DataMemoryBarrier; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a data memory barrier operation using the c7 (Cache Operations) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page A8-90 of the ARMv7 Architecture Reference Manual
Note that this is also available in the FPC RTL as ReadBarrier/WriteBarrier See: \source\rtl\arm\arm.inc
<br />Implementation is exactly the same for either.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7DataSynchronizationBarrier; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a data synchronization barrier operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page A8-92 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InstructionMemoryBarrier; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a instruction synchronization barrier operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page A8-102 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateTLB; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate entire TLB operation using the c8 (TLB Operations) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-138 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateDataTLB; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate data TLB (Unlocked/Data) operation using the c8 (TLB Operations) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-138 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateInstructionTLB; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate instruction TLB (Unlocked/Instruction) operation using the c8 (TLB Operations) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-138 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateCache; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate both caches operation using the c7 (Cache Operations) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CleanDataCache; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a clean entire data cache operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateDataCache; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate entire data cache operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateL1DataCache; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate entire L1 data cache operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CleanAndInvalidateDataCache; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a clean and invalidate entire data cache operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateInstructionCache; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate entire instruction cache operation using the c7 (Cache Operations) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CleanDataCacheRange(Address,Size:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a clean data cache by MVA to PoC operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateDataCacheRange(Address,Size:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate data cache by MVA to PoC operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CleanAndInvalidateDataCacheRange(Address,Size:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a clean and invalidate data cache by MVA to PoC operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateInstructionCacheRange(Address,Size:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate instruction caches by MVA to PoU operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CleanDataCacheSetWay(SetWay:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a clean data cache line by set/way operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''SetWay'''
| Set/Way/Level will be passed in r0
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7InvalidateDataCacheSetWay(SetWay:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an invalidate data cache line by set/way operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''SetWay'''
| Set/Way/Level will be passed in r0
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7CleanAndInvalidateDataCacheSetWay(SetWay:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a clean and invalidate data cache line by set/way operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''SetWay'''
| Set/Way/Level will be passed in r0
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7FlushPrefetchBuffer; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an Instruction Synchronization Barrier operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page A8-102 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7FlushBranchTargetCache; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a Flush Entire Branch Target Cache operation</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page B3-127 of the ARMv7 Architecture Reference Manual
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7ContextSwitch(OldStack,NewStack:Pointer; NewThread:TThreadHandle);  assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a context switch from one thread to another as a result of a thread yielding, sleeping or waiting</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''OldStack'''
| The address to save the stack pointer to for the current thread (Passed in r0)
|-
! '''NewStack'''
| The address to restore the stack pointer from for the new thread (Passed in r1)
|-
! '''NewThread'''
| The handle of the new thread to switch to (Passed in r2)
|-
! '''Note'''
| At the point of the actual context switch (str sp / ldr sp) the thread stacks will look like this:
<br />(See: ARMv7ThreadSetupStack for additional information)
<br />
<br />(Base "Highest Address" of Stack)
<br />.
<br />.
<br />.
<br />.
<br />cpsr  <- The current program status register value to load on return from the context switch
<br />lr/pc <- The address to return to from the context switch
<br />lr    <- The lr value prior to the context switch
<br />r12   <- 
<br />r11   <- 
<br />r10   <- 
<br />r9    <- 
<br />r8    <- 
<br />r7    <- 
<br />r6    <- The value of these registers prior to the context switch 
<br />r5    <-  
<br />r4    <-  
<br />r3    <-  
<br />r2    <- 
<br />r1    <- 
<br />r0    <-
<br />        
<br />d15   <- 
<br />d14   <- 
<br />d13   <- 
<br />d12   <- 
<br />d11   <- 
<br />d10   <- 
<br />d9    <- 
<br />d8    <- The value of these floating point registers prior to the context switch
<br />d7    <-
<br />d6    <- 
<br />d5    <- 
<br />d4    <- 
<br />d3    <- 
<br />d2    <- 
<br />d1    <- 
<br />d0    <- 
<br />        
<br />fpscr <- The floating point FPSCR register
<br />fpexc <- The floating point FPEXC register (Current StackPointer points to here)
<br />.
<br />.
<br />.
<br />.
<br />(Top "Lowest Address" of Stack)
<br />             
<br />This form of context switch uses r12 to save the cpsr value (and RFE to restore it). Because this context switch is called from a routine which will have saved the value of r12 (which is caller save in the ARM ABI) then we do not need to save the original value of r12.
<br />        
<br />The context switch will be performed from SYS mode to SYS mode, the cpsr value will include the control bits (Mode and IRQ/FIQ state) but not the flags values. Again the ARM ABI does not require that the flags be saved by the callee and so the caller would have accounted for any needed flags before calling. If the thread to be resumed was interrupted by an IRQ or FIQ then the cpsr will also contain the flags etc as they were at the point of interrupt. We do not need to account for the state bits in the cpsr since all operations are performed in ARM mode at present.
<br />        
<br />The main requirement of this routine is to ensure that the context record on the stack matches exactly that which is created on an interrupt and also that created by ThreadSetupStack for a new thread. If this is correct then the next context switch for any given thread can be either by a call to reschedule or by an interrupt. Equally a new thread can be first run from a context switch that resulted from either a call to reschedule or an interrupt.
<br />        
<br />Note that this routine could use:
<br />        
<br />pop (lr)
<br />pop (r12)
<br />msr cpsr_c, r12
<br />mov pc, lr
<br />         
<br />To return but that would mess up the value of r12, lr and the cpsr flags etc if the thread being resumed was interrupted by an IRQ, FIQ or SWI. The use of RFE here allows for exactly the same behaviour no matter which way the context record is saved and restored.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7ContextSwitchIRQ(OldStack,NewStack:Pointer; NewThread:TThreadHandle);  assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a context switch from one thread to another as a result of an interrupt request (IRQ)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''OldStack'''
| The address to save the stack pointer to for the current thread (Passed in r0)
|-
! '''NewStack'''
| The address to restore the stack pointer from for the new thread (Passed in r1)
|-
! '''NewThread'''
| The handle of the new thread to switch to (Passed in r2)
|-
! '''Note'''
| At the point of the actual context switch (str sp / ldr sp) the thread stacks will look like this:
<br />(See: ARMv7ThreadSetupStack for additional information)
<br />
<br />(Base "Highest Address" of Stack)
<br />.
<br />.
<br />.
<br />.
<br />cpsr  <- The current program status register value to load on return from the context switch
<br />lr/pc <- The address to return to from the context switch
<br />lr    <- The lr value prior to the context switch
<br />r12   <- 
<br />r11   <- 
<br />r10   <- 
<br />r9    <- 
<br />r8    <- 
<br />r7    <- 
<br />r6    <- The value of these registers prior to the context switch 
<br />r5    <-  
<br />r4    <-  
<br />r3    <-  
<br />r2    <- 
<br />r1    <- 
<br />r0    <-
<br />        
<br />d15   <- 
<br />d14   <- 
<br />d13   <- 
<br />d12   <- 
<br />d11   <- 
<br />d10   <- 
<br />d9    <- 
<br />d8    <- The value of these floating point registers prior to the context switch
<br />d7    <- 
<br />d6    <- 
<br />d5    <-  
<br />d4    <- 
<br />d3    <- 
<br />d2    <- 
<br />d1    <- 
<br />d0    <- 
<br />        
<br />fpscr <- The floating point FPSCR register
<br />fpexc <- The floating point FPEXC register (Current StackPointer points to here)
<br />.
<br />.
<br />.
<br />.
<br />(Top "Lowest Address" of Stack)
<br />             
<br />This form of context switch relies on the IRQ handler to save the necessary registers including the lr, cpsr and other general registers from the point at which the thread was interrupted. The thread to be resumed may have been saved by a previous IRQ or by a call to the standard context switch from SchedulerReschule or it may be a new thread to be run for the first time. All of these result in the same context record on the stack and therefore can be resumed the same way.
<br />        
<br />The context switch will be performed by switching to SYS mode, exchanging the stack pointers and then returning to IRQ mode.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7ContextSwitchFIQ(OldStack,NewStack:Pointer; NewThread:TThreadHandle); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a context switch from one thread to another as a result of a fast interrupt request (FIQ)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''OldStack'''
| The address to save the stack pointer to for the current thread (Passed in r0)
|-
! '''NewStack'''
| The address to restore the stack pointer from for the new thread (Passed in r1)
|-
! '''NewThread'''
| The handle of the new thread to switch to (Passed in r2)
|-
! '''Note'''
| At the point of the actual context switch (str sp / ldr sp) the thread stacks will look like this:
<br />(See: ARMv7ThreadSetupStack for additional information)
<br />
<br />(Base "Highest Address" of Stack)
<br />.
<br />.
<br />.
<br />.
<br />cpsr  <- The current program status register value to load on return from the context switch
<br />lr/pc <- The address to return to from the context switch
<br />lr    <- The lr value prior to the context switch
<br />r12   <- 
<br />r11   <- 
<br />r10   <- 
<br />r9    <- 
<br />r8    <- 
<br />r7    <- 
<br />r6    <- The value of these registers prior to the context switch 
<br />r5    <-  
<br />r4    <-  
<br />r3    <-  
<br />r2    <- 
<br />r1    <- 
<br />r0    <- 
<br />        
<br />d15   <- 
<br />d14   <- 
<br />d13   <- 
<br />d12   <- 
<br />d11   <- 
<br />d10   <- 
<br />d9    <- 
<br />d8    <- The value of these floating point registers prior to the context switch
<br />d7    <- 
<br />d6    <- 
<br />d5    <- 
<br />d4    <- 
<br />d3    <- 
<br />d2    <- 
<br />d1    <- 
<br />d0    <- 
<br />        
<br />fpscr <- The floating point FPSCR register
<br />fpexc <- The floating point FPEXC register (Current StackPointer points to here)
<br />.
<br />.
<br />.
<br />.
<br />(Top "Lowest Address" of Stack)
<br />             
<br />This form of context switch relies on the FIQ handler to save the necessary registers including the lr, cpsr and other general registers from the point at which the thread was interrupted. The thread to be resumed may have been saved by a previous FIQ or by a call to the standard context switch from SchedulerReschule or it may be a new thread to be run for the first time. All of these result in the same context record on the stack and therefore can be resumed the same way.
<br />        
<br />The context switch will be performed by switching to SYS mode, exchanging the stack pointers and then returning to FIQ mode.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7ContextSwitchSWI(OldStack,NewStack:Pointer; NewThread:TThreadHandle); assembler; nostackframe; </pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform a context switch from one thread to another as a result of a software interrupt (SWI)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''OldStack'''
| The address to save the stack pointer to for the current thread (Passed in r0)
|-
! '''NewStack'''
| The address to restore the stack pointer from for the new thread (Passed in r1)
|-
! '''NewThread'''
| The handle of the new thread to switch to (Passed in r2)
|-
! '''Note'''
| At the point of the actual context switch (str sp / ldr sp) the thread stacks will look like this:
<br />(See: ARMv7ThreadSetupStack for additional information)
<br />
<br />(Base "Highest Address" of Stack)
<br />.
<br />.
<br />.
<br />.
<br />cpsr  <- The current program status register value to load on return from the context switch
<br />lr/pc <- The address to return to from the context switch
<br />lr    <- The lr value prior to the context switch
<br />r12   <- 
<br />r11   <- 
<br />r10   <- 
<br />r9    <- 
<br />r8    <- 
<br />r7    <- 
<br />r6    <- The value of these registers prior to the context switch 
<br />r5    <-  
<br />r4    <-  
<br />r3    <-  
<br />r2    <- 
<br />r1    <- 
<br />r0    <- 
<br />        
<br />d15   <- 
<br />d14   <- 
<br />d13   <- 
<br />d12   <- 
<br />d11   <- 
<br />d10   <- 
<br />d9    <- 
<br />d8    <- The value of these floating point registers prior to the context switch
<br />d7    <-
<br />d6    <- 
<br />d5    <- 
<br />d4    <- 
<br />d3    <- 
<br />d2    <- 
<br />d1    <- 
<br />d0    <- 
<br />        
<br />fpscr <- The floating point FPSCR register
<br />fpexc <- The floating point FPEXC register (Current StackPointer points to here)
<br />.
<br />.
<br />.
<br />.
<br />(Top "Lowest Address" of Stack)
<br />             
<br />This form of context switch relies on the SWI handler to save the necessary registers including the lr, cpsr and other general registers from the point at which the thread was interrupted. The thread to be resumed may have been saved by a previous SWI or by a call to the standard context switch from SchedulerReschule or it may be a new thread to be run for the first time. All of these result in the same context record on the stack and therefore can be resumed the same way.
<br />        
<br />The context switch will be performed by switching to SYS mode, exchanging the stack pointers and then returning to SWI (SVC) mode.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedOr(var Target:LongInt; Value:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic OR operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedXor(var Target:LongInt; Value:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic XOR operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedAnd(var Target:LongInt; Value:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic AND operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedDecrement(var Target:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic decrement operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedIncrement(var Target:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic increment operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedExchange(var Target:LongInt; Source:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic exchange operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedAddExchange(var Target:LongInt; Source:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic add and exchange operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7InterlockedCompareExchange(var Target:LongInt; Source,Compare:LongInt):LongInt; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Perform an atomic compare and exchange operation using LDREX/STREX</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7PageTableGetEntry(Address:PtrUInt):TPageTableEntry;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get and Decode the entry in the Page Table that corresponds to the supplied virtual address</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7PageTableSetEntry(const Entry:TPageTableEntry):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Encode and Set an entry in the Page Table that corresponds to the supplied virtual address</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7VectorTableGetEntry(Number:LongWord):PtrUInt;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Return the address of the specified vector table entry number</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7VectorTableSetEntry(Number:LongWord; Address:PtrUInt):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the supplied address as the value of the specified vector table entry number</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7FirstBitSet(Value:LongWord):LongWord; assembler; nostackframe; </pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| ARM arm states that CLZ is supported for ARMv5 and above
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7CountLeadingZeros(Value:LongWord):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Equivalent of the GCC Builtin function __builtin_clz</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| ARM arm states that CLZ is supported for ARMv5 and above
|-
|}
</div></div>
<br />

'''ARMv7 thread functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7PrimaryInit; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinLock(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Lock an existing Spin entry</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinUnlock(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Unlock an existing Spin entry</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinLockIRQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Lock an existing Spin entry, disable IRQ and save the previous IRQ state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinUnlockIRQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Unlock an existing Spin entry and restore the previous IRQ state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinLockFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Lock an existing Spin entry, disable FIQ and save the previous FIQ state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinUnlockFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Unlock an existing Spin entry and restore the previous FIQ state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinLockIRQFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Lock an existing Spin entry, disable IRQ and FIQ and save the previous IRQ/FIQ state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinUnlockIRQFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Unlock an existing Spin entry and restore the previous IRQ/FIQ state</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Spin'''
| Pointer to the Spin entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinCheckIRQ(Spin:PSpinEntry):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Return'''
| True if the mask would enable IRQ on restore, False if it would not
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinCheckFIQ(Spin:PSpinEntry):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Return'''
| True if the mask would enable FIQ on restore, False if it would not
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinExchangeIRQ(Spin1,Spin2:PSpinEntry):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SpinExchangeFIQ(Spin1,Spin2:PSpinEntry):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7MutexLock(Mutex:PMutexEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Lock an existing Mutex entry</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Mutex'''
| Pointer to the Mutex entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7MutexUnlock(Mutex:PMutexEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Unlock an existing Mutex entry</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Mutex'''
| Pointer to the Mutex entry to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7MutexTryLock(Mutex:PMutexEntry):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Try to lock an existing Mutex entry</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Mutex'''
| Pointer to the Mutex entry to try to lock (Passed in R0)
|-
! '''Return'''
| ERROR_SUCCESS if completed, ERROR_LOCKED if already locked or another error code on failure (Returned in R0)
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7ThreadGetCurrent:TThreadHandle; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current thread id from the c13 (Thread and process ID) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7ThreadSetCurrent(Thread:TThreadHandle):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the current thread id in the c13 (Thread and process ID) register of system control coprocessor CP15</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7ThreadSetupStack(StackBase:Pointer; StartProc:TThreadStart; ReturnProc:TThreadEnd; Parameter:Pointer):Pointer;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set up the context record and arguments on the stack for a new thread</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''StackBase'''
| Pointer to the base (highest address) of the allocated stack (as returned by ThreadAllocateStack
|-
! '''StartProc'''
| The procedure the thread will start executing when resumed
|-
! '''ReturnProc'''
| The procedure the thread will return to on exit
|-
! '''Return'''
| Pointer to the starting address of the stack, which will be the Stack Pointer on the first context switch
|-
! '''Note'''
| At the point of a context switch the thread stack will look like this:
<br />(Base "Highest Address" of Stack)
<br />.
<br />.
<br />.
<br />.
<br />cpsr  <- The current program status register value to load on return from the context switch
<br />(On Interrupt: Includes the flags and control bits for the interrupted thread)
<br />(On Yield: Includes the control bits only for the yielded thread)
<br />(On Create: Includes the control bits only for the new thread)
<br />lr/pc <- The address to return to from the context switch
<br />(On Interrupt: The location the thread was at before interrupt)
<br />(On Yield: The location to return to in SchedulerReschedule)
<br />(On Create: The location of StartProc for the new thread)
<br />        
<br />lr    <- The lr value prior to the context switch
<br />(On Interrupt: The value of lr before the thread was interrupted)
<br />(On Yield: The location to return to in SchedulerReschedule)
<br />(On Create: The location of ReturnProc for the new thread)
<br />        
<br />r12   <- 
<br />r11   <- 
<br />r10   <- 
<br />r9    <- 
<br />r8    <- 
<br />r7    <- 
<br />r6    <- The value of these registers prior to the context switch 
<br />r5    <-  (On Interrupt: The values before the thread was interrupted)
<br />r4    <-  (On Yield: The values on return to SchedulerReschedule) 
<br />r3    <-  (On Create: The values on entry to StartProc as set by ThreadSetupStack)
<br />r2    <- 
<br />r1    <- 
<br />r0    <- 
<br />        
<br />d15   <- 
<br />d14   <- 
<br />d13   <- 
<br />d12   <- 
<br />d11   <- 
<br />d10   <- 
<br />d9    <- 
<br />d8    <- The value of these floating point registers prior to the context switch
<br />d7    <-  (On Interrupt: The values before the thread was interrupted) 
<br />d6    <-  (On Yield: The values on return to SchedulerReschedule)  
<br />d5    <-  (On Create: The values on entry to StartProc as set by ThreadSetupStack) 
<br />d4    <- 
<br />d3    <- 
<br />d2    <- 
<br />d1    <- 
<br />d0    <- 
<br />        
<br />fpscr <- The floating point FPSCR register
<br />fpexc <- The floating point FPEXC register (Current StackPointer points to here)
<br />.
<br />.
<br />.
<br />.
<br />(Top "Lowest Address" of Stack)
<br />               
<br />On exit from a standard context switch as performed by SchedulerReschedule the first value (Highest Address) of lr is used by the RFE (Return From Exception) instruction to load the pc which also loads the saved cpsr value.
<br />        
<br />On exit from an IRQ or FIQ context switch as performed by SchedulerSwitch the first value (Highest Address) of lr is used by the interrupt handler to return from the interrupt.
<br />		
<br />A standard context switch uses r12 to save the cpsr value (and RFE to restore it). Because the standard context switch is called from a routine which will have saved the value of r12 (which is caller save in the ARM ABI) then we do not need to save the original value of r12.
<br />        
<br />An IRQ or FIQ context switch uses the SRS (Store Return State) and RFE (Return From Exception) instructions to save and restore the cpsr value from the spsr value of either IRQ or FIQ mode.
|-
|}
</div></div>
<br />

'''ARMv7 IRQ functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7DispatchIRQ(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle; inline;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />

'''ARMv7 FIQ functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7DispatchFIQ(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle; inline;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />

'''ARMv7 SWI functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7DispatchSWI(CPUID:LongWord; Thread:TThreadHandle; Request:PSystemCallRequest):TThreadHandle; inline;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />

'''ARMv7 interrupt functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7ResetHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7UndefinedInstructionHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Handle an undefined instruction exception</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| This routine is registered as the vector for undefined instruction exception in the vector table loaded during startup
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7SoftwareInterruptHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Handle a software interrupt (SWI) from a system call (SVC)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| This routine is registered as the vector for SWI requests in the vector table loaded during startup. When the processor executes an SVC it switches to SWI mode, stores the address of the next instruction in the SWI mode link register (lr_svc) and saves the current program status register into the SWI mode saved program status register (spsr_svc).
<br />The SWI handler first saves the SWI mode lr and spsr (which represent the location and state to return to) onto the SYS mode stack using the srsdb (Store Return State Decrement Before) instruction.
<br />        
<br />The SWI handler then switches to SYS mode and saves all the neccessary registers for the return to the interrupted thread before switching back to SWI mode in order to process the software interrupt. Because we arrive here from an interrupt the thread that was executing has no opportunity to save registers and will be unaware on return that it was interrupted. For this reason we must save all of the general purpose registers (r0 to r12) as well as the SYS mode link register (lr). We do not save the stack pointer (r13) because we use it to store the other registers and will return it to the correct value before we return from the SWI handler. The program counter (r15) does not need to be saved as it now points to this code.
<br />        
<br />The SystemCall function should pass the parameters of the call as follows:
<br />        
<br />R0 - System Call Number (eg SYSTEM_CALL_CONTEXT_SWITCH)
<br />R1 - Parameter 1
<br />R2 - Parameter 2
<br />R3 - Parameter 3
<br />          
<br />To process the software interrupt
<br />??????
<br />        
<br />To return from the software interrupt
<br />??????
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7PrefetchAbortHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Handle a prefetch abort exception</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| This routine is registered as the vector for prefetch abort exception in the vector table loaded during startup
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7DataAbortHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Handle a data abort exception</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| This routine is registered as the vector for data abort exception in the vector table loaded during startup
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7ReservedHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7IRQHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Handle an interrupt request IRQ from an interrupt source</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| This routine is registered as the vector for IRQ requests in the vector table loaded during startup.
<br />At the end of each instruction the processor checks the IRQ line and if triggered it will lookup the vector in the vector table and jump to the routine listed.
<br />        
<br />When the processor receives an IRQ it switches to IRQ mode, stores the address of the next instruction in the IRQ mode link register (lr_irq) and saves the current program status register into the IRQ mode saved program status register (spsr_irq).
<br />        
<br />The IRQ handler first saves the IRQ mode lr and spsr (which represent the location and state to return to) onto the SYS mode stack using the srsdb (Store Return State Decrement Before) instruction.
<br />        
<br />The IRQ handler then switches to SYS mode and saves all the neccessary registers for the return to the interrupted thread before switching back to IRQ mode in order to process the interrupt request. Because we arrive here from an interrupt the thread that was executing has no opportunity to save registers and will be unaware on return that it was interrupted. For this reason we must save all of the general purpose registers (r0 to r12) as well as the SYS mode link register (lr). We do not save the stack pointer (r13) because we use it to store the other registers and will return it to the correct value before we return from the IRQ handler. The program counter (r15) does not need to be saved as it now points to this code.
<br />        
<br />To process the interrupt request the handler calls the DispatchIRQ function which will dispatch the interrupt to a registered handler for processing. The handler must clear the interrupt source before it returns or the interrupt will simply occur again immediately once reenabled.
<br />        
<br />To return from the interrupt request the handler uses the rfeia (Return From Exception Increment After) instruction which will load the pc and cpsr from the SYS mode stack.
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7FIQHandler; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Handle a fast interrupt request FIQ from an interrupt source</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| This routine is registered as the vector for FIQ requests in the vector table loaded during startup.
<br />At the end of each instruction the processor checks the FIQ line and if triggered it will lookup the vector in the vector table and jump to the routine listed.
<br />        
<br />When the processor receives an FIQ it switches to FIQ mode, stores the address of the next instruction in the FIQ mode link register (lr_fiq) and saves the current program status register into the FIQ mode saved program status register (spsr_fiq).
<br />        
<br />The FIQ handler first checks the spsr to determine if the task being interrupted is a normal thread or an exception or interrupt handler. 
<br />        
<br />The FIQ handler then saves the FIQ mode lr and spsr (which represent the location and state to return to) onto eihter the SYS mode or SVC mode stack using the srsdb (Store Return State Decrement Before) instruction depending on the value of spsr.
<br />        
<br />The FIQ handler switches to SYS or SVC mode and saves all the neccessary registers for the return to the interrupted task before switching back to FIQ mode in order to process the interrupt request. Because we arrive here from an interrupt the task that was executing has no opportunity to save registers and will be unaware on return that it was interrupted. For this reason we must save all of the general purpose registers (r0 to r12) as well as the SYS mode link register (lr). We do not save the stack pointer (r13) because we use it to store the other registers and will return it to the correct value before we return from the FIQ handler. The program counter (r15) does not need to be saved as it now points to this code.
<br />        
<br />To process the fast interrupt request the handler calls the DispatchFIQ function which will dispatch the interrupt to a registered handler for processing. The handler must clear the interrupt source before it returns or the fast interrupt will simply occur again immediately once reenabled.
<br />        
<br />To return from the fast interrupt request the handler uses the rfeia (Return From Exception Increment After) instruction which will load the pc and cpsr from the stack of the current mode (SYS or SVC).
|-
|}
</div></div>
<br />

'''ARMv7 helper functions'''

<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetFPEXC:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetFPSCR:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7StartMMU; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetTimerState(Timer:LongWord):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMv7SetTimerState(Timer,State:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetTimerCount(Timer:LongWord):Int64; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetTimerValue(Timer:LongWord):LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMV7SetTimerValue(Timer,Value:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetTimerCompare(Timer:LongWord):Int64; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">procedure ARMV7SetTimerCompare(Timer,High,Low:LongWord); assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetTimerFrequency:LongWord; assembler; nostackframe;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| None documented
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetPageTableCoarse(Address:PtrUInt):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the descriptor for a Coarse Page Table entry (1MB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SetPageTableCoarse(Address,CoarseAddress:PtrUInt; Flags:Word):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the descriptor for a Coarse Page Table entry (1MB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
Caller must call ARMv7InvalidateTLB after changes if MMU is enabled
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetPageTableLarge(Address:PtrUInt):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the descriptor for a Large Page Table entry (64KB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SetPageTableLarge(Address,PhysicalAddress:PtrUInt; Flags:Word):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the descriptor for a Large Page Table entry (64KB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| Large Page Table descriptors must begin on a 16 longword (64 byte) boundary and be repeated for 16 consecutive longwords
See page ???
<br />Caller must call ARMv7InvalidateTLB after changes if MMU is enabled
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetPageTableSmall(Address:PtrUInt):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the descriptor for a Small Page Table entry (4KB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SetPageTableSmall(Address,PhysicalAddress:PtrUInt; Flags:Word):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the descriptor for a Small Page Table entry (4KB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
Caller must call ARMv7InvalidateTLB after changes if MMU is enabled
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7GetPageTableSection(Address:PtrUInt):LongWord;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the descriptor for a Page Table Section (1MB) or Supersection (16MB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SetPageTableSection(Address,PhysicalAddress:PtrUInt; Flags:LongWord):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the descriptor for a Page Table Section (1MB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| See page ???
Caller must call ARMv7InvalidateTLB after changes if MMU is enabled
|-
|}
</div></div>
<br />
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
<pre style="border: 0; padding-bottom:0px;">function ARMv7SetPageTableSupersection(Address,PhysicalAddress:PtrUInt; Flags:LongWord):Boolean;</pre>
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Set the descriptor for a Page Table Supersection (16MB)</div>
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
{| class="wikitable" style="font-size: 14px; background: white;"
|-
! '''Note'''
| Supersection Page Table descriptors must begin on a 16 longword (64 byte) boundary and be repeated for 16 consecutive longwords
See page ???
<br />Caller must call ARMv7InvalidateTLB after changes if MMU is enabled
|-
|}
</div></div>
<br />

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