CA32_AARCH32 Cortex-A32 (Aarch32) State Current CPU State 1 AARCH32 Core Current State CPU Registers 32 RW unsigned long R0 General purpose register 0 116 R1 General purpose register 1 117 R2 General purpose register 2 118 R3 General purpose register 3 119 R4 General purpose register 4 120 R5 General purpose register 5 121 R6 General purpose register 6 122 R7 General purpose register 7 123 R8 General purpose register 8 189 R9 General purpose register 9 190 R10 General purpose register 10 191 R11 General purpose register 11 192 R12 General purpose register 12 193 R13 SP R13 (SP) Stack pointer (SP) 194 R14 LR R14 (LR/ELR) Link register (LR/ELR) / procedure link register 195 R15 PC R15 (PC) Program counter (PC) 147 R8_USR General purpose register R8 (User Mode) 124 R9_USR General purpose register R9 (User Mode) 125 R10_USR General purpose register R10 (User Mode) 126 R11_USR General purpose register R11 (User Mode) 127 R12_USR General purpose register R12 (User Mode) 128 R13_USR SP_USR Stack pointer (User Mode) 129 R14_USR LR_USR Link register (User Mode) 130 R13_IRQ SP_IRQ Stack pointer (Interrupt Mode) 132 R14_IRQ LR_IRQ Link register (Interrupt Mode) 133 R13_SVC SP_SVC Stack pointer (Supervisor Mode) 134 R14_SVC LR_SVC Link register (Supervisor Mode) 135 R13_ABT SP_ABT Stack pointer (Abort Mode) 136 R14_ABT LR_ABT Link register (Abort Mode) 137 R13_UND SP_UND Stack pointer (Undefined Mode) 138 R14_UND LR_UND Link register (Undefined Mode) 139 R8_FIQ General purpose register R8 (Fast Interrupt Mode) 140 R9_FIQ General purpose register R9 (Fast Interrupt Mode) 141 R10_FIQ General purpose register R10 (Fast Interrupt Mode) 142 R11_FIQ General purpose register R11 (Fast Interrupt Mode) 143 R12_FIQ General purpose register R12 (Fast Interrupt Mode) 144 R13_FIQ SP_FIQ Stack pointer (Fast Interrupt Mode) 145 R14_FIQ LR_FIQ Link register (Fast Interrupt Mode) 146 SP_HYP Stack pointer (Hypervisor Mode) 131 ELR_HYP Exception Link register (Hypervisor Mode) 148 CPSR Current program status register 149 M Mode bits 0 4 F FIQ interrupt mask 6 1 I IRQ interrupt mask 7 1 A SError interrupt mask 8 1 E Data endianess 9 1 GE Greater-than-or-equal flags) 16 4 DIT Data independent timing 21 1 PAN Privileged access never 22 1 SSBS Speculative store bypass 23 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 SPSR_ABT Current program status register (Abort Mode) 150 M Mode bits 0 5 T T32 instruction set state 5 1 F FIQ interrupt mask 6 1 I IRQ interrupt mask 7 1 A SError interrupt mask 8 1 E Data endianess 9 1 IT Low If-then flags (lower side) 10 6 IT High If-then flags (higher side) 25 2 GE Greater-than-or-equal flags) 16 4 IL Illegal execution state 20 1 DIT Data independent timing 21 1 PAN Privileged access never 22 1 SSBS Speculative store bypass 23 1 J Instruction set state 24 1 Q Overflow or saturation flag 27 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 SPSR_SVC Current program status register (Supervisor Mode) 151 M Mode bits 0 5 T T32 instruction set state 5 1 F FIQ interrupt mask 6 1 I IRQ interrupt mask 7 1 A SError interrupt mask 8 1 E Data endianess 9 1 IT Low If-then flags (lower side) 10 6 IT High If-then flags (higher side) 25 2 GE Greater-than-or-equal flags) 16 4 IL Illegal execution state 20 1 DIT Data independent timing 21 1 PAN Privileged access never 22 1 SSBS Speculative store bypass 23 1 J Instruction set state 24 1 Q Overflow or saturation flag 27 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 SPSR_HYP Current program status register (Hypervisor Mode) 152 M Mode bits 0 5 T T32 instruction set state 5 1 F FIQ interrupt mask 6 1 I IRQ interrupt mask 7 1 A SError interrupt mask 8 1 E Data endianess 9 1 IT Low If-then flags (lower side) 10 6 IT High If-then flags (higher side) 25 2 GE Greater-than-or-equal flags) 16 4 IL Illegal execution state 20 1 DIT Data independent timing 21 1 PAN Privileged access never 22 1 SSBS Speculative store bypass 23 1 J Instruction set state 24 1 Q Overflow or saturation flag 27 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 SPSR_FIQ Current program status register (Fast Interrupt Mode) 153 M Mode bits 0 5 T T32 instruction set state 5 1 F FIQ interrupt mask 6 1 I IRQ interrupt mask 7 1 A SError interrupt mask 8 1 E Data endianess 9 1 IT Low If-then flags (lower side) 10 6 IT High If-then flags (higher side) 25 2 GE Greater-than-or-equal flags) 16 4 IL Illegal execution state 20 1 DIT Data independent timing 21 1 PAN Privileged access never 22 1 SSBS Speculative store bypass 23 1 J Instruction set state 24 1 Q Overflow or saturation flag 27 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 SPSR_IRQ Current program status register (Interrupt Mode) 154 M Mode bits 0 5 T T32 instruction set state 5 1 F FIQ interrupt mask 6 1 I IRQ interrupt mask 7 1 A SError interrupt mask 8 1 E Data endianess 9 1 IT Low If-then flags (lower side) 10 6 IT High If-then flags (higher side) 25 2 GE Greater-than-or-equal flags) 16 4 IL Illegal execution state 20 1 DIT Data independent timing 21 1 PAN Privileged access never 22 1 SSBS Speculative store bypass 23 1 J Instruction set state 24 1 Q Overflow or saturation flag 27 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 SPSR_UND Current program status register (Undefined Mode) 155 M Mode bits 0 5 T T32 instruction set state 5 1 F FIQ interrupt mask 6 1 I IRQ interrupt mask 7 1 A SError interrupt mask 8 1 E Data endianess 9 1 IT Low If-then flags (lower side) 10 6 IT High If-then flags (higher side) 25 2 GE Greater-than-or-equal flags) 16 4 IL Illegal execution state 20 1 DIT Data independent timing 21 1 PAN Privileged access never 22 1 SSBS Speculative store bypass 23 1 J Instruction set state 24 1 Q Overflow or saturation flag 27 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 FPU Floating Point Unit Registers FPSCR Floating point status and control register 156 IOC Invalid Operation cumulative FP exception bit 0 1 DZC Divide by zero cumulative FP exception bit 1 1 OFC Overflow cumulative FP exception bit 2 1 UFC Underflow cumulative FP exception bit 3 1 IXC Inexact cumulative FP exception bit 4 1 IDC Input Denormal cumulative FP exception bit 7 1 IOE Invalid Operation FP exception enable 8 1 DZE Divide by Zero FP exception enable 9 1 OFE Overflow FP exception enable 10 1 UFE Underflow FP exception enable 11 1 IXE Inexact FP exception enable 12 1 IDE Input Denormal FP exception enable 15 1 Len Len (AARCH32 only) 16 3 FZ16 Flushing denormalized numbers to zero control bit 19 1 Stride Stride (AARCH32 only) 20 2 RMode Rounding Mode 22 2 FZ Flushing denormalized numbers to zero 24 1 DN Default NaN for NaN propagation 25 1 AHP Alternative half-precision control bit 26 1 QC Cumulative saturation bit 27 1 V Overflow condition flag 28 1 C Carry condition flag 29 1 Z Zero condition flag 30 1 N Negative condition flag 31 1 Single Single Precision Floating Point Registers 32 RW float S0 Floating point register 0 157 S1 Floating point register 1 159 S2 Floating point register 2 161 S3 Floating point register 3 163 S4 Floating point register 4 165 S5 Floating point register 5 167 S6 Floating point register 6 169 S7 Floating point register 7 171 S8 Floating point register 8 173 S9 Floating point register 9 175 S10 Floating point register 10 177 S11 Floating point register 11 179 S12 Floating point register 12 181 S13 Floating point register 13 183 S14 Floating point register 14 185 S15 Floating point register 15 187