ARM11 ARM 11 State Current CPU State 1 Core (Now) Current State CPU Registers 32 RW unsigned int R0 General purpose register 0 0 R1 General purpose register 1 1 R2 General purpose register 2 2 R3 General purpose register 3 3 R4 General purpose register 4 4 R5 General purpose register 5 5 R6 General purpose register 6 6 R7 General purpose register 7 7 R8 General purpose register 8 72 R9 General purpose register 9 73 R10 General purpose register 10 74 R11 General purpose register 11 75 R12 General purpose register 12 76 R13 SP R13 (SP) Stack pointer (SP) 77 R14 LR R14 (LR) Link register (LR) 78 R15 PC R15 (PC) Program counter (PC) 9 CPSR Current program status register 8 M Mode bits 0 5 T Thumb state 5 1 F SVC disable 6 1 I IRQ disable 7 1 A Asynchroneous abort disable 8 1 E Data endianess 9 1 GE Greater-than-or-equal bits 16 4 J Jazelle state 24 1 Q Sticky overflow flag 27 1 V Overflow flag 28 1 C Carry flag 29 1 Z Zero flag 30 1 N Negative flag 31 1 FPU Registers Floating Point Registers 32 RW float S0 Floating point register 0 40 S1 Floating point register 1 41 S2 Floating point register 2 42 S3 Floating point register 3 43 S4 Floating point register 4 44 S5 Floating point register 5 45 S6 Floating point register 6 46 S7 Floating point register 7 47 S8 Floating point register 8 48 S9 Floating point register 9 49 S10 Floating point register 10 50 S11 Floating point register 11 51 S12 Floating point register 12 52 S13 Floating point register 13 53 S14 Floating point register 14 54 S15 Floating point register 15 55 S16 Floating point register 16 56 S17 Floating point register 17 57 S18 Floating point register 18 58 S19 Floating point register 19 59 S20 Floating point register 20 60 S21 Floating point register 21 61 S22 Floating point register 22 62 S23 Floating point register 23 63 S24 Floating point register 24 64 S25 Floating point register 25 65 S26 Floating point register 26 66 S27 Floating point register 27 67 S28 Floating point register 28 68 S29 Floating point register 29 69 S30 Floating point register 30 70 S31 Floating point register 31 71 FPSID Floating point system information register RO 0x41011090 37 Implementer Implementer ID 24 8 SW Software emulation support flag 23 1 Format FSTMX/FLDMX format 21 2 SNG Both single-precision and double-precision data supported 20 1 Architecture VFPv2 architecture 16 4 PartNumber Part number 8 8 Variant Variant ID 4 4 Revision Revision number 0 4 FPSCR Floating point status and control register RW 0x0 38 IOC Invalid operation cumulative exception flag 0 1 DZC Division by zero cumulative exception flag 1 1 OFC Overflow cumulative exception flag 2 1 UFC Underflow cumulative exception flag 3 1 IXC Inexact cumulative exception flag 4 1 IDC Input denormal cumulative exception flag 7 1 IOE Invalid operation exception enable bit 8 1 DZE Division by zero exception enable bit 9 1 OFE Overflow exception enable bit 10 1 UFE Underflow exception enable bit 11 1 IXE Inexact exception enable bit 12 1 IDE Input Subnormal exception enable bit 15 1 Len Vector length 16 3 Stride Stride control 20 2 R-Mode Rounding mode control 22 2 FZ Flush-to-zero mode enable bit 24 1 DN Default NaN mode enable bit 25 1 V Set if comparison produces an unordered result 28 1 C Set if comparison produces an equal, greater than, or unordered result 29 1 Z Set if comparison produces an equal result 30 1 N Set if comparison produces a less than result 31 1 FPEXC Floating point exception register RW 0x0 39 IOC Invalid operation cumulative flag 0 1 OFC Overflow cumulative flag 2 1 UFC Underflow cumulative flag 3 1 INV Input exception flag 7 1 VECITR Vector iteration count field 8 3 FP2V FPINST2 register instruction valid flag 28 1 EN VFP enable bit 30 1 EX Exception flag 31 1 Core (All) All CPU Registers 32 RW unsigned int R0_USR General purpose register 0 (User Mode) 0 R1_USR General purpose register 1 (User Mode) 1 R2_USR General purpose register 2 (User Mode) 2 R3_USR General purpose register 3 (User Mode) 3 R4_USR General purpose register 4 (User Mode) 4 R5_USR General purpose register 5 (User Mode) 5 R6_USR General purpose register 6 (User Mode) 6 R7_USR General purpose register 7 (User Mode) 7 R8_USR General purpose register 8 (User Mode) 10 R9_USR General purpose register 9 (User Mode) 11 R10_USR General purpose register 10 (User Mode) 12 R11_USR General purpose register 11 (User Mode) 13 R12_USR General purpose register 12 (User Mode) 14 R13_USR Stack pointer (User Mode) 15 R14_USR Link register (User Mode) 16 R15_USR Program counter (User Mode) 9 SPSR_USR Current program status register (User Mode) 8 M Mode bits 0 5 T Thumb state 5 1 F SVC disable 6 1 I IRQ disable 7 1 A Asynchroneous abort disable 8 1 E Data endianess 9 1 IC/IT Interruptible-continuable instruction bits 10 6 GE Greater-than-or-equal bits 16 4 J Java state 24 1 Q Sticky overflow flag 27 1 V Overflow flag 28 1 C Carry flag 29 1 Z Zero flag 30 1 N Negative flag 31 1 R8_FIQ General purpose register 8 (Fast Interrupt Mode) 18 R9_FIQ General purpose register 9 (Fast Interrupt Mode) 19 R10_FIQ General purpose register 10 (Fast Interrupt Mode) 20 R11_FIQ General purpose register 11 (Fast Interrupt Mode) 21 R12_FIQ General purpose register 12 (Fast Interrupt Mode) 22 R13_FIQ Stack pointer (Fast Interrupt Mode) 23 R14_FIQ Link register (Fast Interrupt Mode) 24 SPSR_FIQ Current program status register (Fast Interrupt Mode) 17 M Mode bits 0 5 T Thumb state 5 1 F SVC disable 6 1 I IRQ disable 7 1 A Asynchroneous abort disable 8 1 E Data endianess 9 1 IC/IT Interruptible-continuable instruction bits 10 6 GE Greater-than-or-equal bits 16 4 J Java state 24 1 Q Sticky overflow flag 27 1 V Overflow flag 28 1 C Carry flag 29 1 Z Zero flag 30 1 N Negative flag 31 1 R13_SVC Stack pointer (Supervisor Mode) 26 R14_SVC Link register (Supervisor Mode) 27 SPSR_SVC Current program status register (Supervisor Mode) 25 M Mode bits 0 5 T Thumb state 5 1 F SVC disable 6 1 I IRQ disable 7 1 A Asynchroneous abort disable 8 1 E Data endianess 9 1 IC/IT Interruptible-continuable instruction bits 10 6 GE Greater-than-or-equal bits 16 4 J Java state 24 1 Q Sticky overflow flag 27 1 V Overflow flag 28 1 C Carry flag 29 1 Z Zero flag 30 1 N Negative flag 31 1 R13_ABT Stack pointer (Abort Mode) 29 R14_ABT Link register (Abort Mode) 30 SPSR_ABT Current program status register (Abort Mode) 28 M Mode bits 0 5 T Thumb state 5 1 F SVC disable 6 1 I IRQ disable 7 1 A Asynchroneous abort disable 8 1 E Data endianess 9 1 IC/IT Interruptible-continuable instruction bits 10 6 GE Greater-than-or-equal bits 16 4 J Java state 24 1 Q Sticky overflow flag 27 1 V Overflow flag 28 1 C Carry flag 29 1 Z Zero flag 30 1 N Negative flag 31 1 R13_IRQ Stack pointer (Interrupt Mode) 32 R14_IRQ Link register (Interrupt Mode) 33 SPSR_IRQ Current program status register (Interrupt Mode) 31 M Mode bits 0 5 T Thumb state 5 1 F SVC disable 6 1 I IRQ disable 7 1 A Asynchroneous abort disable 8 1 E Data endianess 9 1 IC/IT Interruptible-continuable instruction bits 10 6 GE Greater-than-or-equal bits 16 4 J Java state 24 1 Q Sticky overflow flag 27 1 V Overflow flag 28 1 C Carry flag 29 1 Z Zero flag 30 1 N Negative flag 31 1 R13_UND Stack pointer (Undefined Mode) 35 R14_UND Link register (Undefined Mode) 36 SPSR_UND Current program status register (Undefined Mode) 34 M Mode bits 0 5 T Thumb state 5 1 F SVC disable 6 1 I IRQ disable 7 1 A Asynchroneous abort disable 8 1 E Data endianess 9 1 IC/IT Interruptible-continuable instruction bits 10 6 GE Greater-than-or-equal bits 16 4 J Java state 24 1 Q Sticky overflow flag 27 1 V Overflow flag 28 1 C Carry flag 29 1 Z Zero flag 30 1 N Negative flag 31 1