diff options
Diffstat (limited to 'src/target/armv4_5.c')
| -rw-r--r-- | src/target/armv4_5.c | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/src/target/armv4_5.c b/src/target/armv4_5.c index 0d890b80..334f834a 100644 --- a/src/target/armv4_5.c +++ b/src/target/armv4_5.c @@ -53,13 +53,63 @@ char* armv4_5_core_reg_list[] = "cpsr", "spsr_fiq", "spsr_irq", "spsr_svc", "spsr_abt", "spsr_und" }; -char * armv4_5_mode_strings_list[] = +static const char *armv4_5_mode_strings_list[] = { "Illegal mode value", "User", "FIQ", "IRQ", "Supervisor", "Abort", "Undefined", "System" }; /* Hack! Yuk! allow -1 index, which simplifies codepaths elsewhere in the code */ -char** armv4_5_mode_strings = armv4_5_mode_strings_list + 1; +const char **armv4_5_mode_strings = armv4_5_mode_strings_list + 1; + +/** Map PSR mode bits to linear number */ +int armv4_5_mode_to_number(enum armv4_5_mode mode) +{ + switch (mode) { + case ARMV4_5_MODE_ANY: + /* map MODE_ANY to user mode */ + case ARMV4_5_MODE_USR: + return 0; + case ARMV4_5_MODE_FIQ: + return 1; + case ARMV4_5_MODE_IRQ: + return 2; + case ARMV4_5_MODE_SVC: + return 3; + case ARMV4_5_MODE_ABT: + return 4; + case ARMV4_5_MODE_UND: + return 5; + case ARMV4_5_MODE_SYS: + return 6; + default: + LOG_ERROR("invalid mode value encountered %d", mode); + return -1; + } +} + +/** Map linear number to PSR mode bits. */ +enum armv4_5_mode armv4_5_number_to_mode(int number) +{ + switch (number) { + case 0: + return ARMV4_5_MODE_USR; + case 1: + return ARMV4_5_MODE_FIQ; + case 2: + return ARMV4_5_MODE_IRQ; + case 3: + return ARMV4_5_MODE_SVC; + case 4: + return ARMV4_5_MODE_ABT; + case 5: + return ARMV4_5_MODE_UND; + case 6: + return ARMV4_5_MODE_SYS; + default: + LOG_ERROR("mode index out of bounds %d", number); + return ARMV4_5_MODE_ANY; + } +} char* armv4_5_state_strings[] = { |