diff options
Diffstat (limited to 'contrib/llvm/tools/lldb/source/Plugins/Process/Utility/ARMDefines.h')
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Plugins/Process/Utility/ARMDefines.h | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/Utility/ARMDefines.h b/contrib/llvm/tools/lldb/source/Plugins/Process/Utility/ARMDefines.h index 2c8ad35..cfb33be 100644 --- a/contrib/llvm/tools/lldb/source/Plugins/Process/Utility/ARMDefines.h +++ b/contrib/llvm/tools/lldb/source/Plugins/Process/Utility/ARMDefines.h @@ -45,7 +45,8 @@ typedef enum #define COND_AL 0xE // Always (unconditional) Always (unconditional) Any #define COND_UNCOND 0xF -static inline const char *ARMCondCodeToString(uint32_t CC) +static inline const char * +ARMCondCodeToString(uint32_t CC) { switch (CC) { default: assert(0 && "Unknown condition code"); @@ -67,6 +68,37 @@ static inline const char *ARMCondCodeToString(uint32_t CC) } } +static inline bool +ARMConditionPassed(const uint32_t condition, const uint32_t cpsr) +{ + const uint32_t cpsr_n = (cpsr >> 31) & 1u; // Negative condition code flag + const uint32_t cpsr_z = (cpsr >> 30) & 1u; // Zero condition code flag + const uint32_t cpsr_c = (cpsr >> 29) & 1u; // Carry condition code flag + const uint32_t cpsr_v = (cpsr >> 28) & 1u; // Overflow condition code flag + + switch (condition) { + case COND_EQ: return (cpsr_z == 1); + case COND_NE: return (cpsr_z == 0); + case COND_CS: return (cpsr_c == 1); + case COND_CC: return (cpsr_c == 0); + case COND_MI: return (cpsr_n == 1); + case COND_PL: return (cpsr_n == 0); + case COND_VS: return (cpsr_v == 1); + case COND_VC: return (cpsr_v == 0); + case COND_HI: return ((cpsr_c == 1) && (cpsr_z == 0)); + case COND_LS: return ((cpsr_c == 0) || (cpsr_z == 1)); + case COND_GE: return (cpsr_n == cpsr_v); + case COND_LT: return (cpsr_n != cpsr_v); + case COND_GT: return ((cpsr_z == 0) && (cpsr_n == cpsr_v)); + case COND_LE: return ((cpsr_z == 1) || (cpsr_n != cpsr_v)); + case COND_AL: + case COND_UNCOND: + default: + return true; + } + return false; +} + // Bit positions for CPSR #define CPSR_T_POS 5 #define CPSR_F_POS 6 |
