| 43 | } |
| 44 | |
| 45 | static int GetSpecialRegister(LowLevelILFunction& il, decomp_result* instr, size_t operand) |
| 46 | { |
| 47 | uint32_t mask = instr->fields[FIELD_mask] & 0xF; |
| 48 | |
| 49 | if (IS_FIELD_PRESENT(instr, FIELD_write_spsr)) |
| 50 | { |
| 51 | if (instr->fields[FIELD_write_spsr]) |
| 52 | return REGS_SPSR + mask; |
| 53 | else |
| 54 | return REGS_CPSR + mask; |
| 55 | } |
| 56 | |
| 57 | uint32_t tmp = (instr->fields[FIELD_write_nzcvq] << 1) | instr->fields[FIELD_write_g]; |
| 58 | uint8_t sysm = instr->fields[FIELD_SYSm]; |
| 59 | switch (sysm >> 3) |
| 60 | { |
| 61 | case 0: |
| 62 | switch(tmp) |
| 63 | { |
| 64 | case 1: return REGS_APSR_G; |
| 65 | case 2: return REGS_APSR_NZCVQ; |
| 66 | case 3: return REGS_APSR_NZCVQG; |
| 67 | } |
| 68 | break; |
| 69 | case 1: |
| 70 | switch (sysm & 7) |
| 71 | { |
| 72 | case 0: return REGS_MSP; |
| 73 | case 1: return REGS_PSP; |
| 74 | } |
| 75 | break; |
| 76 | case 2: |
| 77 | switch (sysm & 7) |
| 78 | { |
| 79 | case 0: return REGS_PRIMASK; |
| 80 | case 1: |
| 81 | case 2: return REGS_BASEPRI; |
| 82 | case 3: return REGS_FAULTMASK; |
| 83 | case 4: return REGS_CONTROL; |
| 84 | } |
| 85 | break; |
| 86 | } |
| 87 | |
| 88 | return REG_INVALID; |
| 89 | } |
| 90 | |
| 91 | static ExprId ReadILOperand(LowLevelILFunction& il, decomp_result* instr, size_t operand, size_t size = 4) |
| 92 | { |
no outgoing calls
no test coverage detected