diff options
Diffstat (limited to 'src/core/arm')
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_interpreter.cpp | 60 |
1 files changed, 31 insertions, 29 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp index e3ca02e98..4759c7653 100644 --- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp +++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp @@ -4964,39 +4964,41 @@ unsigned InterpreterMainLoop(ARMul_State* state) { } MSR_INST: { - msr_inst *inst_cream = (msr_inst *)inst_base->component; - const uint32_t UnallocMask = 0x06f0fc00, UserMask = 0xf80f0200, PrivMask = 0x000001df, StateMask = 0x01000020; - unsigned int inst = inst_cream->inst; - unsigned int operand; + if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { + msr_inst *inst_cream = (msr_inst *)inst_base->component; + const uint32_t UnallocMask = 0x06f0fc00, UserMask = 0xf80f0200, PrivMask = 0x000001df, StateMask = 0x01000020; + unsigned int inst = inst_cream->inst; + unsigned int operand; - if (BIT(inst, 25)) { - int rot_imm = BITS(inst, 8, 11) * 2; - operand = ROTATE_RIGHT_32(BITS(inst, 0, 7), rot_imm); - } else { - operand = cpu->Reg[BITS(inst, 0, 3)]; - } - uint32_t byte_mask = (BIT(inst, 16) ? 0xff : 0) | (BIT(inst, 17) ? 0xff00 : 0) - | (BIT(inst, 18) ? 0xff0000 : 0) | (BIT(inst, 19) ? 0xff000000 : 0); - uint32_t mask; - if (!inst_cream->R) { - if (InAPrivilegedMode(cpu)) { - if ((operand & StateMask) != 0) { - /// UNPREDICTABLE - DEBUG_MSG; - } else - mask = byte_mask & (UserMask | PrivMask); + if (BIT(inst, 25)) { + int rot_imm = BITS(inst, 8, 11) * 2; + operand = ROTATE_RIGHT_32(BITS(inst, 0, 7), rot_imm); } else { - mask = byte_mask & UserMask; + operand = cpu->Reg[BITS(inst, 0, 3)]; } - SAVE_NZCVT; + uint32_t byte_mask = (BIT(inst, 16) ? 0xff : 0) | (BIT(inst, 17) ? 0xff00 : 0) + | (BIT(inst, 18) ? 0xff0000 : 0) | (BIT(inst, 19) ? 0xff000000 : 0); + uint32_t mask; + if (!inst_cream->R) { + if (InAPrivilegedMode(cpu)) { + if ((operand & StateMask) != 0) { + /// UNPREDICTABLE + DEBUG_MSG; + } else + mask = byte_mask & (UserMask | PrivMask); + } else { + mask = byte_mask & UserMask; + } + SAVE_NZCVT; - cpu->Cpsr = (cpu->Cpsr & ~mask) | (operand & mask); - switch_mode(cpu, cpu->Cpsr & 0x1f); - LOAD_NZCVT; - } else { - if (CurrentModeHasSPSR) { - mask = byte_mask & (UserMask | PrivMask | StateMask); - cpu->Spsr_copy = (cpu->Spsr_copy & ~mask) | (operand & mask); + cpu->Cpsr = (cpu->Cpsr & ~mask) | (operand & mask); + switch_mode(cpu, cpu->Cpsr & 0x1f); + LOAD_NZCVT; + } else { + if (CurrentModeHasSPSR) { + mask = byte_mask & (UserMask | PrivMask | StateMask); + cpu->Spsr_copy = (cpu->Spsr_copy & ~mask) | (operand & mask); + } } } cpu->Reg[15] += GET_INST_SIZE(cpu); |