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Merge pull request #1653 from mailwl/blx-lr

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Fix BLX LR opcode interpretation
This commit is contained in:
Mathew Maidment 2016-04-09 15:32:42 -04:00
commit 0b7efc2be2
1 changed files with 3 additions and 2 deletions
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src/core/arm/dyncom/arm_dyncom_interpreter.cpp
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@ -4080,11 +4080,12 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
if ((inst_base->cond == ConditionCode::AL) || CondPassed(cpu, inst_base->cond)) {
unsigned int inst = inst_cream->inst;
if (BITS(inst, 20, 27) == 0x12 && BITS(inst, 4, 7) == 0x3) {
const u32 jump_address = cpu->Reg[inst_cream->val.Rm];
cpu->Reg[14] = (cpu->Reg[15] + cpu->GetInstructionSize());
if(cpu->TFlag)
cpu->Reg[14] |= 0x1;
cpu->Reg[15] = cpu->Reg[inst_cream->val.Rm] & 0xfffffffe;
cpu->TFlag = cpu->Reg[inst_cream->val.Rm] & 0x1;
cpu->Reg[15] = jump_address & 0xfffffffe;
cpu->TFlag = jump_address & 0x1;
} else {
cpu->Reg[14] = (cpu->Reg[15] + cpu->GetInstructionSize());
cpu->TFlag = 0x1;