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Merge pull request #579 from lioncash/bkpt
dyncom: Support conditional BKPT instructions
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commit
60f9cd6a4a
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@ -42,7 +42,7 @@ const ISEITEM arm_instruction[] = {
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{ "srs", 4, 6, 25, 31, 0x0000007c, 22, 22, 0x00000001, 16, 20, 0x0000000d, 8, 11, 0x00000005 },
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{ "rfe", 4, 6, 25, 31, 0x0000007c, 22, 22, 0x00000000, 20, 20, 0x00000001, 8, 11, 0x0000000a },
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{ "bkpt", 2, 3, 20, 31, 0x00000e12, 4, 7, 0x00000007 },
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{ "bkpt", 2, 3, 20, 27, 0x00000012, 4, 7, 0x00000007 },
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{ "blx", 1, 3, 25, 31, 0x0000007d },
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{ "cps", 3, 6, 20, 31, 0x00000f10, 16, 16, 0x00000000, 5, 5, 0x00000000 },
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{ "pld", 4, 4, 26, 31, 0x0000003d, 24, 24, 0x00000001, 20, 22, 0x00000005, 12, 15, 0x0000000f },
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@ -792,6 +792,7 @@ typedef struct _stm_inst {
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} stm_inst;
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struct bkpt_inst {
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u32 imm;
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};
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struct blx1_inst {
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@ -1371,7 +1372,22 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(bic)(unsigned int inst, int index)
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inst_base->br = INDIRECT_BRANCH;
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return inst_base;
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}
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static ARM_INST_PTR INTERPRETER_TRANSLATE(bkpt)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("BKPT"); }
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static ARM_INST_PTR INTERPRETER_TRANSLATE(bkpt)(unsigned int inst, int index)
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{
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arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(bkpt_inst));
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bkpt_inst* const inst_cream = (bkpt_inst*)inst_base->component;
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inst_base->cond = BITS(inst, 28, 31);
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inst_base->idx = index;
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inst_base->br = NON_BRANCH;
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inst_base->load_r15 = 0;
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inst_cream->imm = BITS(inst, 8, 19) | BITS(inst, 0, 3);
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return inst_base;
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}
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static ARM_INST_PTR INTERPRETER_TRANSLATE(blx)(unsigned int inst, int index)
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{
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arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(blx_inst));
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@ -4081,6 +4097,16 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
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GOTO_NEXT_INST;
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}
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BKPT_INST:
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{
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if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
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bkpt_inst* const inst_cream = (bkpt_inst*)inst_base->component;
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LOG_DEBUG(Core_ARM11, "Breakpoint instruction hit. Immediate: 0x%08X", inst_cream->imm);
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}
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cpu->Reg[15] += GET_INST_SIZE(cpu);
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INC_PC(sizeof(bkpt_inst));
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FETCH_INST;
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GOTO_NEXT_INST;
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}
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BLX_INST:
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{
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blx_inst *inst_cream = (blx_inst *)inst_base->component;
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