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A64: Add Step

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Allow for stepping instruction-by-instruction
This commit is contained in:
MerryMage 2020-04-06 15:05:50 +01:00
parent 53e23efcef
commit f69c77391e
11 changed files with 108 additions and 32 deletions
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17
src/backend/x64/block_of_code.cpp
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@ -142,6 +142,10 @@ void BlockOfCode::RunCodeFrom(void* jit_state, CodePtr code_ptr) const {
run_code_from(jit_state, code_ptr);
}
void BlockOfCode::StepCode(void* jit_state, CodePtr code_ptr) const {
step_code(jit_state, code_ptr);
}
void BlockOfCode::ReturnFromRunCode(bool mxcsr_already_exited) {
size_t index = 0;
if (mxcsr_already_exited)
@ -174,6 +178,19 @@ void BlockOfCode::GenRunCode() {
SwitchMxcsrOnEntry();
jmp(r14);
align();
step_code = getCurr<RunCodeFromFuncType>();
ABI_PushCalleeSaveRegistersAndAdjustStack(*this);
mov(r15, ABI_PARAM1);
mov(qword[r15 + jsi.offsetof_cycles_to_run], 1);
mov(qword[r15 + jsi.offsetof_cycles_remaining], 1);
SwitchMxcsrOnEntry();
jmp(ABI_PARAM2);
align();
run_code = getCurr<RunCodeFuncType>();