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a32_emit_x64: Use r14 for page_table pointer

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This commit is contained in:
MerryMage 2020-04-08 14:01:41 +01:00
parent 49fcfe040c
commit ad52c997f4
5 changed files with 47 additions and 17 deletions
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14
src/backend/x64/block_of_code.cpp
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@ -75,14 +75,14 @@ void ProtectMemory(const void* base, size_t size, bool is_executable) {
} // anonymous namespace
BlockOfCode::BlockOfCode(RunCodeCallbacks cb, JitStateInfo jsi)
BlockOfCode::BlockOfCode(RunCodeCallbacks cb, JitStateInfo jsi, std::function<void(BlockOfCode&)> rcp)
: Xbyak::CodeGenerator(TOTAL_CODE_SIZE, nullptr, &s_allocator)
, cb(std::move(cb))
, jsi(jsi)
, constant_pool(*this, CONSTANT_POOL_SIZE)
{
EnableWriting();
GenRunCode();
GenRunCode(rcp);
}
void BlockOfCode::PreludeComplete() {
@ -155,7 +155,7 @@ void BlockOfCode::ForceReturnFromRunCode(bool mxcsr_already_exited) {
jmp(return_from_run_code[index]);
}
void BlockOfCode::GenRunCode() {
void BlockOfCode::GenRunCode(std::function<void(BlockOfCode&)> rcp) {
Xbyak::Label loop, enter_mxcsr_then_loop;
align();
@ -168,14 +168,16 @@ void BlockOfCode::GenRunCode() {
ABI_PushCalleeSaveRegistersAndAdjustStack(*this);
mov(r15, ABI_PARAM1);
mov(r14, ABI_PARAM2); // save temporarily in non-volatile register
mov(rbx, ABI_PARAM2); // save temporarily in non-volatile register
cb.GetTicksRemaining->EmitCall(*this);
mov(qword[r15 + jsi.offsetof_cycles_to_run], ABI_RETURN);
mov(qword[r15 + jsi.offsetof_cycles_remaining], ABI_RETURN);
rcp(*this);
SwitchMxcsrOnEntry();
jmp(r14);
jmp(rbx);
align();
step_code = getCurr<RunCodeFuncType>();
@ -187,6 +189,8 @@ void BlockOfCode::GenRunCode() {
mov(qword[r15 + jsi.offsetof_cycles_to_run], 1);
mov(qword[r15 + jsi.offsetof_cycles_remaining], 1);
rcp(*this);
SwitchMxcsrOnEntry();
jmp(ABI_PARAM2);