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[x64] Allow the JIT to use volatile registers

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This commit is contained in:
Dr. Chat
2018-11-18 15:22:56 -06:00
parent b57bb74965
commit 384ec98a42
3 changed files with 49 additions and 55 deletions
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30
src/xenia/cpu/backend/x64/x64_emitter.cc
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@@ -56,12 +56,13 @@ static const size_t kStashOffset = 32;
// static const size_t kStashOffsetHigh = 32 + 32;
const uint32_t X64Emitter::gpr_reg_map_[X64Emitter::GPR_COUNT] = {
Xbyak::Operand::RBX, Xbyak::Operand::R12, Xbyak::Operand::R13,
Xbyak::Operand::R14, Xbyak::Operand::R15,
Xbyak::Operand::RBX, Xbyak::Operand::R10, Xbyak::Operand::R11,
Xbyak::Operand::R12, Xbyak::Operand::R13, Xbyak::Operand::R14,
Xbyak::Operand::R15,
};
const uint32_t X64Emitter::xmm_reg_map_[X64Emitter::XMM_COUNT] = {
6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
};
X64Emitter::X64Emitter(X64Backend* backend, XbyakAllocator* allocator)
@@ -494,30 +495,20 @@ void X64Emitter::CallExtern(const hir::Instr* instr, const Function* function) {
}
}
void X64Emitter::CallNative(void* fn) {
mov(rax, reinterpret_cast<uint64_t>(fn));
mov(rcx, GetContextReg());
call(rax);
}
void X64Emitter::CallNative(void* fn) { CallNativeSafe(fn); }
void X64Emitter::CallNative(uint64_t (*fn)(void* raw_context)) {
mov(rax, reinterpret_cast<uint64_t>(fn));
mov(rcx, GetContextReg());
call(rax);
CallNativeSafe(reinterpret_cast<void*>(fn));
}
void X64Emitter::CallNative(uint64_t (*fn)(void* raw_context, uint64_t arg0)) {
mov(rax, reinterpret_cast<uint64_t>(fn));
mov(rcx, GetContextReg());
call(rax);
CallNativeSafe(reinterpret_cast<void*>(fn));
}
void X64Emitter::CallNative(uint64_t (*fn)(void* raw_context, uint64_t arg0),
uint64_t arg0) {
mov(rax, reinterpret_cast<uint64_t>(fn));
mov(rcx, GetContextReg());
mov(rdx, arg0);
call(rax);
mov(GetNativeParam(0), arg0);
CallNativeSafe(reinterpret_cast<void*>(fn));
}
void X64Emitter::CallNativeSafe(void* fn) {
@@ -537,8 +528,7 @@ void X64Emitter::SetReturnAddress(uint64_t value) {
mov(qword[rsp + StackLayout::GUEST_CALL_RET_ADDR], rax);
}
Xbyak::Reg64 X64Emitter::GetNativeParam(uint32_t param)
{
Xbyak::Reg64 X64Emitter::GetNativeParam(uint32_t param) {
if (param == 0)
return rdx;
else if (param == 1)