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FPSCR: Save and restore MSCSR across supervisor call, fix MXCSR exception mask

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MerryMage
2016-08-07 00:40:29 +01:00
parent c35f06470f
commit f88b1b4c2e
3 changed files with 6 additions and 2 deletions
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4
src/backend_x64/emit_x64.cpp
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@@ -307,7 +307,11 @@ void EmitX64::EmitCallSupervisor(IR::Block&, IR::Inst* inst) {
reg_alloc.HostCall(nullptr, imm32);
code->STMXCSR(MDisp(R15, offsetof(JitState, guest_MXCSR)));
code->LDMXCSR(MDisp(R15, offsetof(JitState, save_host_MXCSR)));
code->ABI_CallFunction(reinterpret_cast<void*>(cb.CallSVC));
code->STMXCSR(MDisp(R15, offsetof(JitState, save_host_MXCSR)));
code->LDMXCSR(MDisp(R15, offsetof(JitState, guest_MXCSR)));
}
void EmitX64::EmitGetCarryFromOp(IR::Block&, IR::Inst*) {