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backend/A64/a32_emit_a64.cpp: EmitA32{Get,Set}Fpscr, set the guest_fpcr to host fpcr

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This commit is contained in:
SachinVin 2020-04-14 21:49:29 +05:30
parent 66e7693204
commit 27e21530b3
1 changed files with 8 additions and 2 deletions
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10
src/backend/A64/a32_emit_a64.cpp
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@ -732,11 +732,14 @@ static u32 GetFpscrImpl(A32JitState* jit_state) {
void A32EmitA64::EmitA32GetFpscr(A32EmitContext& ctx, IR::Inst* inst) { void A32EmitA64::EmitA32GetFpscr(A32EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.HostCall(inst); ctx.reg_alloc.HostCall(inst);
// Use an unused HostCall register // Use an unused HostCall register
ARM64Reg fpsr = X9; const ARM64Reg fpsr = X9;
const ARM64Reg fpcr = X10;
code.MOV(code.ABI_PARAM1, X28); code.MOV(code.ABI_PARAM1, X28);
code.MRS(fpsr, FIELD_FPSR); code.MRS(fpsr, FIELD_FPSR);
code.MRS(fpcr, FIELD_FPCR);
code.STR(INDEX_UNSIGNED, fpsr, X28, offsetof(A32JitState, guest_fpsr)); code.STR(INDEX_UNSIGNED, fpsr, X28, offsetof(A32JitState, guest_fpsr));
code.STR(INDEX_UNSIGNED, fpcr, X28, offsetof(A32JitState, guest_fpcr));
code.QuickCallFunction(&GetFpscrImpl); code.QuickCallFunction(&GetFpscrImpl);
} }
@ -748,14 +751,17 @@ void A32EmitA64::EmitA32SetFpscr(A32EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst); auto args = ctx.reg_alloc.GetArgumentInfo(inst);
ctx.reg_alloc.HostCall(nullptr, args[0]); ctx.reg_alloc.HostCall(nullptr, args[0]);
// Use an unused HostCall register // Use an unused HostCall register
ARM64Reg fpsr = X9; const ARM64Reg fpsr = X9;
const ARM64Reg fpcr = X10;
code.MOV(code.ABI_PARAM2, X28); code.MOV(code.ABI_PARAM2, X28);
code.QuickCallFunction(&SetFpscrImpl); code.QuickCallFunction(&SetFpscrImpl);
code.LDR(INDEX_UNSIGNED, fpsr, X28, offsetof(A32JitState, guest_fpsr)); code.LDR(INDEX_UNSIGNED, fpsr, X28, offsetof(A32JitState, guest_fpsr));
code.LDR(INDEX_UNSIGNED, fpcr, X28, offsetof(A32JitState, guest_fpcr));
code._MSR(FIELD_FPSR, fpsr); code._MSR(FIELD_FPSR, fpsr);
code._MSR(FIELD_FPCR, fpcr);
} }
void A32EmitA64::EmitA32GetFpscrNZCV(A32EmitContext& ctx, IR::Inst* inst) { void A32EmitA64::EmitA32GetFpscrNZCV(A32EmitContext& ctx, IR::Inst* inst) {