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backend/x64: Ensure all HostCalls are appropriately zero-extended

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This commit is contained in:
merry 2022-02-27 20:04:44 +00:00
parent 6c4fa780e0
commit 0a11e79b55
3 changed files with 5 additions and 0 deletions
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2
src/dynarmic/backend/x64/a32_emit_x64_memory.cpp
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@ -243,6 +243,7 @@ void A32EmitX64::EmitMemoryRead(A32EmitContext& ctx, IR::Inst* inst) {
// Neither fastmem nor page table: Use callbacks
ctx.reg_alloc.HostCall(inst, {}, args[0]);
Devirtualize<callback>(conf.callbacks).EmitCall(code);
code.ZeroExtendFrom(bitsize, code.ABI_RETURN);
return;
}
@ -386,6 +387,7 @@ void A32EmitX64::ExclusiveReadMemory(A32EmitContext& ctx, IR::Inst* inst) {
return (conf.callbacks->*callback)(vaddr);
});
});
code.ZeroExtendFrom(bitsize, code.ABI_RETURN);
}
template<size_t bitsize, auto callback>

2
src/dynarmic/backend/x64/a64_emit_x64_memory.cpp
View file

@ -406,6 +406,7 @@ void A64EmitX64::EmitMemoryRead(A64EmitContext& ctx, IR::Inst* inst) {
} else {
ctx.reg_alloc.HostCall(inst, {}, args[0]);
Devirtualize<callback>(conf.callbacks).EmitCall(code);
code.ZeroExtendFrom(bitsize, code.ABI_RETURN);
}
return;
}
@ -574,6 +575,7 @@ void A64EmitX64::EmitExclusiveReadMemory(A64EmitContext& ctx, IR::Inst* inst) {
return (conf.callbacks->*callback)(vaddr);
});
});
code.ZeroExtendFrom(bitsize, code.ABI_RETURN);
} else {
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
ctx.reg_alloc.Use(args[0], ABI_PARAM2);

1
src/dynarmic/backend/x64/emit_x64_sm4.cpp
View file

@ -15,6 +15,7 @@ void EmitX64::EmitSM4AccessSubstitutionBox(EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.HostCall(inst, args[0]);
code.CallFunction(&Common::Crypto::SM4::AccessSubstitutionBox);
code.movzx(code.ABI_RETURN.cvt32(), code.ABI_RETURN.cvt8());
}
} // namespace Dynarmic::Backend::X64