mirrors/dynarmic
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

backend_x64: Fix ABI violation in ReadMemory and WriteMemory

Browse source 
Caller-save registers were not saved before call instruction.

Refer to issue #98.
This commit is contained in:
MerryMage 2017-02-26 14:48:47 +00:00
parent 3768174783
commit d7ab1f9c64
1 changed files with 12 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
src/backend_x64/emit_x64.cpp
View file

@ -2778,10 +2778,12 @@ static void ReadMemory(BlockOfCode* code, RegAlloc& reg_alloc, IR::Inst* inst, U
using namespace Xbyak::util; using namespace Xbyak::util;
Xbyak::Reg64 result = reg_alloc.DefGpr(inst, { ABI_RETURN }); reg_alloc.HostCall(inst, inst->GetArg(0));
Xbyak::Reg32 vaddr = reg_alloc.UseScratchGpr(inst->GetArg(0), { ABI_PARAM1 }).cvt32();
Xbyak::Reg64 page_index = reg_alloc.ScratchGpr(); Xbyak::Reg64 result = code->ABI_RETURN;
Xbyak::Reg64 page_offset = reg_alloc.ScratchGpr(); Xbyak::Reg32 vaddr = code->ABI_PARAM1.cvt32();
Xbyak::Reg64 page_index = code->ABI_PARAM3;
Xbyak::Reg64 page_offset = code->ABI_PARAM4;
Xbyak::Label abort, end; Xbyak::Label abort, end;
@ -2826,11 +2828,12 @@ static void WriteMemory(BlockOfCode* code, RegAlloc& reg_alloc, IR::Inst* inst,
using namespace Xbyak::util; using namespace Xbyak::util;
reg_alloc.ScratchGpr({ HostLoc::RAX }); reg_alloc.HostCall(nullptr, inst->GetArg(0), inst->GetArg(1));
Xbyak::Reg32 vaddr = reg_alloc.UseScratchGpr(inst->GetArg(0), { ABI_PARAM1 }).cvt32();
Xbyak::Reg64 value = reg_alloc.UseScratchGpr(inst->GetArg(1), { ABI_PARAM2 }); Xbyak::Reg32 vaddr = code->ABI_PARAM1.cvt32();
Xbyak::Reg64 page_index = reg_alloc.ScratchGpr(); Xbyak::Reg64 value = code->ABI_PARAM2;
Xbyak::Reg64 page_offset = reg_alloc.ScratchGpr(); Xbyak::Reg64 page_index = code->ABI_PARAM3;
Xbyak::Reg64 page_offset = code->ABI_PARAM4;
Xbyak::Label abort, end; Xbyak::Label abort, end;