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Define XER register.

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Skyth 2024-09-12 17:41:39 +03:00
parent eaa8e7d482
commit 1ab19abed5
2 changed files with 12 additions and 3 deletions
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4
PowerRecomp/main.cpp
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@ -233,14 +233,14 @@ int main()
break; break;
case PPC_INST_CMPLWI: case PPC_INST_CMPLWI:
std::println(f, "\tctx.cr{}.compare<uint32_t>(ctx.r{}.u32, {});", insn.operands[0], insn.operands[1], insn.operands[2]); std::println(f, "\tctx.cr{}.compare<uint32_t>(ctx.r{}.u32, {}, ctx.xer);", insn.operands[0], insn.operands[1], insn.operands[2]);
break; break;
case PPC_INST_CMPW: case PPC_INST_CMPW:
break; break;
case PPC_INST_CMPWI: case PPC_INST_CMPWI:
std::println(f, "\tctx.cr{}.compare<int32_t>(ctx.r{}.s32, {});", insn.operands[0], insn.operands[1], int32_t(insn.operands[2])); std::println(f, "\tctx.cr{}.compare<int32_t>(ctx.r{}.s32, {}, ctx.xer);", insn.operands[0], insn.operands[1], int32_t(insn.operands[2]));
break; break;
case PPC_INST_CNTLZD: case PPC_INST_CNTLZD:

11
PowerUtils/ppc_context.h
View File

@ -39,6 +39,13 @@ struct PPCRegister
}; };
}; };
struct PPCXERRegister
{
uint8_t so;
uint8_t ov;
uint8_t ca;
};
struct PPCCRRegister struct PPCCRRegister
{ {
uint8_t lt; uint8_t lt;
@ -47,11 +54,12 @@ struct PPCCRRegister
uint8_t so; uint8_t so;
template<typename T> template<typename T>
void compare(T left, T right) void compare(T left, T right, const PPCXERRegister& xer)
{ {
lt = left < right; lt = left < right;
gt = left > right; gt = left > right;
eq = left == right; eq = left == right;
so = xer.so;
} }
}; };
@ -61,6 +69,7 @@ struct PPCContext
{ {
uint64_t lr; uint64_t lr;
uint64_t ctr; uint64_t ctr;
PPCXERRegister xer;
union union
{ {