saulteafarmer/XenonRecomp
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Add/subtract with carry instructions.

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This commit is contained in:
Skyth 2024-09-13 21:36:25 +03:00
parent ed81fec868
commit 29d1c0822c
1 changed files with 17 additions and 0 deletions
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17
PowerRecomp/main.cpp
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@ -96,6 +96,9 @@ int main()
break;
case PPC_INST_ADDIC:
std::println(f, "\tctx.xer.ca = _addcarry_u64(0, ctx.r{}.u64, uint64_t(int64_t({})), &ctx.r{}.u64);", insn.operands[1], static_cast<int32_t>(insn.operands[2]), insn.operands[0]);
if (insn.opcode->opcode & 0x1)
std::println(f, "\tctx.cr0.compare<int32_t>(ctx.r{}.s32, 0, ctx.xer);", insn.operands[0]);
break;
case PPC_INST_ADDIS:
@ -103,6 +106,9 @@ int main()
break;
case PPC_INST_ADDZE:
std::println(f, "\tctx.xer.ca = _addcarry_u64(ctx.xer.ca, ctx.r{}.u64, 0, &ctx.r{}.u64);", insn.operands[1], insn.operands[0]);
if (insn.opcode->opcode & 0x1)
std::println(f, "\tctx.cr0.compare<int32_t>(ctx.r{}.s32, 0, ctx.xer);", insn.operands[0]);
break;
case PPC_INST_AND:
@ -783,8 +789,19 @@ int main()
break;
case PPC_INST_SUBFC:
std::println(f, "\tctx.xer.ca = _subborrow_u64(0, ctx.r{}.u64, ctx.r{}.u64, &ctx.r{}.u64);", insn.operands[2], insn.operands[1], insn.operands[0]);
if (insn.opcode->opcode & 0x1)
std::println(f, "\tctx.cr0.compare<int32_t>(ctx.r{}.s32, 0, ctx.xer);", insn.operands[0]);
break;
case PPC_INST_SUBFE:
std::println(f, "\tctx.xer.ca = _addcarry_u64(ctx.xer.ca, ~ctx.r{}.u64, ctx.r{}.u64, &ctx.r{}.u64);", insn.operands[1], insn.operands[2], insn.operands[0]);
break;
case PPC_INST_SUBFIC:
std::println(f, "\tctx.xer.ca = _subborrow_u64(0, uint64_t(int64_t({})), ctx.r{}.u64, &ctx.r{}.u64);", static_cast<int32_t>(insn.operands[2]), insn.operands[1], insn.operands[0]);
break;
case PPC_INST_SYNC:
case PPC_INST_TDLGEI:
case PPC_INST_TDLLEI: