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Implement a good chunk of float instructions.

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Skyth 2024-09-13 15:17:20 +03:00
parent 87a74e2001
commit e78e5b7534
1 changed files with 87 additions and 0 deletions
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87
PowerRecomp/main.cpp
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@ -322,35 +322,122 @@ int main()
std::println(f, "\tctx.r{}.s64 = ctx.r{}.s32;", insn.operands[0], insn.operands[1]); std::println(f, "\tctx.r{}.s64 = ctx.r{}.s32;", insn.operands[0], insn.operands[1]);
break; break;
// TODO: fpu operations require denormal flushing checks
case PPC_INST_FABS: case PPC_INST_FABS:
std::println(f, "\tctx.f{}.f64 = fabs(ctx.f{}.f64);", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FADD: case PPC_INST_FADD:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64 + ctx.f{}.f64;", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_FADDS: case PPC_INST_FADDS:
std::println(f, "\tctx.f{}.f64 = float(ctx.f{}.f64 + ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_FCFID: case PPC_INST_FCFID:
// TODO: rounding mode?
std::println(f, "\tctx.f{}.f64 = ctx.f{}.s64;", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FCMPU: case PPC_INST_FCMPU:
break;
case PPC_INST_FCTID: case PPC_INST_FCTID:
// TODO: rounding mode?
std::println(f, "\tctx.f{}.s64 = ctx.f{}.f64;", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FCTIDZ: case PPC_INST_FCTIDZ:
std::println(f, "\tctx.f{}.s64 = ctx.f{}.f64;", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FCTIWZ: case PPC_INST_FCTIWZ:
std::println(f, "\tctx.f{}.s32 = ctx.f{}.f64;", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FDIV: case PPC_INST_FDIV:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64 / ctx.f{}.f64;", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_FDIVS: case PPC_INST_FDIVS:
std::println(f, "\tctx.f{}.f64 = float(ctx.f{}.f64 / ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_FMADD: case PPC_INST_FMADD:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64 * ctx.f{}.f64 + ctx.f{}.f64;", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FMADDS: case PPC_INST_FMADDS:
std::println(f, "\tctx.f{}.f64 = float(ctx.f{}.f64 * ctx.f{}.f64 + ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FMR: case PPC_INST_FMR:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64;", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FMSUB: case PPC_INST_FMSUB:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64 * ctx.f{}.f64 - ctx.f{}.f64;", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FMSUBS: case PPC_INST_FMSUBS:
std::println(f, "\tctx.f{}.f64 = float(ctx.f{}.f64 * ctx.f{}.f64 - ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FMUL: case PPC_INST_FMUL:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64 * ctx.f{}.f64;", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_FMULS: case PPC_INST_FMULS:
std::println(f, "\tctx.f{}.f64 = float(ctx.f{}.f64 * ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_FNABS: case PPC_INST_FNABS:
std::println(f, "\tctx.f{}.f64 = -fabs(ctx.f{}.f64);", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FNEG: case PPC_INST_FNEG:
std::println(f, "\tctx.f{}.f64 = -ctx.f{}.f64;", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FNMADDS: case PPC_INST_FNMADDS:
std::println(f, "\tctx.f{}.f64 = -float(ctx.f{}.f64 * ctx.f{}.f64 + ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FNMSUB: case PPC_INST_FNMSUB:
std::println(f, "\tctx.f{}.f64 = -(ctx.f{}.f64 * ctx.f{}.f64 - ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FNMSUBS: case PPC_INST_FNMSUBS:
std::println(f, "\tctx.f{}.f64 = -float(ctx.f{}.f64 * ctx.f{}.f64 - ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FRES: case PPC_INST_FRES:
std::println(f, "\tctx.f{}.f64 = 1.0 / ctx.f{}.f64;", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FRSP: case PPC_INST_FRSP:
std::println(f, "\tctx.f{}.f64 = float(ctx.f{}.f64);", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FSEL: case PPC_INST_FSEL:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64 >= 0.0 ? ctx.f{}.f64 : ctx.f{}.f64;", insn.operands[0], insn.operands[1], insn.operands[2], insn.operands[3]);
break;
case PPC_INST_FSQRT: case PPC_INST_FSQRT:
std::println(f, "\tctx.f{}.f64 = sqrt(ctx.f{}.f64);", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FSQRTS: case PPC_INST_FSQRTS:
std::println(f, "\tctx.f{}.f64 = float(sqrt(ctx.f{}.f64));", insn.operands[0], insn.operands[1]);
break;
case PPC_INST_FSUB: case PPC_INST_FSUB:
std::println(f, "\tctx.f{}.f64 = ctx.f{}.f64 - ctx.f{}.f64;", insn.operands[0], insn.operands[1], insn.operands[2]);
break;
case PPC_INST_FSUBS: case PPC_INST_FSUBS:
std::println(f, "\tctx.f{}.f64 = float(ctx.f{}.f64 - ctx.f{}.f64);", insn.operands[0], insn.operands[1], insn.operands[2]);
break; break;
case PPC_INST_LBZ: case PPC_INST_LBZ: