Method MOVSXOp

FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp:1080–1090

}

void OpDispatchBuilder::MOVSXOp(OpcodeArgs) {
  // Load garbage in upper bits, since we're sign extending anyway
  const auto Size = OpSizeFromSrc(Op);
  Ref Src = LoadSource(GPRClass, Op, Op->Src[0], Op->Flags, {.AllowUpperGarbage = true});

  // Sign-extend to DstSize and zero-extend to the register size, using a fast
  // path for 32-bit dests where the native 32-bit Sbfe zero extends the top.
  const auto DstSize = OpSizeFromDst(Op);
  Src = _Sbfe(DstSize == OpSize::i64Bit ? OpSize::i64Bit : OpSize::i32Bit, IR::OpSizeAsBits(Size), 0, Src);
  StoreResult(GPRClass, Op, Op->Dest, Src, OpSize::iInvalid);
}

void OpDispatchBuilder::MOVZXOp(OpcodeArgs) {
  Ref Src = LoadSource(GPRClass, Op, Op->Src[0], Op->Flags);