diff options
| -rw-r--r-- | src/video_core/shader/decode/shift.cpp | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/video_core/shader/decode/shift.cpp b/src/video_core/shader/decode/shift.cpp index 41f5b8cb0..76938fa05 100644 --- a/src/video_core/shader/decode/shift.cpp +++ b/src/video_core/shader/decode/shift.cpp @@ -16,7 +16,32 @@ u32 ShaderIR::DecodeShift(BasicBlock& bb, u32 pc) { const Instruction instr = {program_code[pc]}; const auto opcode = OpCode::Decode(instr); - UNIMPLEMENTED(); + const Node op_a = GetRegister(instr.gpr8); + const Node op_b = [&]() { + if (instr.is_b_imm) { + return Immediate(instr.alu.GetSignedImm20_20()); + } else if (instr.is_b_gpr) { + return GetRegister(instr.gpr20); + } else { + return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset); + } + }(); + + switch (opcode->get().GetId()) { + case OpCode::Id::SHR_C: + case OpCode::Id::SHR_R: + case OpCode::Id::SHR_IMM: { + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in SHR is not implemented"); + + const Node value = SignedOperation(OperationCode::IArithmeticShiftRight, + instr.shift.is_signed, PRECISE, op_a, op_b); + SetRegister(bb, instr.gpr0, value); + break; + } + default: + UNIMPLEMENTED_MSG("Unhandled shift instruction: {}", opcode->get().GetName()); + } return pc; } |