diff options
| -rw-r--r-- | src/video_core/shader/decode/bfi.cpp | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/video_core/shader/decode/bfi.cpp b/src/video_core/shader/decode/bfi.cpp index b94d46ce6..6a851b22e 100644 --- a/src/video_core/shader/decode/bfi.cpp +++ b/src/video_core/shader/decode/bfi.cpp @@ -16,7 +16,28 @@ u32 ShaderIR::DecodeBfi(BasicBlock& bb, u32 pc) { const Instruction instr = {program_code[pc]}; const auto opcode = OpCode::Decode(instr); - UNIMPLEMENTED(); + UNIMPLEMENTED_IF(instr.generates_cc); + + const auto [base, packed_shift] = [&]() -> std::tuple<Node, Node> { + switch (opcode->get().GetId()) { + case OpCode::Id::BFI_IMM_R: + return {GetRegister(instr.gpr39), Immediate(instr.alu.GetSignedImm20_20())}; + default: + UNREACHABLE(); + } + }(); + const Node insert = GetRegister(instr.gpr8); + + const Node offset = + Operation(OperationCode::UBitwiseAnd, NO_PRECISE, packed_shift, Immediate(0xff)); + + Node bits = + Operation(OperationCode::ULogicalShiftRight, NO_PRECISE, packed_shift, Immediate(8)); + bits = Operation(OperationCode::UBitwiseAnd, NO_PRECISE, bits, Immediate(0xff)); + + const Node value = + Operation(OperationCode::UBitfieldInsert, PRECISE, base, insert, offset, bits); + SetRegister(bb, instr.gpr0, value); return pc; } |