diff options
| -rw-r--r-- | src/video_core/shader/decode/bfe.cpp | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/src/video_core/shader/decode/bfe.cpp b/src/video_core/shader/decode/bfe.cpp index ffd904c54..6532a3bce 100644 --- a/src/video_core/shader/decode/bfe.cpp +++ b/src/video_core/shader/decode/bfe.cpp @@ -16,7 +16,31 @@ u32 ShaderIR::DecodeBfe(BasicBlock& bb, u32 pc) { const Instruction instr = {program_code[pc]}; const auto opcode = OpCode::Decode(instr); - UNIMPLEMENTED(); + UNIMPLEMENTED_IF(instr.bfe.negate_b); + + Node op_a = GetRegister(instr.gpr8); + op_a = GetOperandAbsNegInteger(op_a, false, instr.bfe.negate_a, false); + + switch (opcode->get().GetId()) { + case OpCode::Id::BFE_IMM: { + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in BFE is not implemented"); + + const Node inner_shift_imm = Immediate(static_cast<u32>(instr.bfe.GetLeftShiftValue())); + const Node outer_shift_imm = + Immediate(static_cast<u32>(instr.bfe.GetLeftShiftValue() + instr.bfe.shift_position)); + + const Node inner_shift = + Operation(OperationCode::ILogicalShiftLeft, NO_PRECISE, op_a, inner_shift_imm); + const Node outer_shift = + Operation(OperationCode::ILogicalShiftRight, NO_PRECISE, inner_shift, outer_shift_imm); + + SetRegister(bb, instr.gpr0, outer_shift); + break; + } + default: + UNIMPLEMENTED_MSG("Unhandled BFE instruction: {}", opcode->get().GetName()); + } return pc; } |