diff options
| -rw-r--r-- | src/video_core/shader/decode/float_set_predicate.cpp | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/src/video_core/shader/decode/float_set_predicate.cpp b/src/video_core/shader/decode/float_set_predicate.cpp index 1dbe34353..5dd085fea 100644 --- a/src/video_core/shader/decode/float_set_predicate.cpp +++ b/src/video_core/shader/decode/float_set_predicate.cpp @@ -11,12 +11,44 @@ namespace VideoCommon::Shader { using Tegra::Shader::Instruction; using Tegra::Shader::OpCode; +using Tegra::Shader::Pred; u32 ShaderIR::DecodeFloatSetPredicate(BasicBlock& bb, u32 pc) { const Instruction instr = {program_code[pc]}; const auto opcode = OpCode::Decode(instr); - UNIMPLEMENTED(); + const Node op_a = GetOperandAbsNegFloat(GetRegister(instr.gpr8), instr.fsetp.abs_a != 0, + instr.fsetp.neg_a != 0); + Node op_b = [&]() { + if (instr.is_b_imm) { + return GetImmediate19(instr); + } else if (instr.is_b_gpr) { + return GetRegister(instr.gpr20); + } else { + return GetConstBuffer(instr.cbuf34.index, instr.cbuf34.offset); + } + }(); + op_b = GetOperandAbsNegFloat(op_b, instr.fsetp.abs_b, false); + + // We can't use the constant predicate as destination. + ASSERT(instr.fsetp.pred3 != static_cast<u64>(Pred::UnusedIndex)); + + const Node predicate = GetPredicateComparisonFloat(instr.fsetp.cond, op_a, op_b); + const Node second_pred = GetPredicate(instr.fsetp.pred39, instr.fsetp.neg_pred != 0); + + const OperationCode combiner = GetPredicateCombiner(instr.fsetp.op); + const Node value = Operation(combiner, predicate, second_pred); + + // Set the primary predicate to the result of Predicate OP SecondPredicate + SetPredicate(bb, instr.fsetp.pred3, value); + + if (instr.fsetp.pred0 != static_cast<u64>(Pred::UnusedIndex)) { + // Set the secondary predicate to the result of !Predicate OP SecondPredicate, + // if enabled + const Node negated_pred = Operation(OperationCode::LogicalNegate, predicate); + const Node second_value = Operation(combiner, negated_pred, second_pred); + SetPredicate(bb, instr.fsetp.pred0, second_value); + } return pc; } |