From faadae5814683d8d9252bdb6cafbdb07ea8619e4 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Mon, 17 Dec 2018 17:30:33 -0300 Subject: shader_decode: Implement ISETP --- .../shader/decode/integer_set_predicate.cpp | 31 +++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) (limited to 'src/video_core') diff --git a/src/video_core/shader/decode/integer_set_predicate.cpp b/src/video_core/shader/decode/integer_set_predicate.cpp index 10975c394..d76b8018c 100644 --- a/src/video_core/shader/decode/integer_set_predicate.cpp +++ b/src/video_core/shader/decode/integer_set_predicate.cpp @@ -11,12 +11,41 @@ namespace VideoCommon::Shader { using Tegra::Shader::Instruction; using Tegra::Shader::OpCode; +using Tegra::Shader::Pred; u32 ShaderIR::DecodeIntegerSetPredicate(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); + } + }(); + + // We can't use the constant predicate as destination. + ASSERT(instr.isetp.pred3 != static_cast(Pred::UnusedIndex)); + + const Node second_pred = GetPredicate(instr.isetp.pred39, instr.isetp.neg_pred != 0); + const Node predicate = + GetPredicateComparisonInteger(instr.isetp.cond, instr.isetp.is_signed, op_a, op_b); + + // Set the primary predicate to the result of Predicate OP SecondPredicate + const OperationCode combiner = GetPredicateCombiner(instr.isetp.op); + const Node value = Operation(combiner, predicate, second_pred); + SetPredicate(bb, instr.isetp.pred3, value); + + if (instr.isetp.pred0 != static_cast(Pred::UnusedIndex)) { + // Set the secondary predicate to the result of !Predicate OP SecondPredicate, if enabled + const Node negated_pred = Operation(OperationCode::LogicalNegate, predicate); + SetPredicate(bb, instr.isetp.pred0, Operation(combiner, negated_pred, second_pred)); + } return pc; } -- cgit v1.2.3