From e3fc3459c817398fdc9a878c2e554e4580b1d863 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Mon, 27 Jan 2020 01:14:25 -0300 Subject: shader/arithmetic: Implement FCMP Compares the third operand with zero, then selects between the first and second. --- src/video_core/engines/shader_bytecode.h | 7 +++++++ src/video_core/shader/decode/arithmetic.cpp | 11 ++++++++++- 2 files changed, 17 insertions(+), 1 deletion(-) (limited to 'src/video_core') diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index 6f98bd827..6376b579b 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -1095,6 +1095,11 @@ union Instruction { BitField<55, 1, u64> ftz; } fset; + union { + BitField<47, 1, u64> ftz; + BitField<48, 4, PredCondition> cond; + } fcmp; + union { BitField<49, 1, u64> bf; BitField<35, 3, PredCondition> cond; @@ -1771,6 +1776,7 @@ public: ICMP_R, ICMP_CR, ICMP_IMM, + FCMP_R, MUFU, // Multi-Function Operator RRO_C, // Range Reduction Operator RRO_R, @@ -2074,6 +2080,7 @@ private: INST("0101110100100---", Id::HSETP2_R, Type::HalfSetPredicate, "HSETP2_R"), INST("0111111-0-------", Id::HSETP2_IMM, Type::HalfSetPredicate, "HSETP2_IMM"), INST("0101110100011---", Id::HSET2_R, Type::HalfSet, "HSET2_R"), + INST("010110111010----", Id::FCMP_R, Type::Arithmetic, "FCMP_R"), INST("0101000010000---", Id::MUFU, Type::Arithmetic, "MUFU"), INST("0100110010010---", Id::RRO_C, Type::Arithmetic, "RRO_C"), INST("0101110010010---", Id::RRO_R, Type::Arithmetic, "RRO_R"), diff --git a/src/video_core/shader/decode/arithmetic.cpp b/src/video_core/shader/decode/arithmetic.cpp index fcedd2af6..90240c765 100644 --- a/src/video_core/shader/decode/arithmetic.cpp +++ b/src/video_core/shader/decode/arithmetic.cpp @@ -21,7 +21,7 @@ u32 ShaderIR::DecodeArithmetic(NodeBlock& bb, u32 pc) { Node op_a = GetRegister(instr.gpr8); - Node op_b = [&]() -> Node { + Node op_b = [&] { if (instr.is_b_imm) { return GetImmediate19(instr); } else if (instr.is_b_gpr) { @@ -141,6 +141,15 @@ u32 ShaderIR::DecodeArithmetic(NodeBlock& bb, u32 pc) { SetRegister(bb, instr.gpr0, value); break; } + case OpCode::Id::FCMP_R: { + UNIMPLEMENTED_IF(instr.fcmp.ftz == 0); + Node op_c = GetRegister(instr.gpr39); + Node comp = GetPredicateComparisonFloat(instr.fcmp.cond, std::move(op_c), Immediate(0.0f)); + SetRegister( + bb, instr.gpr0, + Operation(OperationCode::Select, std::move(comp), std::move(op_a), std::move(op_b))); + break; + } case OpCode::Id::RRO_C: case OpCode::Id::RRO_R: case OpCode::Id::RRO_IMM: { -- cgit v1.2.3