From cf4a08d95098370868fb631a0436f2a4968df9af Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Tue, 18 Dec 2018 03:16:09 -0300 Subject: shader_decode: Implement HADD2_IMM and HMUL2_IMM --- .../shader/decode/arithmetic_half_immediate.cpp | 29 +++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) (limited to 'src/video_core/shader/decode') diff --git a/src/video_core/shader/decode/arithmetic_half_immediate.cpp b/src/video_core/shader/decode/arithmetic_half_immediate.cpp index 8d8a2dad9..5c280a1a6 100644 --- a/src/video_core/shader/decode/arithmetic_half_immediate.cpp +++ b/src/video_core/shader/decode/arithmetic_half_immediate.cpp @@ -16,7 +16,34 @@ u32 ShaderIR::DecodeArithmeticHalfImmediate(BasicBlock& bb, u32 pc) { const Instruction instr = {program_code[pc]}; const auto opcode = OpCode::Decode(instr); - UNIMPLEMENTED(); + if (opcode->get().GetId() == OpCode::Id::HADD2_IMM) { + UNIMPLEMENTED_IF(instr.alu_half_imm.ftz != 0); + } else { + UNIMPLEMENTED_IF(instr.alu_half_imm.precision != Tegra::Shader::HalfPrecision::None); + } + UNIMPLEMENTED_IF_MSG(instr.alu_half_imm.saturate != 0, + "Half float immediate saturation not implemented"); + + Node op_a = GetRegister(instr.gpr8); + op_a = GetOperandAbsNegHalf(op_a, instr.alu_half_imm.abs_a, instr.alu_half_imm.negate_a); + + const Node op_b = UnpackHalfImmediate(instr, true); + + Node value = [&]() { + MetaHalfArithmetic meta{true, {instr.alu_half_imm.type_a}}; + switch (opcode->get().GetId()) { + case OpCode::Id::HADD2_IMM: + return Operation(OperationCode::HAdd, meta, op_a, op_b); + case OpCode::Id::HMUL2_IMM: + return Operation(OperationCode::HMul, meta, op_a, op_b); + default: + UNREACHABLE(); + return Immediate(0); + } + }(); + value = HalfMerge(GetRegister(instr.gpr0), value, instr.alu_half_imm.merge); + + SetRegister(bb, instr.gpr0, value); return pc; } -- cgit v1.2.3