From ccb71bece9e6e6c9ceabc0826624f645c5140c53 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Fri, 21 Dec 2018 02:22:18 -0300 Subject: shader_decode: Implement IADD --- .../shader/decode/arithmetic_integer.cpp | 29 +++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) (limited to 'src/video_core/shader/decode/arithmetic_integer.cpp') diff --git a/src/video_core/shader/decode/arithmetic_integer.cpp b/src/video_core/shader/decode/arithmetic_integer.cpp index 12c64e97a..47b27ac5b 100644 --- a/src/video_core/shader/decode/arithmetic_integer.cpp +++ b/src/video_core/shader/decode/arithmetic_integer.cpp @@ -16,7 +16,34 @@ u32 ShaderIR::DecodeArithmeticInteger(BasicBlock& bb, u32 pc) { const Instruction instr = {program_code[pc]}; const auto opcode = OpCode::Decode(instr); - UNIMPLEMENTED(); + Node op_a = GetRegister(instr.gpr8); + 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); + } + }(); + + switch (opcode->get().GetId()) { + case OpCode::Id::IADD_C: + case OpCode::Id::IADD_R: + case OpCode::Id::IADD_IMM: { + UNIMPLEMENTED_IF_MSG(instr.generates_cc, + "Condition codes generation in IADD is not implemented"); + UNIMPLEMENTED_IF_MSG(instr.alu.saturate_d, "IADD saturation not implemented"); + + op_a = GetOperandAbsNegInteger(op_a, false, instr.alu_integer.negate_a, true); + op_b = GetOperandAbsNegInteger(op_b, false, instr.alu_integer.negate_b, true); + + SetRegister(bb, instr.gpr0, Operation(OperationCode::IAdd, PRECISE, op_a, op_b)); + break; + } + default: + UNIMPLEMENTED_MSG("Unhandled ArithmeticInteger instruction: {}", opcode->get().GetName()); + } return pc; } -- cgit v1.2.3