From 0c049e0a2106ff1624dfe4dcbfe8703584863c7c Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Fri, 21 Dec 2018 00:06:13 -0300 Subject: [PATCH] shader_decode: Implement ST_A --- src/video_core/shader/decode/memory.cpp | 30 +++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/src/video_core/shader/decode/memory.cpp b/src/video_core/shader/decode/memory.cpp index 30e2b33a31..aea1a06757 100644 --- a/src/video_core/shader/decode/memory.cpp +++ b/src/video_core/shader/decode/memory.cpp @@ -52,6 +52,36 @@ u32 ShaderIR::DecodeMemory(BasicBlock& bb, u32 pc) { } break; } + case OpCode::Id::ST_A: { + UNIMPLEMENTED_IF_MSG(instr.gpr8.Value() != Register::ZeroIndex, + "Indirect attribute loads are not supported"); + UNIMPLEMENTED_IF_MSG((instr.attribute.fmt20.immediate.Value() % sizeof(u32)) != 0, + "Unaligned attribute loads are not supported"); + + u64 next_element = instr.attribute.fmt20.element; + auto next_index = static_cast(instr.attribute.fmt20.index.Value()); + + const auto StoreNextElement = [&](u32 reg_offset) { + const auto dest = GetOutputAttribute(static_cast(next_index), + next_element, GetRegister(instr.gpr39)); + const auto src = GetRegister(instr.gpr0.Value() + reg_offset); + + bb.push_back(Operation(OperationCode::Assign, dest, src)); + + // Load the next attribute element into the following register. If the element + // to load goes beyond the vec4 size, load the first element of the next + // attribute. + next_element = (next_element + 1) % 4; + next_index = next_index + (next_element == 0 ? 1 : 0); + }; + + const u32 num_words = static_cast(instr.attribute.fmt20.size.Value()) + 1; + for (u32 reg_offset = 0; reg_offset < num_words; ++reg_offset) { + StoreNextElement(reg_offset); + } + + break; + } default: UNIMPLEMENTED_MSG("Unhandled memory instruction: {}", opcode->get().GetName()); }