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shader_decode: Partially implement BRA

This commit is contained in:
ReinUsesLisp 2018-12-21 00:11:33 -03:00
parent 4f95dc950e
commit 8215ae942c
1 changed files with 12 additions and 0 deletions
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12
src/video_core/shader/decode/other.cpp
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@ -11,6 +11,7 @@ namespace VideoCommon::Shader {
using Tegra::Shader::Instruction; using Tegra::Shader::Instruction;
using Tegra::Shader::OpCode; using Tegra::Shader::OpCode;
using Tegra::Shader::ConditionCode;
u32 ShaderIR::DecodeOther(BasicBlock& bb, u32 pc) { u32 ShaderIR::DecodeOther(BasicBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]}; const Instruction instr = {program_code[pc]};
@ -45,6 +46,17 @@ u32 ShaderIR::DecodeOther(BasicBlock& bb, u32 pc) {
} }
break; break;
} }
case OpCode::Id::BRA: {
UNIMPLEMENTED_IF_MSG(instr.bra.constant_buffer != 0,
"BRA with constant buffers are not implemented");
const Tegra::Shader::ConditionCode cc = instr.flow_condition_code;
UNIMPLEMENTED_IF(cc != Tegra::Shader::ConditionCode::T);
const u32 target = pc + instr.bra.GetBranchTarget();
bb.push_back(Operation(OperationCode::Bra, Immediate(target)));
break;
}
case OpCode::Id::IPA: { case OpCode::Id::IPA: {
const auto& attribute = instr.attribute.fmt28; const auto& attribute = instr.attribute.fmt28;
const Tegra::Shader::IpaMode input_mode{instr.ipa.interp_mode.Value(), const Tegra::Shader::IpaMode input_mode{instr.ipa.interp_mode.Value(),