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vertex_shader: Implement SLT/SLTI instructions.
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875bd29766
commit
4ac6c1a3b5
1 changed files with 10 additions and 4 deletions
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@ -120,10 +120,6 @@ static void ProcessShaderCode(VertexShaderState& state) {
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case OpCode::Type::Arithmetic:
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{
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bool is_inverted = 0 != (instr.opcode.Value().GetInfo().subtype & OpCode::Info::SrcInversed);
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// TODO: We don't really support this properly: For instance, the address register
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// offset needs to be applied to SRC2 instead, etc.
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// For now, we just abort in this situation.
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ASSERT_MSG(!is_inverted, "Bad condition...");
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const int address_offset = (instr.common.address_register_index == 0)
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? 0 : state.address_registers[instr.common.address_register_index - 1];
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@ -288,6 +284,16 @@ static void ProcessShaderCode(VertexShaderState& state) {
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break;
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}
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case OpCode::Id::SLT:
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case OpCode::Id::SLTI:
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for (int i = 0; i < 4; ++i) {
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if (!swizzle.DestComponentEnabled(i))
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continue;
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dest[i] = (src1[i] < src2[i]) ? float24::FromFloat32(1.0f) : float24::FromFloat32(0.0f);
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}
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break;
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case OpCode::Id::CMP:
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for (int i = 0; i < 2; ++i) {
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// TODO: Can you restrict to one compare via dest masking?
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