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Shader Interpreter: implement SGE

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wheremyfoodat 2023-08-12 23:46:42 +03:00
parent 85c586b3d0
commit ccdf8f7722
2 changed files with 22 additions and 0 deletions
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1
include/PICA/shader.hpp
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@ -159,6 +159,7 @@ class PICAShader {
void mul(u32 instruction);
void rcp(u32 instruction);
void rsq(u32 instruction);
void sge(u32 instruction);
void sgei(u32 instruction);
void slt(u32 instruction);
void slti(u32 instruction);

21
src/core/PICA/shader_interpreter.cpp
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@ -45,6 +45,7 @@ void PICAShader::run() {
case ShaderOpcodes::NOP: break; // Do nothing
case ShaderOpcodes::RCP: rcp(instruction); break;
case ShaderOpcodes::RSQ: rsq(instruction); break;
case ShaderOpcodes::SGE: sge(instruction); break;
case ShaderOpcodes::SGEI: sgei(instruction); break;
case ShaderOpcodes::SLT: slt(instruction); break;
case ShaderOpcodes::SLTI: slti(instruction); break;
@ -517,6 +518,26 @@ void PICAShader::slt(u32 instruction) {
}
}
void PICAShader::sge(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
u32 src1 = getBits<12, 7>(instruction);
const u32 src2 = getBits<7, 5>(instruction); // src2 coming first because PICA moment
const u32 idx = getBits<19, 2>(instruction);
const u32 dest = getBits<21, 5>(instruction);
src1 = getIndexedSource(src1, idx);
vec4f srcVec1 = getSourceSwizzled<1>(src1, operandDescriptor);
vec4f srcVec2 = getSourceSwizzled<2>(src2, operandDescriptor);
auto& destVector = getDest(dest);
u32 componentMask = operandDescriptor & 0xf;
for (int i = 0; i < 4; i++) {
if (componentMask & (1 << i)) {
destVector[3 - i] = srcVec1[3 - i] >= srcVec2[3 - i] ? f24::fromFloat32(1.0) : f24::zero();
}
}
}
void PICAShader::sgei(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
const u32 src1 = getBits<14, 5>(instruction);