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[PICA interpreter] Implement mova

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wheremyfoodat 2022-09-25 15:35:28 +03:00
parent 0aaf1c317d
commit 63ff2ac0de
2 changed files with 21 additions and 1 deletions
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5
include/PICA/shader.hpp
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@ -15,6 +15,7 @@ namespace ShaderOpcodes {
ADD = 0x00,
DP4 = 0x02,
MUL = 0x08,
MOVA = 0x12,
MOV = 0x13,
END = 0x22
};
@ -32,7 +33,8 @@ class PICAShader {
std::array<u32, 4> floatUniformBuffer; // Buffer for temporarily caching float uniform data
std::array<u32, 128> operandDescriptors;
std::array<vec4f, 16> tempRegisters;
std::array<vec4f, 16> tempRegisters; // General purpose registers the shader can use for temp values
OpenGL::Vector<u32, 2> addrRegister; // Address register
ShaderType type;
vec4f getSource(u32 source);
@ -42,6 +44,7 @@ class PICAShader {
void add(u32 instruction);
void dp4(u32 instruction);
void mov(u32 instruction);
void mova(u32 instruction);
void mul(u32 instruction);
// src1, src2 and src3 have different negation & component swizzle bits in the operand descriptor

17
src/core/PICA/shader_interpreter.cpp
View file

@ -12,6 +12,7 @@ void PICAShader::run() {
case ShaderOpcodes::DP4: dp4(instruction); break;
case ShaderOpcodes::END: return; // Stop running shader
case ShaderOpcodes::MOV: mov(instruction); break;
case ShaderOpcodes::MOVA: mova(instruction); break;
case ShaderOpcodes::MUL: mul(instruction); break;
default:Helpers::panic("Unimplemented PICA instruction %08X (Opcode = %02X)", instruction, opcode);
}
@ -98,6 +99,22 @@ void PICAShader::mov(u32 instruction) {
}
}
void PICAShader::mova(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
const u32 src = (instruction >> 12) & 0x7f;
const u32 idx = (instruction >> 19) & 3;
const u32 dest = (instruction >> 21) & 0x1f;
if (idx) Helpers::panic("[PICA] MOVA: idx != 0");
vec4f srcVector = getSourceSwizzled<1>(src, operandDescriptor);
u32 componentMask = operandDescriptor & 0xf;
if (componentMask & 0b1000) // x component
addrRegister.x() = static_cast<u32>(srcVector.x().toFloat32());
if (componentMask & 0b0100) // y component
addrRegister.y() = static_cast<u32>(srcVector.y().toFloat32());
}
void PICAShader::dp4(u32 instruction) {
const u32 operandDescriptor = operandDescriptors[instruction & 0x7f];
const u32 src1 = (instruction >> 12) & 0x7f;