Just working out ideas here. This is so we can work out the set of
operations available.
// Operations / opcodes
enum {
ADD, SUB, MULU, MULS, AND, OR, XOR, FPADD, FPMUL, CMP, FPCMP,
SHL, ASR, LSR,
JSR, JMP, JCC};
// A "decoded" instruction
struct Instruction {
unsigned char opcode;
unsigned char rs, rd, rt;
int immed;
// We'll put a function pointer here eventually
};
// A shader engine vertical pipeline, functional model
class Pipeline {
public:
Instruction *program;
int PC;
int regfile[256];
Pipeline();
~Pipeline();
void advanceClock(); // Execute another instruction
};
--
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Open Graphics Project
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