doggie said:
thanx but that doesn't cover on wat i want.. way technical and doesn't contain a list with the opcodes.
depending on what you are planing on doing you may be begging for this information later
you have the R4300i and then you have the custom opcodes for the N64 reality engine and sound fun. (gee there is a pattern for this.. SEE GAME CUBE!).
The reason Nintendo picked the MIPS is because it allows for a lot of customization of the opcodes easily. That's what they Playstation was a MIPS as well (See GTE code).
Anyhow, I believe the one thing you'll need for graphics is a header file that defines how the opcodes are constructed for rendering (lots of fun there).
Cyb - also grab SPIM off the internet it's a MIPS R3000 simulator (maybe R4000 too).