RISC

/prog/, I'm working on a RISC instruction set that is more RISC than any RISC out there. I've devised an instruction format, plus fifteen core instructions that should suffice for any programming out there. The instruction format, instruction forms, and instructions can be found here:

http://jsbin.com/ekuwap

Any comments or suggestions?

>>100
Not really. That's hardly "complicated", and multibyte instructions/multiple single-byte ones could be easily decoded in a single clock if the databus is wide enough.

Look at how the x86 decoder works. It can determine the instruction length in 1 cycle, and do it for multiple instructions at once. i7s are not "slow as fuck" either.

>>101
You're not writing software here.

>>102
If you can determine the total number of instruction bytes from the first byte then sure. This was one of the limiting factors of the VAX. Intel also spends a lot of resources hand-optimizing transistors. It's not really babby's first CPU material.