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?

>>42
Tricks like using instructions that happen to have no side-effects is not a good idea in the long run. When you're trying to get more performace later on these things invariably cause problems. For instance MIPS32 added a dedicated NOP instruction.

>>43
Fixed-width instruction sets usually allow loading only small immediates, and use PC-relative addressing and constant pools for larger values. See SuperH for one 32-bit instruction set using 16-bit fixed-width instructions.