RSAC-16 Instruction Set

[Jallen]

I've been working on a RiSC style 16 bit IS for use in my next CPU build. It's a modified version of Nickster's CSC-16. I am trying to decide what sort of instructions I should include in the 2 empty OP codes and also I'm looking for another branch condition to include. This IS is intended to run on a 16 bit CPU with potentially either Von Neumann or Modified Harvard architecture and I was wondering if there were any particular instructions that would be important to include. I would be grateful for any sugestions.

A: Write Reg
B: Read Reg 1
C: Read Reg 2



RSAC stands for Reduced Stonechypher-Allen Computing (sorry Nickster if I misspelled that )

[Dcentrics]

yey more stuff i will never try to read

[Jallen]

but..... but.... colours :S

[m477_]

You could include an interrupt input on the CPU and have an instruction that manually calls it.

[Nickster258]

Stonecipher* But yes, I like it.