cpu spec I had

8 bit CPU, 8 bit IS

4 regs (rA-rD)
r1/r2 refer to registers whos address is given in op

Assembly		Bits

set n - 		0nnnnnnn - Set rA to nnnnnnn
add/and r1 r2 - 	100Ar1r2 - ADD/AND r1 to r2 and store in rD
jmp r1 (<|=|>) - 	1010rrcc - jump to ROM[rA] if rr is cc to 0
-			1011???? - TBD
cp r1 r2 - 		1100r1r2 - copy r1 to r2
- 			1101???? - TBD
rd/wr rd ra - 		111wrdra - Read/write rd to RAM[ra]