On 09-Oct-98, Joe Wingbermuehle wrote: >tst on the x86 is an and instruction that doesn't change any registers but >the flag register (like cp is to sub). Not that tst does anything on the z80 >:P it is only for the z180! >Joe Wingbermuehle >http://www.usmo.com/~joewing/ yeah, that makes sense. Linus