On May 18, 1:20pm in "Re: Weekly ramble...", you warbled: ] Forget that. You have finished if and only if you fall off the end ] of the screen.
Oh yeah... stupidity. In fact, that was how I had it originally, but I added that code right at the end because I decided it wouldn't work otherwise... *sigh* ] It doesn't. And neither does inc a. They both set the zero flag though, ] so use that instead. *grin* Oh dear, oh dear, oh dear. I might have to start re-learning z80, the amount of mistakes I make. Suffice it to say that on the ARM increasing a register _does_ affect all the flags... Then again, the only way to increase a register is to add 1, and an add on the Sam _does_ change them :-) Now if you could get inc a to execute in one cycle, you'd have one-up on the ARM systems :) Geoff
