> Tom Dunn wrote:
> > sta #180
>
> Replace all "sta #xy" with "lda #xy".
> (sta stores, lda loads)
Heh...I don't know if linguistically it's more intuitive
in German, but "load" (move to active registers from memory)
and "store" (put back in memory from active registers) just
isn't intuitive to me, which function is which...I always
have to glance at elsewhere in my code, and notice that
LDA (often with a constant) usually precedes the STA, and
then I can figure out which one I'm looking for from that.
One other newbie thing to watch out for: when you finally
decide to start using constants (like "CEILING_VALUE" for
5, "FLOOR_VALUE" for 180) MAKE SURE you put a "#" before
the value when you refer to it, ala
CMP #FLOOR_VALUE
and not
CMP FLOOR_VALUE
I burnt more time on that kind of thing than anything else...
you get some *weird* effects when you're loading values from
spots in memories rather than directly as constants.
Also, certain types of compares require clearing out the
carry bit I think, another easy thing to forget about in
your early days.
Good luck!
-Kirk
--
KirkIsrael@xxxxxxxxxxxxx http://kisrael.com
"If you feel it, but it isn't right, don't do it and don't
believe it. We can be better than natural -- we're human."--Penn Jillette
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