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Subject: Re: [stella] 13 chars C64-style From: "Thomas Jentzsch" <tjentzsch@xxxxxx> Date: Tue, 9 Dec 2003 17:19:58 +0100 |
Andrew wrote::
> I haven't done any VCS stuff for a while so I thought playing with this
> might be a good way to get back into things.. besides which, I couldn't
> resist giving it a try ;)
Very good!
> The rest of the code is basically left alone, I didn't attempt to roll
> up the rendering code.. well I did but I couldn't make it work so I
> left it alone for now ;)
You can save 5+6*3 = 23 cycles by not using 'count' and checking the
stackpointer ('chara' etc. must start at $80 then!) instead.
And 6*2 = 12 cycles by storing odd and even letters in different tables.
Still not enough for a whole line, but maybe someone else finds
some more cycles. :-)
Have?fun!
Thomas
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