Subject: Re: [stella] how much memory From: "Andrew Davie" <atari2600@xxxxxxxxxxxxx> Date: Tue, 24 Feb 2004 18:29:15 +1100 |
> How much of the 128 bytes is it safe to use? It's safe to use 128 bytes less 2 * number of subroutine calls you've made at any one time (the return address is pushed onto the stack for each call you make, and removed when you return) less number of bytes each of those subroutines push onto the stack, if you do that. Typically, modern programmers seem to reserve 2-4 bytes for subroutine calls (ie: allow nesting of up to 2 levels) and the rest is free for use. > Specifically, Andrew Davie's horizontal positioning routine > seems to be doing some odd stuff. That wouldn't surprise me :) > I guess I'll have to start actually using single bit methodolgy > for all my damn booleanvariables... Don't forget, overlays are a good option for saving memory, too. Cheers A ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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