Hallo allemaal, I'm playing with an idea. Both my 1541IDE projects are going fine; the D64- image version and the 16 MB with subdirectories. The ide is to extend the D64 version by maintaining the floppy drive. My D64 version doesn't need any GCR en/decoding and therefore doesn't need the area $01BB-$01FF. This enabled me for using this area for my own purposes. It also enabled my to make a bigger stack. Originally the stack starts at $0145. Why here and why not $01B0 for example? Is the area $0146- $01BA used by other things I don't know of? My idea was to move this GCR area to $0800, in the RAM I piggybacked on top of the original one. As there are only two variables used to address this area, A_0100 and A_01BB, I thought this was a quick win by letting them point to $0800 and $08BB. But I was wrong: 23,READ ERROR,18,00 speaks for it self. I must have missed something but where? Info is very welcome !!! -- ___ / __|__ / / |_/ Groetjes, Ruud Baltissen \ \__|_\ \___| http://Ruud.C64.org Message was sent through the cbm-hackers mailing listReceived on 2009-04-20 19:41:09
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