Hi Mark, > C64 is organized in character-sized blocks: > > AAAAAAAAIIIIIIII > BBBBBBBBJJJJJJJJ > CCCCCCCCKKKKKKKK > DDDDDDDDLLLLLLLL > EEEEEEEEMMMMMMMM > FFFFFFFFNNNNNNNN > GGGGGGGGOOOOOOOO > HHHHHHHHPPPPPPPP > aaaaaaaaiiiiiiii > > If the A-pixels are in location $0400, then the B-pixels are in $0401, the > C-pixels in $0402, ... and the I-pixels in $0409. Assuming the standard > 320x200 resolution, the a-pixels are in $0428 and the i-pixels in $0430. So > given an arbitrary point (x,y) and its location (say byte B bit b), you > can't assume anything about the location of any of its neighbor pixels > without special-casing on both x mod 8 and y mod 8. Thanks for the very compact yet complete-enough-to-get-the-point description :-)) Best, Oliver ---------------------------------------------------------------------- To unsubscribe from the list send mail to majordomo@musoftware.de with the string "unsubscribe cc65" in the body(!) of the mail.Received on Mon Nov 2 16:08:59 2009
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