home *** CD-ROM | disk | FTP | other *** search
/ The Atari Compendium / The Atari Compendium (Toad Computers) (1994).iso / book / graphics / b20.gif < prev    next >
Graphics Interchange Format  |  1996-01-09  |  17KB  |  551x689  |  4-bit (3 colors)
Labels: text | screenshot | parallel | line | diagram | font | number | receipt | black and white
OCR: B.20 - Memory Map S M M T F T e T e T a g a 3 S n T 3 0 Location(s ) Size Type Meaning 0x00FF8212 - N/A Unassigned 0x00FF823F 0x00FF8240 WORD VO ST/e Compatible Palette Register #0: ST layout is as follows: XXXXXRRR XGGG XBBB STe layout is as follows: XXXX RRRR GGGG BBBB For compatibility, ST e bit arrangement per nibble is 0-3-2-1. These registers are simulated for compatibility on newer model machines. 0x00FF8242 WORD ST/e Compatible Palette Register #1 0x00FF8244 WORD ST/e Compatible Palette Register #2 0x00FF8246 WORD ST/e Compatible Palette Register #3 0x00FF8248 WORD ST/e Compatible Palette Register #4 0x00FF824A WORD VO ST/e Compatible Palette Register #5 0x00FF824C WORD VO ST/e Compatible Palette Register #6 0x00FF824E WORD ST/e Compatible Palette Register #7 0x00FF8250 WORD VO ST/e Compatible Palette Register #8 0x00FF8252 WORD ST/e Compatible Palette Register #9 0x00FF8254 WORD ST/e Compatible Palette Register #10 0x00FF8256 WORD ST/e Compatible Palette Register #11 0x00FF8258 WORD ST/e Compatible Palette Register #12 0x00F F825.A WORD ST/e Compatible Palette Register #13 0x00F F825C WORD ST/e Compatible Palette Register #14 0x00FF825E WORD VO ST/e Compatible Palette Register #15 0x00FF8260 EB ST Video Shifter Mode as follows: Bit 7 Bit y 00 = 320x200, 4 plane 01 = 640×200, 2 plane 10 = 640x400, 1 plane 11 = Reserved