mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-09-10 08:54:51 +00:00
a8ab24004d
need to change a bunch to make this work Now load at $4000 as was too big to fit between $1000 and $2000 also turns out our lz4 code was writing past the end, which you notice when you have important code right after the end of HGR1 |
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| .. | ||
| images | ||
| apple_40_96.inc | ||
| c64_opener.s | ||
| c64_updated.png | ||
| c64.png | ||
| delay_a.s | ||
| falling_apple.s | ||
| fireworks.s | ||
| fw_background.inc | ||
| fw_state_machine.s | ||
| fw.s | ||
| gr_copy.s | ||
| gr_hline.s | ||
| gr_offsets.s | ||
| hardware.inc | ||
| hgr.s | ||
| lz4_decode.s | ||
| Makefile | ||
| megademo.dsk | ||
| megademo.s | ||
| move_letters.s | ||
| random16.s | ||
| README | ||
| starring_1.png | ||
| starring_2.png | ||
| starring_3.png | ||
| vapor_lock.s | ||
| wait_keypress.s | ||
| zp.inc | ||
Memory Map: $0000-$0100 = ZERO PAGE $0100-$0200 = STACK $0400-$0800 = TEXT/GR PAGE0 $0800-$0C00 = TEXT/GR PAGE1 $0C00-$0fff = we use this as TEXT/GR offscreen buffer $1000-$1fff = 4k free $2000-$3fFF = HGR1 page ; note we never use HGR2 ($4000-$6000) $4000-$9600 = roughly 20k(?) $9600-$BFFF = DOS3.3 $C000-$FFFF = peripherals/ROM