Final Cartridge
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Revision as of 01:09, 19 April 2010 by Count Zero (talk | contribs)
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Work is still in progress here!
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Wonder where this is coming from: vice?
- here is another doc: http://www.zimmers.net/anonftp/pub/cbm/documents/chipdata/Final%20Cartridge%20III%20Internals.txt (equally wrong)
$DFFF/57343: FC3-I/O-Register Read: Depends on the last value written: +-------------+-----------------------------------------------------+ | Bit 7 was 1 | value = $FF | | Bit 7 was 0 | value = ((last value-1) and 2)/2*$FF | +-------------+-----------------------------------------------------+ Write: +----------+--------------------------------------------------------+ | Bit 7 | 1 = always show 16KB of Bank 0 (for Reset-routine) | | Bit 6 | unused (usually set to 1) | | Bits 5+4 | 00 = turn on all 16 KB of FC3 ROM | | | 01 = start Freezer immediately | | | 10 = turn on first 8 KB of FC3 ROM | | | 11 = turn off FC3 ROM | | Bits 3+2 | unused (usually set to 0) | | Bits 1+0 | number of bank to show at $8000 | +----------+--------------------------------------------------------+ Bank 0: BASIC, Monitor, Disk-Turbo Bank 1: Notepad, BASIC (Menu Bar) Bank 2: Desktop, Freezer/Print Bank 3: Freezer, Compression
