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https://github.com/a2-4am/4cade.git
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36 lines
1.3 KiB
Plaintext
36 lines
1.3 KiB
Plaintext
;license:MIT
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;(c) 2018 by 4am
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;
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; soft switches
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STOREOFF = $C000 ; write to use following flags:
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READMAINMEM = $C002 ; write to R main mem
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READAUXMEM = $C003 ; write to R aux mem
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WRITEMAINMEM = $C004 ; write to W main mem
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WRITEAUXMEM = $C005 ; write to W aux mem
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SETMAINZP = $C008 ; write to R/W main mem zero page
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SETAUXZP = $C009 ; write to R/W aux mem zero page
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AUXMEMSTATUS = $C013 ; read high bit only
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AUXZPSTATUS = $C016 ; read high bit only
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SLOT3STATUS = $C017 ; read high bit only
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LCBANK2READ = $C080 ; read once to R RAM bank 2 / no write
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ROMIN = $C081 ; read twice to R ROM / W RAM bank 2
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ROMONLY = $C082 ; read once to R ROM / no write
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;LCBANK2 = $C083 ; read twice to R/W RAM bank 2
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LCBANK1READ = $C088 ; read once to R RAM bank 1 / no write
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LCBANK1WRITE = $C089 ; read twice to R ROM / W RAM bank 1
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LCBANK1 = $C08B ; read twice to R/W RAM bank 1
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; ROM
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MACHINEID = $FBB3
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; zero page
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PARAM = $00 ; used by PARAMS_ON_STACK macro, so basically everywhere
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PTR = $02
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SRC = $04
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DEST = $06
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SAVE = $08
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MachineStatus =$FF ; bit 7 = 1 if machine has joystick
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; bit 6 = 1 if machine has 128K
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