4cade/src/constants.a

34 lines
955 B
Plaintext
Raw Normal View History

2018-08-23 20:02:48 +00:00
;license:MIT
;(c) 2018 by 4am
;
2018-08-26 19:33:32 +00:00
; soft switches
STOREOFF = $C000 ; write to use following 4 flags:
2018-08-26 19:33:32 +00:00
READMAINMEM = $C002 ; write to R main mem
READAUXMEM = $C003 ; write to R aux mem
WRITEMAINMEM = $C004 ; write to W main mem
WRITEAUXMEM = $C005 ; write to W aux mem
;
2018-08-26 19:33:32 +00:00
SLOT3STATUS = $C017 ; read high bit only
; ROM
MACHINEID = $FBB3
2018-08-23 20:02:48 +00:00
; zero page
2018-08-26 19:33:32 +00:00
PARAM = $00 ; used by PARAMS_ON_STACK macro, so basically everywhere
PTR = $02
SRC = $04
DEST = $06
SAVE = $08
MachineStatus =$F0 ; bit 7 = 1 if machine has joystick
2018-08-29 19:27:30 +00:00
; bit 6 = 1 if machine has 128K
; $FE ; used by ParseGamesList
; $FF ; used by ParseGamesList
; main memory
2018-09-13 13:53:04 +00:00
gPathname = $1F00 ; used by ResetPath/AddToPath
gKeyLen = $1F00 ; used by ParseGamesList
gKey = $1F01
gValLen = $1F80
gVal = $1F81