mirror of
https://github.com/cc65/cc65.git
synced 2024-08-19 17:29:37 +00:00
65 lines
2.1 KiB
PHP
65 lines
2.1 KiB
PHP
|
|
;-----------------------------------------------------------------------------
|
|
; Zero page stuff
|
|
|
|
WNDLFT := $20 ; Text window left
|
|
WNDWDTH := $21 ; Text window width
|
|
WNDTOP := $22 ; Text window top
|
|
WNDBTM := $23 ; Text window bottom+1
|
|
CH := $24 ; Cursor horizontal position
|
|
CV := $25 ; Cursor vertical position
|
|
BASL := $28 ; Text base address low
|
|
BASH := $29 ; Text base address high
|
|
INVFLG := $32 ; Normal/inverse(/flash)
|
|
PROMPT := $33 ; Used by GETLN
|
|
RNDL := $4E ; Random counter low
|
|
RNDH := $4F ; Random counter high
|
|
HIMEM := $73 ; Highest available memory address+1
|
|
|
|
;-----------------------------------------------------------------------------
|
|
; Vectors
|
|
|
|
DOSWARM := $03D0 ; DOS warmstart vector
|
|
BRKVec := $03F0 ; Break vector
|
|
SOFTEV := $03F2 ; Vector for warm start
|
|
PWREDUP := $03F4 ; This must be = EOR #$A5 of SOFTEV+1
|
|
|
|
;-----------------------------------------------------------------------------
|
|
; Hardware
|
|
|
|
; Keyboard input
|
|
KBD := $C000 ; Read keyboard
|
|
KBDSTRB := $C010 ; Clear keyboard strobe
|
|
|
|
; 80 column video switches
|
|
CLR80COL:= $C000 ; Disable 80 column store
|
|
SET80COL:= $C001 ; Enable 80 column store
|
|
RD80COL := $C018 ; >127 if 80 column store enabled
|
|
RD80VID := $C01F ; >127 if 80 column video enabled
|
|
|
|
; Character set switches
|
|
CLRALTCHAR := $C00E ; Normal Apple II char set
|
|
SETALTCHAR := $C00F ; Norm/inv LC, no flash
|
|
ALTCHARSET := $C01E ; >127 if alt charset switched in
|
|
|
|
; Language card switches
|
|
RDLCBNK2 := $C011 ; >127 if LC bank 2 in use
|
|
RDLCRAM := $C012 ; >127 if LC is read enabled
|
|
ROMIN := $C081 ; Swap in D000-FFFF ROM
|
|
LCBANK2 := $C083 ; Swap in LC bank 2
|
|
LCBANK1 := $C08B ; Swap in LC bank 1
|
|
|
|
; Video mode switches
|
|
TXTCLR := $C050 ; Display graphics
|
|
TXTSET := $C051 ; Display text
|
|
MIXCLR := $C052 ; Disable 4 lines of text
|
|
MIXSET := $C053 ; Enable 4 lines of text
|
|
LOWSCR := $C054 ; Page 1
|
|
HISCR := $C055 ; Page 2
|
|
LORES := $C056 ; Lores graphics
|
|
HIRES := $C057 ; Hires graphics
|
|
|
|
; Game controller
|
|
BUTN0 := $C061 ; Open-Apple Key
|
|
BUTN1 := $C062 ; Closed-Apple Key
|