cc65/asminc/apple2.inc

88 lines
3.2 KiB
PHP

;-----------------------------------------------------------------------------
; Zero page
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
CURLIN := $75 ; Current line number being executed
;-----------------------------------------------------------------------------
; 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
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
CLRALTCHAR := $C00E ; Normal Apple II char set
SETALTCHAR := $C00F ; Norm/inv LC, no flash
ALTCHARSET := $C01E ; >127 if alt charset switched in
; Language card
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
; Vertical blanking
RDVBLBAR := $C019 ; >127 if not vertical blanking
RDVBLMSK := $C041 ; >127 if VBL interrupts enabled
DISVBL := $C05A ; Disable VBL interrupts
ENVBL := $C05B ; Enable VBL interrupts
; Video mode
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
DHIRESON := $C05E ; Enable double-width graphics
DHIRESOFF := $C05F ; Disable double-width graphics
; Game controller
TAPEIN := $C060 ; Read casette input / Switch input 3
BUTN0 := $C061 ; Switch input 0 / Open-Apple key
BUTN1 := $C062 ; Switch input 1 / Closed-Apple key
BUTN2 := $C063 ; Switch input 2 / Shift key
PADDL0 := $C064 ; Analog input 0
PADDL1 := $C065 ; Analog input 1
PADDL2 := $C066 ; Analog input 2
PADDL3 := $C067 ; Analog input 3
PTRIG := $C070 ; Analog input reset
; Input/Output Unit
IOUDISON := $C07E ; Disable IOU
IOUDISOFF := $C07F ; Enable IOU
; Control Your Apple
CYAREG := $C036 ; Bits 0-3=disk detect 4=shadow all banks 7=fast