mirror of
https://github.com/cc65/cc65.git
synced 2024-12-30 20:29:25 +00:00
112 lines
3.2 KiB
PHP
112 lines
3.2 KiB
PHP
;
|
|
; Oric Atmos definitions
|
|
; BASIC 1.1 addresses
|
|
;
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; Constants
|
|
|
|
SCREEN_XSIZE = 40 ; screen columns
|
|
SCREEN_YSIZE = 28 ; screen rows
|
|
|
|
FUNCTKEY = $A5
|
|
|
|
FNAME_LEN = 16 ; maximum length of file-name
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; Zero page
|
|
|
|
SCRPTR := $12
|
|
BASIC_BUF := $35
|
|
CHARGOT := $E8
|
|
TXTPTR := $E9
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; Low memory
|
|
|
|
MODEKEY := $0209
|
|
CAPSLOCK := $020C ; $7F = not locked, $FF = locked
|
|
PATTERN := $0213
|
|
IRQVec := $0245 ; "fast" interrupt vector
|
|
JOINFLAG := $025A ; 0 = don't joiu, $4A = join BASIC programs
|
|
VERIFYFLAG := $025B ; 0 = load, 1 = verify
|
|
CURS_Y := $0268
|
|
CURS_X := $0269
|
|
STATUS := $026A
|
|
BACKGRND := $026B
|
|
FOREGRND := $026C
|
|
TIMER3 := $0276
|
|
CFILE_NAME := $027F
|
|
CFOUND_NAME := $0293
|
|
FILESTART := $02A9
|
|
FILEEND := $02AB
|
|
AUTORUN := $02AD ; $00 = only load, $C7 = autorun
|
|
LANGFLAG := $02AE ; $00 = BASIC, $80 = machine code
|
|
LOADERR := $02B1
|
|
KEYBUF := $02DF
|
|
PARMERR := $02E0
|
|
PARAM1 := $02E1 ; & $02E2
|
|
PARAM2 := $02E3 ; & $02E4
|
|
PARAM3 := $02E5 ; & $02E6
|
|
BANGVEC := $02F5
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; I/O locations
|
|
|
|
; 6522
|
|
.struct VIA ; Versatile Interface Adapter
|
|
.res $0300
|
|
PRB .byte ; Port Register B
|
|
PRA .byte ; Port Register A
|
|
DDRB .byte ; Data Direction Register B
|
|
DDRA .byte ; Data Direction Register A
|
|
T1 .word ; Timer 1
|
|
T1L .word ; Timer 1 Latch
|
|
T2 .word ; Timer 2
|
|
SR .byte ; Shift Register
|
|
ACR .byte ; Auxiliary Control Register
|
|
PCR .byte ; Peripheral Control Register
|
|
IFR .byte ; Interrupt Flags Register
|
|
IER .byte ; Interrupt Enable Register
|
|
PRA2 .byte ; Port Register A without handshaking
|
|
.endstruct
|
|
|
|
; 6551
|
|
.struct ACIA ; Asynchronous Communications Interface Adapter
|
|
.res $031C
|
|
DATA .byte
|
|
STATUS .byte
|
|
CMD .byte ; Command register
|
|
CTRL .byte ; Control register
|
|
.endstruct
|
|
|
|
SCREEN := $BB80
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; ROM entries
|
|
|
|
GETLINE := $C592
|
|
TEXT := $EC21
|
|
HIRES := $EC33
|
|
CURSET := $F0C8
|
|
CURMOV := $F0FD
|
|
DRAW := $F110
|
|
CHAR := $F12D
|
|
POINT := $F1C8
|
|
PAPER := $F204
|
|
INK := $F210
|
|
PRINT := $F77C
|
|
|
|
; Sound Effects
|
|
PING := $FA9F
|
|
SHOOT := $FAB5
|
|
EXPLODE := $FACB
|
|
ZAP := $FAE1
|
|
TICK := $FB14
|
|
TOCK := $FB2A
|