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cc65/libsrc/plus4/plus4.inc

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;
; Plus/4 generic definitions.
;
; ---------------------------------------------------------------------------
; Zero page, Commodore stuff
TMPPTR = $22 ; Temporary ptr used by BASIC
ST = $90 ; IEC status byte
TIME = $A3 ; 60HZ clock
FNAM_LEN = $AB ; Length of filename
LFN = $AC ; Logical file number
SECADR = $AD ; Secondary address
DEVNUM = $AE ; Device number
FNAM_ADR = $AF ; Pointer to filename for OPEN
KEY_COUNT = $EF ; Number of keys in input buffer
RVS = $C2 ; Reverse flag
CURS_X = $CA ; Cursor column
CURS_Y = $CD ; Cursor row
SCREEN_PTR = $C8 ; Pointer to current char in text screen
CRAM_PTR = $EA ; Pointer to current char in color RAM
INBUF = $25E ; BASIC Input buffer
CHARCOLOR = $53B
FKEY_COUNT = $55D ; Characters for function key
FKEY_SPACE = $55F ; Function key definitions
FKEY_ORIG = $F3D2 ; Original definitions
; ---------------------------------------------------------------------------
; Kernal routines
; Direct entries
CLRSCR = $D88B
KBDREAD = $D8C1
; ---------------------------------------------------------------------------
; Vector and other locations
IRQVec = $0314
BRKVec = $0316
NMIVec = $0318
; ---------------------------------------------------------------------------
; Screen size
XSIZE = 40
YSIZE = 25
; ---------------------------------------------------------------------------
; I/O
TED_T1LO = $FF00
TED_T1HI = $FF01
TED_T2LO = $FF02
TED_T2HI = $FF03
TED_T3LO = $FF04
TED_T4HI = $FF05
TED_MULTI1 = $FF07
TED_KBD = $FF08
TED_CURSHI = $FF0C
TED_CURSLO = $FF0D
TED_V1FRQLO = $FF0E
TED_V2FRQLO = $FF0F
TED_V2FRQHI = $FF10
TED_BGCOLOR = $FF15
TED_COLOR1 = $FF16
TED_COLOR2 = $FF17
TED_COLOR3 = $FF18
TED_BORDERCOLOR = $FF19
TED_VLINEHI = $FF1C
TED_VLINELO = $FF1D
TED_HPOS = $FF1E
TED_ROMSEL = $FF3E
TED_RAMSEL = $FF3F
; ---------------------------------------------------------------------------
; RAM/ROM selection addresses
ENABLE_ROM = TED_ROMSEL
ENABLE_RAM = TED_RAMSEL