2 ; Vic20 generic definitions. Stolen mostly from c64.inc - Steve Schmidtke
6 ; ---------------------------------------------------------------------------
7 ; Zero page, Commodore stuff
9 ST = $90 ; IEC status byte
11 TIME = $A0 ; 60HZ clock
12 FNAM_LEN = $B7 ; Length of filename
13 SECADR = $B9 ; Secondary address
14 DEVNUM = $BA ; Device number
15 KEY_COUNT = $C6 ; Number of keys in input buffer
16 CURS_FLAG = $CC ; 1 = cursor off
17 CURS_BLINK = $CD ; Blink counter
18 CURS_CHAR = $CE ; Character under the cursor
19 CURS_COLOR = $287 ; Color under the cursor
20 CURS_STATE = $CF ; Cursor blink state
21 SCREEN_PTR = $D1 ; Pointer to current char in text screen
22 CURS_X = $D3 ; Cursor column
23 CURS_Y = $D6 ; Cursor row
24 CRAM_PTR = $F3 ; Pointer to current char in color RAM
27 PALFLAG = $2A6 ; $01 = PAL, $00 = NTSC
30 ; ---------------------------------------------------------------------------
38 PLOTCHAR = $EAAA ; Char in A, color in X
40 ; ---------------------------------------------------------------------------
41 ; Vector and other locations
47 ; ---------------------------------------------------------------------------
51 VIC_LINES = $9003 ; Screen lines, bit 7 is bit 0 from VIC_HLINE
52 VIC_HLINE = $9004 ; Rasterline, bits 1-8
53 VIC_COLOR = $900F ; Border and background color
55 ; ---------------------------------------------------------------------------
63 ; ---------------------------------------------------------------------------