Commodore VIC-20 Programmer's Reference Manual page 189

HEX
'OOFB-OOFE
OOFF
0100-01OA
0100-013E
0100-01FF
■0200-0258
'0259-0262
'0263-026C
'026D-0276
•0277-0280
•0281-0282
■0283-0284
0285
"0286
0287
•0288
•0289
. -028A
■028B
028C
•028D
028E
028F-0290
"0291
0292
0293
0294
0295-0296
0297
0298
0299-029A
i 029 B
029C
029D
029E
029F-02AO
02A1-02FF
■0300-0301
0302-0303
0304-0305
0306-0307
0308-0309
" Uselul memon
DECIMAL
251-254
255
256-266
256-318
256-511
512-600
601-610
611 -620
621-630
631-640
641-642
643-644
645
646
647
648
649
650
651
652
653
654
655-656
657
658
659
660
661-662
663
664
665-666
667
668
669
670
671 -672
673-767
768-769
770-771
772-773
774-775
776-777
location
DESCRIPTION
Operating system free zero page space
Basic storage
Floating to ASCII work area
Tape error log
Processor stack area
Basic input buffer
Logical file table
Device # table
Secondary Address table
Keyboard buffer
Start of memory for op system
Top of memory for op system
Serial bus timeout flag
Current color code
Color under cursor
Screen memory page
Max size of keyboard buffer
Key repeat (128 = repeat all keys)
Repeat speed counter
Repeat delay counter
Keyboard Shift/Control flag
Last keyboard shift pattern
Pointer: decode logic
Shift mode switch (0 = enabled, 128-
locked)
Auto scroll down Hag (0 = on, <>0 = off)
RS-232 control register
RS-232 command register
Nonsiandard (Bit time/2-100)
RS-232 status register
Number of bits to send
Baud rate (full) bit time
RS-232 receive pointer
RS-232 input pointer
RS-232 transmit pointer
RS-232 output pointer
Holds IRQ during tape operations
Program indirects
Error message link
Basic warm start link
Crunch Basic tokens link
Print tokens link
Start new Basic code link
173