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BASIC Handbook

Basic2 Commands
Disk Drives
PEEK's and POKE's
RAM Memory Map
ROM Memory Map
Screen Display
Sprite
ASCII and CHR$ Codes

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My BASIC Quick Reference Guide

Useful
PEEK's and POKE's

Characters and the Screen

POKE 53272,21 - switch to uppercase mode
POKE 53272,23 - switch to lowercase mode
POKE 53280,C - change border color (C = 0-15)
POKE 53281,C - change screen color (C = 0-15)
POKE 646,C - change cursor color (C = 0-15)
POKE 53265,PEEK(53265) AND 23 - turn off screen display
POKE 53265,PEEK(53265) OR 16 - turn on screen display
POKE 56341,S - set cursor speed (S = 0-255)
POKE 204,0 - turn cursor on during a GET
POKE 204,255 - turn cursor back off
POKE 19,65 - turn off question mark during INPUT
POKE 19,0 - turn question mark back on
SYS 58726 - CLR/HOME
SYS 59062 - Advance Cursor
SYS 59137 - Previous Line
SYS 59626 - Scrolls a Line
SYS 59903 - Clears Line of Text

Disk Drive

PEEK(186) - current disk drive in use

The Keyboard

POKE 650,128 - all keys repeat
POKE 650,127 - no keys repeat
POKE 650,0 - normal repeat
POKE 657,128 - disable SHIFT-Commodore
POKE 657,0 - enable SHIFT-Commodore
POKE 198,0 - clear keyboard buffer
POKE 649,1 - disable keyboard buffering
POKE 649,0 - disable keyboard
POKE 649,10 - normal buffering & enable keyboard
POKE 808,239 - disable RUN/STOP key
POKE 792,193 or POKE 808,225 - disable RESTORE
POKE 808,239:POKE 792,193 - disable RUN-STOP/RESTORE
POKE 808,234 - disable RUN-STOP/RESTORE and LIST
POKE 808,237:POKE 792,71 - enable RUN-STOP/RESTORE and LIST
POKE 808,237 - Enable Restore
POKE 808,237 - Restore Keyboard

Sound

POKE 54296,15:POKE 54296,0 make a click sound

Basic

POKE 775,200 - disable LIST
POKE 775,167 - enable LIST
POKE 22,35 - Turns Off Line Numbers
POKE 774,0 - With List Command, Shows Only Line Numbers
POKE 774,141 - With List Command, Vanishes Completely (Default Value 774,26)
POKE 775,167 - Enable List Command
POKE 775,168 or POKE 775,200 - Disable List Command
POKE 775,171 - Causes Computer to Crash If a LIST Command is Attempted
SYS 42562 - NEW

System

POKE 1,0 - Disable Operating System (Default Value 1,1)
POKE 56334,129 - Clock Reset for 50 Cycle Current
POKE 56590,128 - Clock Reset for 50 Cycle Current
SYS 58235 - Warm Start
SYS 64738 - Cold Start (Reset)

Miscellaneous

POKE 788,49 - Enable Stop Key and TI$
POKE 788,52 - Disables Stop Key and TI$
SYS 57194 - Re-activates EPYX Fastload
SYS 58260 - Initialize
SYS 65126 - Alternate Start


Commodore Cheetah made by Allen Monks, started in the year 2000.