128 Tips for MCUC Magazine via The Newsletter

C-128 Help

If you are programming in Basic and don't need the 40-column graphics, type the following to give you an extra 2300 bytes of Basic RAM:

POKE 45,1: POKE 46,19: POKE 4864,0: NEW

Ring - Ring Out C-128 Bell

PRINT CHR$(7)

This will reset the Volume to an intermediate level, 7 or 8.

C-128 Error Trap

At the end of your program, add these lines (numbered as shown).  If there is a program error, these few lines will tell you what it is, where it is and show you the offending line on the screen:

0 TRAP63999:REME ANSWER=S.TAPLEY
63998 PRINT"THE PROGRAM IS OK!":END
63999 PRINT ERR$(ER);"ERROR IN LINE"
;EL:HELP