Scrolling: it goes too slow. Anything I can do?

[na_th_an]

Before your loop:

Code:

DEF SEG = &HA000

To plot a pixel:

Code:

POKE y%*320& + x%, colour%

After your loop:

Code:

DEF SEG

Faster in compiled mode, but gives an error on the IDE is this:

Code:

POKE y%*320 + x%, colour%

(odd, but in EXE form integers seem to be unsigned sometimes )