BLIT

Syntax: BLIT fromX, fromY, width, height, toX, toY

Causes an rectangular area of the screen specified by (fromX, fromY, w, h) to be copied to (toX, toY). This command can be used to perform scrolling.

Example

10 REM SCROLL SCREEN ONE PIXEL LEFT
11 W=WIDTH()
12 H=HEIGHT()
13 BLIT 0, 0, W, H, -1, 0

20 REM SCROLL SCREEN ONE PIXEL RIGHT
21 W=WIDTH()
22 H=HEIGHT()
23 BLIT 0, 0, W, H, 1, 0

30 REM SCROLL SCREEN ONE PIXEL UP
31 W=WIDTH()
32 H=HEIGHT()
33 BLIT 0, 0, W, H, 0, -1

40 REM SCROLL SCREEN ONE PIXEL DOWN
41 W=WIDTH()
42 H=HEIGHT()
43 BLIT 0, 0, W, H, 0, 1