Wibble

WIBBLE


by Andrew Paine





I bet if you tried to count the number of times you've sat staring at


your Speccy screen and thought "I wish I could make it wibble about a


bit" you'd run out of fingers and toes in no time at all. Frustrating,


isn't it? Andrew Paine has obviously encountered this problem more


often than most, because he's actually got up and done something about


it. Wibble is the result, and it does in fact make your screen, or


just parts of it if you want, wibble about a bit.





To put the thing into operation, type in the Basic section and save it


with SAVE "WIBDEMO" LINE 190. Then, by way of the Hexloader, type in


the Hex at address 60000 and save it after the Basic. Then reload and


run. Wibbly, eh?





But it doesn't stop there. You can tweak the program to your


satisfaction by POKEing the following addresses:





60004 Number of repeats until picture is stationary.


60006 Number of frames per repeat(must be a multiple of 16).


60119 Shift coefficient (how far it wibbles).


65533 Address at top left hand corner of window.


65534 Width of window in characters (allow at least three characters


on either side of your image).


65535 Height of window (in pixels).