Atari ST series - Page 363

The Intelligent Keyboard Controller
$10 Set y Origin at Top
T his co m m a n d se ts th e origin of th e y co o rd in ate sy stem a t th e b o tto m ,
w h ich m e a n s th a t d o w n w a rd m o v e m e n t (to w a rd s th e u se r) is tre ate d as
p ositiv e, a n d u p w a rd m o v e m e n t (a w ay fro m th e u ser) is trea te d as n e g a 
tive.
Input parameters
N o n e
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