Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!caen!spool.mu.edu!cs.umn.edu!uc!apctrc!drd!mike
From: mike@drd.com (Mike Rovak)
Newsgroups: comp.sys.handhelds
Subject: HP48 gravity game refinement
Summary: modify code
Keywords: HP 48 game modify
Message-ID: <1991Jun28.181047.21533@drd.com>
Date: 28 Jun 91 18:10:47 GMT
Article-I.D.: drd.1991Jun28.181047.21533
Followup-To: comp.sys.handhelds
Distribution: usa
Organization: DRD Corporation
Lines: 20

To prevent pixels from bunching up at the top or left line of the screen
when absolute pixel coordinates go negative, modify variable DRAWXY to
test for this like so:

%%HP: T(3)A(D)F(.);
\<<
    IF XM 0 < YM 0 <
OR NOT
    THEN XM R\->B YM
R\->B 2 \->LIST PIXON
    END
\>>

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