Path: utzoo!attcan!uunet!fernwood!portal!cup.portal.com!Jake-S
From: Jake-S@cup.portal.com (Jake G Schwartz)
Newsgroups: comp.sys.handhelds
Subject: Re: GROB Vertical Printer
Message-ID: <34810@cup.portal.com>
Date: 13 Oct 90 05:58:20 GMT
References: <10220@ccncsu.ColoState.EDU>
Organization: The Portal System (TM)
Lines: 12

Before anybody endeavors to write the GROB rotate in machine code, one
should know that a version already exists in Jim Donnelly's HP48 Programmer's
Toolkit. It rotates 90 degrees either clockwise or counterclockwise, and 
does a full 131 by 64 in about 15 seconds. This one was optimized for space,
not speed, according to Jim; he told me that it probably could have been
twice as fast but might have been three times the size in order to achieve
the speed.
   I also did a user-code GROB rotate about 6 months ago and found that a
full 131 by 64 took over 9 minutes, so I set it aside as an exercise in
learning the calculator <grin>....

Jake Schwartz