Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uunet!ogicse!orstcs!jacobs.CS.ORST.EDU!maksymc
From: maksymc@jacobs.CS.ORST.EDU (Chris Maksymiak)
Newsgroups: comp.sys.handhelds
Subject: Re: Melting 48 Display
Message-ID: <21051@orstcs.CS.ORST.EDU>
Date: 16 Oct 90 19:02:32 GMT
References: <9095@helios.TAMU.EDU> <25590065@hpcvra.CV.HP.COM>
Sender: usenet@orstcs.CS.ORST.EDU
Organization: Oregon State University - CS - Corvallis
Lines: 31


	Soon after my posting, I managed to get a copy of Alonzo 
Gariepy's "Intro to the 48's Internals"... after learning how to
use the memory scanner, I played around with (ya, real stupid, huh?)
the #00100h area adresses... In the first nibble, the 8 seems to
turn the display off (along with the basic keys, not the [on]-??
ones though -- [on]-c will work...)...  by placing a 9 through A
in that position instead, one can shift the display to the left
X-8 pixels (where X is what you put in)... anything higher will
do some strange things to the display characters... (anyone have
a guess?)  I found that the #00101h address is just a nibble
representing your contrast level (put a larger one in for a higher 
contrast)... 
	Question: anyone know a way to exit the memory scanner
without a [on]-c or a [on]-[spc]?  btw, the [on]-[spc] is guessed
to be the way to enter the "coma mode"---don't ask me what this is..
(guess by Alonzo...)  I found a very strange "real" located at
#1017Bh SYSEVAL ... it turns out to be: -5.72874767606E2:8 
yes, it has a ':' in the exponent... I found that if you divide
it by itself, you don't get one, you get 1.1516...  any ideas?
well.. enough comments... 
If anyone is curious, I got four requests ("me-too's") for this
info (sent out copies of the innards file) by some people that
think that it was a good idea for email-"me-too's" instead of 
posting... But I didn't get a single response with any info...
interesting...


-- Chris Maksymiak
-- maksymc@jacobs.cs.orst.edu
-- maksymc@128.193.32.13