Path: utzoo!attcan!uunet!zephyr.ens.tek.com!tektronix!psueea!parsely!bucket!leonard
From: leonard@bucket.UUCP (Leonard Erickson)
Newsgroups: comp.lang.pascal
Subject: Re: TP BUG
Keywords: TP, WINDOWS, BUG
Message-ID: <1949@bucket.UUCP>
Date: 1 Feb 90 09:22:43 GMT
References: <819@tuewsd.lso.win.tue.nl> <1936@bucket.UUCP> <1385@maytag.waterloo.edu>
Organization: Rick's Home-Grown UNIX; Portland, OR.
Lines: 29

dmurdoch@watstat.waterloo.edu (Duncan Murdoch) writes:

>In article <1936@bucket.UUCP> leonard@bucket.UUCP (Leonard Erickson) writes:
>>
>>You are using a CGA card. The bug *only* appears on CGA cars and is due to
>>a BIOS bug. The bug is in the CGA scrolling routines... EGA BIOSes fix it.
>>
>>If the above is *not* true, then you have discovered a new bug. But most
>>likely you've re-discovered the old bug. 

>The bug also shows up on my ATI VGA Wonder.  That doesn't prove it's a new
>bug, though...  1/2 :-)

Well, a couple years back when I had more that for that sort of thing
I followed the goings on on the Borland Forum on CIS. At that time there
was quite a thread from programmers cursing ATI for their non-compatible
BIOS (as in BIOS call xx on an EGA is *supposed* to do this, on an ATI
card it does something else [or justr didn't work]). There were also
complaints about the "bios update of the week"....

ATI may have cleaned up their act, but I doubt it. *EVERYONE* who did
low-level access to video boards had horror stories. "My program runs
just fine... except on ATI cards. They *think* they fixed it with last
weeks update, but it's still broken..."
-- 
Leonard Erickson		...!tektronix!reed!percival!bucket!leonard
CIS: [70465,203]
"I'm all in favor of keeping dangerous weapons out of the hands of fools.
Let's start with typewriters." -- Solomon Short