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Article #37817

Re: multi plane <> grayscale ??

#37817
From: there IS no ``average'' SubGeniu...
Date: Wed, 07 Mar 1990 23:38
18 lines
1486 bytes
In article <395@texhrc.UUCP> ldm@texhrc.UUCP (Lyle Meier) writes:
>cg6 display device will not run on a sun 4/110 with a cg6. This is
>caused by the code in servers/ddx/sun normailizing the mmap in 
>sunCG6C.c to an offset based upon the page size. Unfortunatly the
>page size on the sparc station is 1/2 the size of the page on a 4/110.

This is not really an accurate description of the problem.  There is a bug
in the SunOS 4.0.3 (Sun-3, Sun-4) version of <sundev/cg6reg.h> where the
mmap offsets are defined in terms of the "ctob" macro, which is related to
NBPG, the compile time page size constant.  The SunOS 4.0.3c (Sun-4c)
version has the correct definition in terms of the constant 8192.  So, you
will only run into problems if you compile the server on an SS-1 (aka
4/60), using the 4.0.3 include file.  If you compile on a Sun-4, or
compile on an SS-1 with the 4.0.3c include file, you will get a server
which will work correctly on any Sun-4 or Sun-4c system.

-- 
David DiGiacomo, Sun Microsystems, Mt. View, CA  sun!david david@eng.sun.com
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Message-ID: <132660@sun.Eng.Sun.COM>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!wuarchive!texbell!texsun!newstop!sun!eng.sun.com
References: <395@texhrc.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!wuarchive!texbell!texsun!newstop!sun!eng.sun.com
From: david@eng.sun.com (there IS no ``average'' SubGenius)
Newsgroups: comp.windows.x
Subject: Re: multi plane <> grayscale ??
Message-ID: <132660@sun.Eng.Sun.COM>
Date: 7 Mar 90 23:38:10 GMT
References: <395@texhrc.UUCP>
Sender: david@sun.Eng.Sun.COM
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