🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: alt.msdos.programmer
Article #401

Re: Mem to Mem DMA ??

#401
From: Lord Eugster
Date: Thu, 20 Aug 1992 18:15
11 lines
855 bytes
Yes, please post.  I am interested in using DMA to transfer a MCGA 320x256
-256 color image from an aux buffer to the actual screen regen buffer at
0A000h.  It would be very nice to have DMA do this for me since copying the
64k buffer to the actual screen regen buffer (0A000h) is taking up too much
processor load.

If there is a way for DMA to do memory-memory (or memory-video buffer)
transfers, please post how.

Thanks,
Eugster
Technical Details
Message-ID: <57375@mentor.cc.purdue.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!swrinde!mips!news.cs.indiana.edu!noose.ecn.purdue.edu!mentor.cc.purdue.edu!linet2
References: <BtAJCz.FAM@news.cso.uiuc.edu>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!swrinde!mips!news.cs.indiana.edu!noose.ecn.purdue.edu!mentor.cc.purdue.edu!linet2
From: linet2@mentor.cc.purdue.edu (Lord Eugster)
Newsgroups: alt.msdos.programmer
Subject: Re: Mem to Mem DMA ??
Message-ID: <57375@mentor.cc.purdue.edu>
Date: 20 Aug 92 18:15:49 GMT
References: <BtAJCz.FAM@news.cso.uiuc.edu>
Organization: Purdue University Computing Center
Lines: 11