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Article #24Bami's DMA reply
From: D-ROGERS
Date: Wed, 26 Feb 1986 17:03
Date: Wed, 26 Feb 1986 17:03
21 lines
1685 bytes
1685 bytes
I couldn't reply direct as you can see below, so here it is for everyone: >26-Feb-86 08:41:09-PDT,1563;000000000001 >Return-Path: <MAILER-DAEMON%case.csnet@CSNET-RELAY.ARPA> >Received: from CSNET-RELAY.ARPA by EDWARDS-2060.ARPA with TCP; Wed 26 Feb 86 08:41:02-PDT >Received: from case by csnet-relay.csnet id ae06655; 26 Feb 86 11:01 EST >From: Mail Delivery Subsystem <MAILER-DAEMON%case.csnet@CSNET-RELAY.ARPA> >Subject: Returned mail: User unknown > > ----- Transcript of session follows ----- >550 bami@CASE... User unknown unless the ST does things a lot different than other computers i've seen your description to Mike K. was inadaquate. Direct Memory Access still requires use of the address and data paths, the advantage is that this may be done without processor intervention, except bus arbitration, during times when the CPU is occupied with decoding or executing an instruction. Unless the ST has some sort of dual port access a-la-shared memory, the DMA port represents no gain over direct bus connection. FIELD@EDWARDS-2060 -------
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!bellcore!decvax!decwrl!ucbvax!info-atari16 From: D-ROGERS@EDWARDS-2060.ARPA Newsgroups: net.micro.atari16 Subject: Bami's DMA reply Message-ID: <12186474470.20.D-ROGERS@EDWARDS-2060.ARPA> Date: Wed, 26-Feb-86 12:03:36 EST Article-I.D.: EDWARDS-.12186474470.20.D-ROGERS Posted: Wed Feb 26 12:03:36 1986 Date-Received: Fri, 28-Feb-86 21:51:41 EST Sender: usenet@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 21