Article View: comp.os.msdos.programmer
Article #2255Re: Writing DOS Memory to Disk
From: Everett Kaser
Date: Mon, 17 Sep 1990 15:37
Date: Mon, 17 Sep 1990 15:37
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Something you should beware of with "memory swap-to-disk" programs is tsr's and programs that deal with interrupts. If the interrupt vector table isn't modified to handle these interrupts, then when you swap code out to disk and overlay it with something else, your system crashes. If you do modify the interrupt vector table, you may screw the pooch also, because some other component (software or hardware) of the system may be depending upon that interrupt service. These memory swappers are kind of neat, but they're a real dangerous kludge on top of a single tasking OS. Everett Kaser Hewlett-Packard Company ...hplabs!hp-pcd!everett work: (503) 750-3569 Corvallis, Oregon everett%hpcvra@hplabs.hp.com home: (503) 928-5259 Albany, Oregon
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sdd.hp.com!hp-pcd!hpcvra!everett From: everett@hpcvra.CV.HP.COM (Everett Kaser) Newsgroups: comp.os.msdos.programmer Subject: Re: Writing DOS Memory to Disk Message-ID: <31600003@hpcvra.CV.HP.COM> Date: 17 Sep 90 15:37:19 GMT References: <142@usissc.Dayton.NCR.COM> Organization: Hewlett-Packard Co., Corvallis, OR, USA Lines: 12