Author: Ed Schröder
Date: 09:54:24 02/03/99
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>Posted by Robert Hyatt on February 03, 1999 at 09:55:20: >unless something has changed drastically, it doesn't do that. It _allows_ a >program to access memory beyond 640K, but it doesn't 'protect' it. Otherwise >you couldn't run something like this and hang the system: > > main() { > int a[1000]; > int i; > for (i=i;i<10000000;i++) a[i]=0; > } >Dos has never had the concept of 'a task' which is why "TSR (terminate and >stay resident)" programs were developed. They sit in memory, can write >_anywhere_ and you don't ever know unless they blow you up... IMO a TSR program isn't able to write (or read) above 1 Mb. Is this a correct view? >>Rebel10.0c (with auto232) is currently running on 2 autoplayer pairs >>under Win98 and a third autoplayer pair is running under Win95. No >>incompatible problems noticed sofar. >I assume your autoplayer 'bug' was not under windows? Because if it was, >then this changes things. The only thing that can access your memory is part >of _your_ program (including the auto232 driver code you include, of course, >but 'other programs/processes' can't touch you in win98. Only things that are >part of your code.. No. I always have tested outside Windows using a clean boot without any memory managers. Now I have started auto232 from the DOS-box within Win98. I wonder if this is good enough to be safe as I know HIMEM.SYS behaves different in the DOS-box than if you launch a program from the desktop. Ed
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