>>>>> "DS" == Dan Sugalski <[EMAIL PROTECTED]> writes:
>> > What I'm planning on is a VMS-style quota, privilege, and identifier >>> system. >> >> Pagan heretic -- you shall burn in the purifying flames of RSTS/E! DS> Mmmm, RSTS/E. And BASIC/PLUS 2.6. Now *those* were the days. Now, DS> where did I put my overlaying linker... RT-11 had a neat feature with overlays. since you could have more physical ram (22 bits of address) than virtual ram (16 bits) you could use the extra ram for overlays instead of disk. this was much faster as you would imagine. all the overlay runtime code had to do was mung a few memory management registers. i did that myself to load audio data into the high ram (where the dma hardware could directly access it as it had 22 physical address bits in it). you kiddies are SO SPOILED today. :) what is amazing is how you can actually have more physical ram today (4GB) than virtual again (on 32 bit boxes of course)! my how history repeats! :) uri -- Uri Guttman ------ [EMAIL PROTECTED] -------- http://www.stemsystems.com --Perl Consulting, Stem Development, Systems Architecture, Design and Coding- Search or Offer Perl Jobs ---------------------------- http://jobs.perl.org
