Path: utzoo!utgpu!watserv1!watmath!att!rutgers!uwm.edu!zaphod.mps.ohio-state.edu!usc!snorkelwacker!bloom-beacon!eru!hagbard!sunic!mcsun!hp4nl!fwi.uva.nl!croes From: croes@fwi.uva.nl (Felix A. Croes) Newsgroups: comp.os.minix Subject: Re: ST 1.5 patch2.uaa (1/3) Message-ID: <1220@carol.fwi.uva.nl> Date: 31 Aug 90 19:33:47 GMT References: Sender: news@fwi.uva.nl Lines: 20 meulenbr@cst.philips.nl (Frans Meulenbroeks) writes: >[stuff deleted] > HARD_SCROLL is gone. It required 32k for each console, and the gain ^^^^^^^^^^^^^^^^ > was not that big any more with the reworked stvdu, that I considered > it worthwhile to give up 2 * 32k for it. You mean for each virtual console? That is not nesseccary. Instead of 2 * 32k * no_of_virtual_terminals, only 32k + 32k * no_of_virtual_terminals should be needed, if the code is written right. It might be even better to keep a copy of the characters on the screen in memory, instead of a copy of the screen image. The speed penalty should be very small, only the screen buildup after a console switch is much slower. Or are you intending to add screen graphics? Felix Croes (croes@fwi.uva.nl) -- Felix Croes (croes@fwi.uva.nl)