Date: Mon, 9 Oct 1995 02:54:39 +0100 (MET) From: J Wunsch <j@uriah.heep.sax.de> To: didier@aida.org (Didier Derny) Cc: freebsd-hackers@freebsd.org (FreeBSD hackers) Subject: Re: direct acces to the text screen memory Message-ID: <199510090154.CAA03191@uriah.heep.sax.de> In-Reply-To: <Pine.BSF.3.91.951008215806.240A-100000@aida> from "Didier Derny" at Oct 8, 95 10:01:00 pm
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As Didier Derny wrote: > > ... but when the Commodore scroll the screen > the entire screen update becomes very slow since it rewrite the entire > screen. Why don't you scroll the screen then? > How can I map the text screen ? mmap(2). But only for the vty's. You lose on xterms and serial terminals. I guess at most 10 % of all applications run on vty's, so you can estimate the usage degree of your intented emulation. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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