Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10 5/3/83 (MC830707); site sara70.UUCP
Path: utzoo!linus!philabs!cmcl2!seismo!mcvax!sara70!rick
From: rick@sara70.UUCP (rick)
Newsgroups: net.micro.cbm
Subject: BITMAP graphics under ROM
Message-ID: <251@sara70.UUCP>
Date: Tue, 13-Nov-84 06:32:06 EST
Article-I.D.: sara70.251
Posted: Tue Nov 13 06:32:06 1984
Date-Received: Thu, 15-Nov-84 01:36:20 EST
Organization: SARA, Amsterdam, The Netherlands
Lines: 23


I have found something nice considering bitmapped graphics
on the CBM 64. It is possible to have a hiresolution
bitmap located UNDER the BASIC or KERNAL roms without
actually switching off the rom in question. The VIC
chip appears to be reading the RAM no matter the
ROM is switched on. This is very useful, for now a 
bitmap can be located under the kernal while all
interrupt routines remain working... Also your BASIC
workspace insn't deprived of its workspace!

Rick Jansen @ SARA
   {philabs,decvax,seismo}!mcvax!sara70!rick




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