dmb@wam.umd.edu (David M. Baggett) (12/15/89)
For some rather complicated reasons I need to change system resolution without using the Bios, Xbios, etc. This code MUST be legal for ALL versions of TOS from now til the end of time. I can get the _screen_ to change rez, but I can't get AES, etc. to fully recognize the change. I managed to set bit planes correctly by changing the line A variable at base + 0, but it's still confused about the width of the screen in text columns, etc. Does anybody know what Line A variables I need to change to do this? Is there an offical Atari-sanctioned, guaranteed-not-to-break-ever way of pulling this off? (Please post replies to the net as it would be interesting to finally see a techincal discussion on this newsgroup intsead of flames!) Thanks, Dave Baggett (mail to dmb@TIS.COM)
mui@atari.UUCP (Derek Mui) (12/19/89)
in article <8912142100.AA13815@cscwam.umd.edu>, dmb@wam.umd.edu (David M. Baggett) says: > > > For some rather complicated reasons I need to change system resolution > without using the Bios, Xbios, etc. This code MUST be legal for ALL > versions of TOS from now til the end of time. > > Does anybody know what Line A variables I need to change to do this? > Is there an offical Atari-sanctioned, guaranteed-not-to-break-ever > way of pulling this off? > The AES does all the resolution fix up during the boot up time or at the request by the DESKTOP. There is no legal or illegal way to change resolution and be able to notify the AES about the change. ================================================================== Derek Mui, Atari Corp, 1196 Borregas Ave, Sunnyvale, CA 94086 UUCP: {..ames!atari!mui} FAX: 408-745-5179 Disclaimer: Opinions expressed here are my own and they may be hazardous to your mind. ==================================================================