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Path: ns-mx!uunet!cs.utexas.edu!swrinde!mips!apple!apple!dlyons From: dlyons@Apple.COM (David A Lyons) Newsgroups: comp.sys.apple2 Subject: Re: Boot icons Message-ID: <66587@apple.Apple.COM> Date: 5 May 92 09:43:35 GMT References: <1992Apr30.125310.84@wsuhub.uc.twsu.edu> Organization: Apple Computer Inc., Cupertino, CA Lines: 22 In article <1992Apr30.125310.84@wsuhub.uc.twsu.edu> rgshacke@wsuhub.uc.twsu.edu writes: [...] >>The ability to not show the icons is already in 6.0, there just isn't >>any human interface for it. Set bit 1 of Battery RAM location $5F, >>and ShowBootInfo will keep its grubby hands off of your boot screen. > >As Bart might say, CEEOOOOLL, MAN!! I'll pull out my toolbox reference and fire >up some code to do that. First though, are there any side effects to worry >about? What else does that location do? Any difference between ROM 01 and 03? Location $5F works the same on ROM 1 and ROM 3, and it's ignored in systems earlier than 6.0. -- There are no side-effects of bit 1, but some other bits are used, and the rest are reserved for future use, so be sure to modify only the bit you intend to! (ORA #$02 to set bit 1, AND #$FD to clear bit 1.) -- David A. Lyons, Apple Computer, Inc. | DAL Systems Apple II System Software Engineer | P.O. Box 875 America Online: Dave Lyons | Cupertino, CA 95015-0875 GEnie:DAVE.LYONS CompuServe:72177,3233 Internet:dlyons@apple.com My opinions are my own, not Apple's.