wilson@cat23.CS.WISC.EDU (David Wilson) (08/10/89)
In article <8908100542.AA01553@uxa.cso.uiuc.edu> krb20699@UXA.CSO.UIUC.EDU ("I can't remember...") writes: > > All circulated versions of ShrinkIt v2.1 that I have received do NOT >with Bird's Better Bye. If anyone has ProDOS 8 v1.7 with BBB, I would be >eternally grateful. > The version of ShrinkIt I posted in comp.binaries.apple2 is uncorrupt, >and completely accurate. Download it, but be aware that it needs at least >v1.7 of ProDOS 8. > > Ken. > krb20699@uxa.cso.uiuc.edu > {Internet} > About the BYE program in ProDOS... to get Byrd's Better Bye installed is a pretty easy task... 1) Take your copy of ProDOS with BBB <Byrd's Better Bye> and load it into memory starting at $2000. ]BLOAD PRODOS,A$2000,TSYS 2) Move the "Bye" code from ProDOS to where it would go if the ProDOS quit call were activated. (The "Bye" code resides in Bank 2 of the Bank Switched memory at $D100-$D3FF and is moved down to $1000 when it is actually run.) ]CALL-151 *1000<D100.D3FFM 3) Save the code to disk... *BSAVE BBB.QUIT,A$2000,L$2FF 4) Now load the ProDOS that you want to have a "Better Bye" from a different disk (assumed to be in Drive 1 in Slot 5). *PREFIX,S5 *BLOAD PRODOS,A$2000,TSYS 5) Take the program code you have moved down to $1000 and insert it into the ProDOS file before saving. *5900<1000.12FFM *BSAVE PRODOS,A$2000,L15485 <--- this length will change with ProDOS versions... Check length before-hand. 6) Try it out... That should be it... doesn't get any easier than that... If you are in question as to how it all works just try out a few books. 1) BENEATH APPLE PRODOS, Don Worth/Pieter Lechner 2) EXPLORING APPLE GS/OS AND PRODOS 8, Garry B Little ------------------------------------------------------------------------------- | Dave Wilson "Real Programmers never WRITE code ever,...| | wilson@garfield.cs.wisc.edu they always compose at the terminal | | wilson@macc.wisc.edu and they NEVER use the backspace key!" | | | | I'm a Senior and I'll be one forever if I don't get rid of this damned | | Computer... | -------------------------------------------------------------------------------
mattd@Apple.COM (Matt Deatherage) (08/11/89)
In article <2918@puff.cs.wisc.edu> wilson@cat23.CS.WISC.EDU (David Wilson) writes: > >About the BYE program in ProDOS... to get Byrd's Better Bye installed >is a pretty easy task... > > 1) Take your copy of ProDOS with BBB <Byrd's Better Bye> > and load it into memory starting at $2000. > > ]BLOAD PRODOS,A$2000,TSYS > > 2) Move the "Bye" code from ProDOS to where it would go if > the ProDOS quit call were activated. (The "Bye" code > resides in Bank 2 of the Bank Switched memory at > $D100-$D3FF and is moved down to $1000 when it is actually > run.) > > ]CALL-151 > *1000<D100.D3FFM > > 3) Save the code to disk... > > *BSAVE BBB.QUIT,A$2000,L$2FF > So far, so good (except it was written by Alan Bird, not "Byrd"). > 4) Now load the ProDOS that you want to have a "Better Bye" > from a different disk (assumed to be in Drive 1 in Slot 5). > > *PREFIX,S5 > *BLOAD PRODOS,A$2000,TSYS > > 5) Take the program code you have moved down to $1000 > and insert it into the ProDOS file before saving. > > *5900<1000.12FFM > *BSAVE PRODOS,A$2000,L15485 <--- this length will change > with ProDOS versions... > Check length before-hand. > ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK ACK A) You may NEVER just *assume* where something is going to be in the file PRODOS. You have to boot with that version of ProDOS, look at the quit code at $D100 and then find it in the file. For example, in P8 1.8 you'll find the quit code is *NOT* at offset $3900 ($5900 when BLOADed), and anyone following the above procedure with P8 1.8 will kill their ProDOS 8 file. B) You may also NEVER assume that nothing follows the Quit code in the PRODOS file. If the quit code is less than three pages long on disk, the above procedure will kill anything in the file after it, again making the file unusable. All in all, for many future compatibilty reasons, it's *always* better to leave the file PRODOS (or P8) alone and run a disk-based program selector that installs itself in memory. Takes a second or so longer at boot time but avoids a lot of problems in the future. > 6) Try it out... > No, Don't try it. Unless you like destroying P8 and hoping it doesn't destroy your disks in retaliation. >------------------------------------------------------------------------------- >| Dave Wilson "Real Programmers never WRITE code ever,...| >| wilson@garfield.cs.wisc.edu they always compose at the terminal | >| wilson@macc.wisc.edu and they NEVER use the backspace key!" | >| | >| I'm a Senior and I'll be one forever if I don't get rid of this damned | >| Computer... | >------------------------------------------------------------------------------- ----------------------------------------------------------------------------- Matt Deatherage, Apple Computer, Inc. | "The opinions expressed in this tome Send PERSONAL mail ONLY (please) to: | should not be construed to imply that AppleLink PE: Matt DTS GEnie: AIIDTS | Apple Computer, Inc., or any of its CompuServe: 76703,3030 | subsidiaries, in whole or in part, Usenet: mattd@apple.com | have any opinion on any subject." UUCP: (other stuff)!ames!apple!mattd | "So there." -----------------------------------------------------------------------------
krb20699@UXA.CSO.UIUC.EDU ("I can't remember...") (08/11/89)
I got ProDOS 8 v1.7 with Bird's Better Bye already installed from a
friend. Because of this, I didn't try out the previous suggestions. Even
if I DID, I've already got about two dozen PRODOS files floating around my
'library.' One is no major loss.
Thanks for the info.
Ken.
krb20699@uxa.cso.uiuc.edu
{Internet}