CXK126@psuvm.psu.edu (James R. Evans) (11/08/90)
I was going through my disks the other day and I remembered that I had bought Test Drive II, but don't play it very much. It is a very fun game, but it takes over a minute of disk access between sections, and much more than that just to boot up. Seeing that it uses the 'ole Prodos 16, I was wondering if anyone had managed to put it on a disk with GS/OS? I had tried a while ago, bt I nad not been at all successful with it. If someone has done this, I would greatly appreciate a copy of the disk's directory so I could get it to work. Any help would be appreciated..... -------------------------------------------------------------------- James Evans 'Darn right I like my IIGS' : \ / / \ \ / / \ /\ Delta Chi "QUACK!" / \ / \ --------- / \ _____________________________________________________________________
cs4w+@andrew.cmu.edu (Charles William Swiger) (11/08/90)
Test Drive II uses a very through and unnecessary copy protection scheme that is a real pain to deprotect. At least on my copy, you can't update to GS/OS or a newer version of ProDOS 16, nor can you boot of another drive with a newer system and then use aprogram selector to run the game. Additionally, you can't have a RAMDisk active, because it complains of "memory fragmentation". And, of course, their is a sync check & nibble count on tracks $20 and $21, if I remember correctly. An ugly mess. Since I have a master disk, I (not so) simply removed the checks for the operating system code and for the RAM disk...leaving the sync/nibble count in (it wasn't worth the effort to find the code.) So now I can copy the disk into the RAM disk, then run the program from the GS/OS 5.0.2 system disk, leaving the original disk in drive one. The program loads the data of the RAM disk but does the sync/nibble count routines on the master disk....for a HUGE speed improvement. It takes as long to boot the disk as it did before, but once you're playing, the wait between sections is about 5 seconds...much better!! -- Charles William Swiger cs4w+@andrew.cmu.edu
shatara@islnds.enet.dec.com (Chris Shatara) (11/11/90)
In article <gbCFNnO00VpM50ElYx@andrew.cmu.edu>, cs4w+@andrew.cmu.edu (Charles William Swiger) writes... > >Since I have a master disk, I (not so) simply removed the checks for the >operating system code and for the RAM disk...leaving the sync/nibble >count in (it wasn't worth the effort to find the code.) So now I can >copy the disk into the RAM disk, then run the program from the GS/OS >5.0.2 system disk, leaving the original disk in drive one. The program >loads the data of the RAM disk but does the sync/nibble count routines >on the master disk....for a HUGE speed improvement. It takes as long to >boot the disk as it did before, but once you're playing, the wait >between sections is about 5 seconds...much better!! > >-- Charles William Swiger > cs4w+@andrew.cmu.edu Can you send out the instructions for what you did. I'm particulary interested in bypassing the RAMDISK check. This has been a royal pain for me. Thanks...Chris ============================================================================= | Chris Shatara | Internet: shatara@islnds.enet.dec.com| | Opinions expressed are | DEC Easynet: islnds::shatara | | mine and mine only! | UUCP: ...!decwrl!islnds!shatara | =============================================================================