Path: Operating Systems/Help with 'dummy' PRODOS file
Subj: Help with 'dummy' PRODOS file 92-03-13 01:26:28 EST
From: WagnerE
Posted on: America Online
I am assisting my local computer user group in creating some public domain disks. We understand that cannot distribute Apple system software on these disks. To make it a little friendlier for the buyers of these disks, I have a created a small system program called PRODOS that will be automatically executed when the non-bootable disk is booted. My program displays text on what to do to make the disk a bootable ProDOS disk.
The problem... For some unexplained reason (to me) my program doesn't work properly with an Apple UniDisk 3.5 and an Apple brand controller card in a IIe. My IIe has 128K, 2 serial cards (SSC and SerialPro), mouse, and two 5.25 drives. The problem, when the 3.5 disk is booted in the UniDisk, the drives pulsates off and on until I press Control Reset. I can't figure this one out. The boot code in the controller card ROM should be loading block 0, and block 0 code should be looking for the PRODOS file. My program does nothing fancy -- it sets text mode for page 1 and clears screen and then uses COUT to display text.
My program does work correctly with 5.25 drives and with Apple 3.5 drives connected to the smartport of my IIgs.
Does anybody have an explanation and solution?
WagnerE :)
Path: Operating Systems/Help with 'dummy' PRODOS file
Subj: Unidisk 3.5 & GS/OS 92-03-15 06:42:59 EST
From: GSGM
Posted on: America Online
Your problem sounds very similar to using the Unidisk & GS/OS.
The problem has something to do with "sensing" whether a disk is changed or not. Sorry I can't be more specific.
GSGM
Path: Operating Systems/Help with 'dummy' PRODOS file
Subj: Problem Solved... 92-03-16 21:53:46 EST
From: WagnerE
Posted on: America Online
LL AndyW took a look at my code and made some changes. I did not properly 'initialize' the monitor (JSR $FB2F).
