Re: bsq files

[mjmahon@aol.com (Michael J. Mahon)]

John wrote (top-posting corrected):

>On 13 Jan 2004 09:24:34 GMT, mjmahon@aol.com (Michael J. Mahon) wrote:
>
>>Paul R. Santa-Maria wrote:
>>
>>>Bill Garber wrote:
>>>> Or as I do, simply run the intended file from the
>>>> BASIC prompt. For the No Slot Clock I did exactly
>>>> that. I figured I only needed to run it once since
>>>> once the patched ProDOS was on my CFFA drive, I would
>>>> not need to run it again. ;-)
>>>
>>>It all depends on whether the program patches the
>>>ProDOS clock driver in memory or on disk.  The 
>>>location of the clock driver was fixed in memory
>>>but changed on disk as different versions of
>>>ProDOS were developed.
>>>
>>>Obviously, if PRODOS.SYSTEM was patched then you
>>>only had to run it once.  If the driver was
>>>installed in memory then you had to run it each
>>>boot.
>>
>>Exactly.  And IIRC, the No-Slot Clock program is a
>>boot-time patch of the clock driver in _memory_.
>>
>>I would expect any program packaged as a SYS program
>>to be of this type, since a regular BRUNable program, or
>>even an Applesoft program, could patch the ProDOS clock
>>driver on disk.  SYS programs with xxx.SYSTEM names
>>can be run automatically on boot (without any modification
>>to a disk's STARTUP program).
>>
>>It was considered better form to patch ProDOS in memory
>>than to patch it on disk, although I chose the latter method
>>for a clock driver I wrote.  By appending a "p" to the ProDOS
>>version number, though, the patched status was obvious at
>>boot time.
>
>I tried putting the file on the first part of the disk and the file
>loads but as soon as the message displays that it loaded, Apple goes
>to monitor mode.  Does anyone have a different driver or another
>solution?

It needs to be the first xxx.SYSTEM file on the disk (it sounds like
it is, if it's running).

Then there needs to be a second .SYSTEM file--usually BASIC.SYSTEM--
that it loads when it is finished patching ProDOS.

You can control the file order in the directory easily by controlling
the order in which you copy the files to a formatted disk.

-michael

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