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Re: strange clock card
after more tests running apps, most of them work, but one thing
nagging me is appleworks (a real old one). version 1.2 i think. for
one, it doesnt seem to use the prodos clock driver. AND the worst
part is it insists on having you enter todays date (which should be
later than 1983) who made this stuff? didnt they think someone will
still be using it after 1999? Can i sector edit the sucker and $EA
(NOP) out the instructions that check for it? are there any free
patchers out there that replace the "open-apple-? for help" with the
date and time? I only have floppy drives on the //e so no suggestions
about later appleworks versions.
mjmahon@aol.com (Michael J. Mahon) wrote in message news:<20030115230616.19920.00000021@mb-cu.aol.com>...
> jon@i-manila.com (Jon Co) asked:
>
> >Ok, I've been reading more past posts, I now know how to set and read
> >the time and date. I think what I need now is the prodos 8 technical
> >reference manual. Not having that, I DO have the prodos technical
> >reference manual (circa 1983 for use with workbench binder a7p0001)
> >which doesnt really have what I need (how to install a clock driver).
> >I just need some sample code for a system file that loads into $2000,
> >relocates appropriate code over the built in thunderclock code (which
> >i read still has the pointer in $BF07-$BF08, even if there is an RTS
> >in $BF06), then runs the next .system program on the disk. i've seen
> >an AECLK.SYSTEM in one of my disks somewhere, I need something like
> >that, umm preferably in source form and commented, I'll probably be
> >hand-assembling the code.
> >Failing that, I'd be fine with patching the prodos file on the disk,
> >how do I find where in it is the thunderclock driver?
>
> The Thunderclock driver is in a different spot in the ProDOS image
> in the different ProDOS versions. It is not simply moved into place,
> but is relocated, IIRC, so you'll have to understand a bit more of the
> ProDOS initialization code than you planned.
>
> The easiest way is to do what you first suggested: run a separate
> xxx.system program to install the clock driver and then run the
> next .system program. This is actually what Apple recommends, too.
>
> -michael
>
> Check out amazing quality 8-bit Apple sound on my
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