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echo: apple
to: comp.sys.apple2
from: Michael J. Mahon
date: 2009-03-03 15:34:16
subject: Re: More fun with Freed Z80

AppleCPM wrote:
> Hi!
> 
> On Mar 3, 5:01 pm, Steven wrote:
>> What on earth uses the CTC?
> 
>     The archive mentioned below my signature contains a '.LBR' file
> named "PCPI-RTC.LBR".  I'm going to upload the component files to the
> 'Files' section of the Yahoo! CP/M group to save interested
> individuals the trouble of getting to the individual files.
> 
> Willi
> 
> http://mylinuxisp.com/~jdbaker/oldsite/binaries/pcpidvrs.sdk

I'm guessing from the name of the file that it uses the CTC to
implement a real-time clock for CP/M.

Since most Apple II's will already have a real real-time clock
installed that is already set to the correct date and time,
wouldn't it be better to write a small driver to get the date
and time from that clock, or, if it is running, ProDOS (which
would cover all clocks with one driver)?

-michael

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