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I think that ideally we shall have an option for user-defined initial time, possibly defaulting to current time

Then, if the clock was battery powered, later sessions shall reload the last "emulated" time, ignoring the option, until the user nukes out the battery file
Otherwise, the option should be used.

however, in the past, RTCs typically used per-case solutions so that any kind of standardization will require some code efforts

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99% of RTC devices now are standardized on dirtc, so doing what you want is actually easy.

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@rfka01

What are the values differences that you get between the 'DMV hardware tests' and RTC.COM? I have tried both and the values seem correct here.

RTC_N.COM and SET_RTC.COM do not appear to be intended to be used with a K803 (that uses a MM58167), but with a module that uses a RTC-58321 (see screenshots), have you any info on other RTC modules other than the K803?


RTC_N.COM:


SET_RTC.COM:


Regards,

Sandro

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rfka01 Offline OP
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Hi Sandro,

the test program from 5xtest shows my real world system time. If I boot with the dmv_rtc image, the time shown by the dos prompt is reset to the time I first started the DMV tonight, currently 22:49:30, every time I reboot the machine using F3.

Robert

P.S. I know of no alternative modules, but I have disks for a "Version II" of the DMV that may or may have not been identical with the later PC4. Those disks contain RTC related files as well.

Last edited by rfka01; 11/13/14 09:55 PM.

NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Originally Posted By rfka01

the test program from 5xtest shows my real world system time. If I boot with the dmv_rtc image, the time shown by the dos prompt is reset to the time I first started the DMV tonight, currently 22:49:30, every time I reboot the machine using F3.


This is the behaviour of device_rtc_interface::set_current_time and I have no idea if is intended or not, anyway a hard reset (left shift + F3) forces a resync of the rtc with the real-world date/time.

Sandro


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That's intentional behavior, it lets you set a system time e.g. in the past and have it persist.

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rfka01 Offline OP
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Thanks Sandro and RB for clarifying this.



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rfka01 Offline OP
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Anybody can be the next George R.R. Martin now ... Sandro's added the K210 centronics interface, and you can load Wordstar in CP/M and print to a file through the line printer emulation.

Is there an equivalent to the post-processing that is possible with the Apple Imagewriter driver?

I'm still struggling with the concept of how to connect something to an emulated serial port - as the DMV also gained four RS-232 modules in one swell foop. laugh

Thanks once again!



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There are some external contributors who are getting very close to having several later Epson parallel printers fully emulated. They run the firmware and complete their self-tests now, but they can't yet receive data from the host system or produce any output.

As far as I can tell they're back compatible all the way to the Epson MX and FX that were ubiquitous in the 80s so it should be possible to get your George RR Martin on from a variety of MESS emulated systems smile

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rfka01 Offline OP
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He's using Wordstar 4 on a vanilla IBM compatible anyway IIRC, but he could change over to an emulated DMV now any day smile


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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