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Re: Siemens PC-D [Re: rfka01] #96911 11/11/14 04:46 AM
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Duke Offline
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I think the missing parts are described here:

"Eine genaue Beschreibung der Grundelektronik und deren Funktion
sind im Systemhandbuch (Best. Nr. A22441-A4430-X6-1-1B) zu finden."

Re: Siemens PC-D [Re: rfka01] #96914 11/11/14 08:54 AM
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rfka01 Offline OP
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I've asked around ... let's see what transpires.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Siemens PC-D [Re: rfka01] #96915 11/11/14 09:27 AM
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I've moved it to its own driver and removed it from pc.c, where it clearly doesn't belong: http://git.redump.net/mame/commit/?id=575d6ec0aa03ab0016c9f05abf4d5532e6f71b86


Re: Siemens PC-D [Re: rfka01] #96916 11/11/14 09:47 AM
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rfka01 Offline OP
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Yup, I've seen it, thanks. I've got a running system - is there any way to extract the info you need by open heart surgery? smile


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Re: Siemens PC-D [Re: rfka01] #96917 11/11/14 10:43 AM
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Duke Offline
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Sure, you could try and poke all I/O addresses and try to make sense of the data. A very long and error-prone process. Do you have the schematics maybe?

Re: Siemens PC-D [Re: rfka01] #96918 11/11/14 11:08 AM
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rfka01 Offline OP
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I'll have a look in one other publication I have(a training course), but afaik it's only a sort of flow chart.

In order to poke i/o I'd need to know what to look for ... I don't think I'm the right man for that.


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Re: Siemens PC-D [Re: rfka01] #96919 11/11/14 04:14 PM
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If in any way you have a BASIC (either built-in or in disk form) that's quite straight-forward, actually. It's just "POKE address,data" for write and "PEEK address" for read.

Re: Siemens PC-D [Re: rfka01] #96920 11/11/14 04:30 PM
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Or use DOS debug which looks to be on the MSDOS211.TD0 floppy, the I and O commands. If you do poke IO avoid the FF00-FFFF range as that is where the 186 built-in peripherals are located.

Last edited by crazyc; 11/11/14 04:33 PM.
Re: Siemens PC-D [Re: rfka01] #96926 11/11/14 07:31 PM
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rfka01 Offline OP
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OK ... one thing the training course manual states is that there's NVRAM between F000 and F7FF.

As for the rest ... if anyone can give me an example what to try, I'll be more confident ... I can dump chunks of memory using debug, but beyond that, things are quite hazy.


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Re: Siemens PC-D [Re: rfka01] #96927 11/11/14 09:46 PM
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I'll add the NVRAM (the manual says its optional, but we might as well add it).

Unfortunately it's not as easy as reading a region of memory to figure out the I/O locations.

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