[Simh] KS10 and the DMR
When trying to make the combination Simh KS10 work with the DMR synchronous line interface on Tops10-704; some peculiarities are encountered. Has anyone at the time seen this combination effectively work on the real hardware? The driver for DMR is D8RINT.MAC in UNSMON and is created for Tops10-702 by Timothe Litt and he stated in the documentation that performance had been checked in relation to the standard supported Kdp/Dup combination, so something must have worked at the time, whether within Dec laboratory or in the real world with some special customers. However by EDDT debugging the monitor 704, it is now clear that with the current releases of D8RINT and Tops10-704 it is impossible to function because of at least 2 errors in de code; one in D8RINT itself which on itself can be easily repaired, but leads to another second error found in SYSINI in Tops10; the relative location in SYSINI and possibly the form of the DMRONC routine creates race conditions on establishing the unibus map in the DMR control block leading to stopcode UBA. Does anyone know of later releases of D8RINT and or what the last working combination was. The errors found - thus far - have nothing to do with the hardware interaction itself or Simh emulation of it proper; it is pure Tops10 bebaviour. Best regards Volledige inhoud weergeven ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] KS10 and the DMR
On Thu, 6 Mar 2014, s...@swabhawat.com wrote: Does anyone know of later releases of D8RINT and or what the last working combination was. The errors found - thus far - have nothing to do with the hardware interaction itself or Simh emulation of it proper; it is pure Tops10 bebaviour. A newer one /might/ have been included with the 7.05 monitor set. Not sure though. Best regards Volledige inhoud weergeven -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] KS10 and the DMR
Might you know by chance where the 705 set can be retrieved; as far as I know 705 was the result of various patches applied to 704 and not released as a separate version. Best regards A newer one /might/ have been included with the 7.05 monitor set. Not sure though. Best regards Volledige inhoud weergeven -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] KS10 and the DMR
On Thu, 6 Mar 2014, R. Voorhorst wrote: Might you know by chance where the 705 set can be retrieved; as far as I know 705 was the result of various patches applied to 704 and not released as a separate version. I _think_ it's the TSU tapes on http://pdp-10.trailing-edge.com/ Best regards A newer one /might/ have been included with the 7.05 monitor set. Not sure though. Best regards Volledige inhoud weergeven -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] KS10 and the DMR
Trying to see whether it would work on Tops10-703 as probably nearby enough to 702, the following emerges: somehow on the 703 Decnet distribution tape a D8RINT version already for the 704 monitor version has been shipped as it has code on board referring to code pieces only existing in other monitor modules from 704 onwards. It can be checked against the difference between the versions of it's ancestor D8KINT. I know, status of D8RINT was effective unsupported although the various hooks to it do exist in supported monitor modules, but this flaw should not have happened. D8RINT as shipped in 703 Decnet cannot be used in the 703 monitor generation. Volledige inhoud weergeven ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] KS10 and the DMR
With the search functionality in the archive one can retrieve some older versions of D8RINT.MAC On the TSU for 704 there is no one distributed, so the last is for 704. ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] KS10 and the DMR
This issue has been discovered, but no real resolution has been discovered to resolve it. It is open on the github issue system at: https://github.com/simh/simh/issues/100 You guys seem to be digging in the right direction. If/when this process gets far enough to actually engage the DMR device more than the basic bus probe and 'are you there' device initialization which we've seen so far, there may indeed be problems with the DMR implementation. I'd be glad to see that so I can fix it. Please keep me advised. Commenting in the github issue would be good, but here on the simh list will also work. Thanks. - Mark ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
