[Simh] KS10 and the DMR
More time is getting consumed by the things around it like to enable debugging then the debugging proper. A Tops10-703 base system with Decnet networking has been generated. The standard basic network partner for my network tests is a Vax8600 with various DMC lines; I only use the more broader equipped Pdp11 with Dmc/Dup lines if I use Dup testing to contrast inline Ddcmp (DCM/DMR) with host based Ddcmp (Dup) behaviour as the latter can be seen as the "proper" standard. The base image was verified configured with the Kdp/Dup communicating with the Vax Dmc; Decnet functioned on the Ddcmp/Routing level and NFT worked. Therefor the base image can be assumed to be sound (enough). Configured with the Dmr and the D8RINT V016 driver set it still establishes the same crash in DEFCIR. This driver - already in its unpatched form - excels in an extraordinary amount of resetting the Dmr device completely, even the unconfigured non existing lines. Debugging D8RINT in 703 is somewhat different from 704 as the code seems to run in a different section from startup; initially the symbols are invisible, but that can be easily managed. Repairing the cause of the DEFCIR crash this still leads to another crash further down the line, but now at least we reach a stage where some Ddcmp activity can be seen. It looks like the Dmr at that point is properly setup to start communicating with the Vax Dmc (set in Dmr mode). However while the Vax is transmitting and receiving start dialog packets, the Tops10 side remains stuck in only transmitting start packets and retrying that after time out of receiving an acknowledge. Before continuing with the investigation of the further behavior of the D8RINT, it is now necessary to first investigate the Dmr emulation path why the Vax transmitted packets are not received. As the Ddcmp process is entirely within the Dmr, the Tops10 side has actually very little to do with it. Either the Dmr hasn't been properly setup or there is something within the emulation. What exactly is wrong cannot easily be explained as the Dmc/Dmr code base in the Pddp10 and Vax emulators is in fact (almost) the same. There is no difference in effective behaviour between the Tcp/IP connections of the Dmc/Dmr pair with and without udp; only when using the normal connections sometimes the lines are seen to be unavailable or busy. While on the Vax normal transmit/receive is shown, on the Pdp10 side this shows: DDCMP Link State: IStart R: 0 N: 0 A: 0 T: 1 X: 0 SACK: false SNAK: false SREP: false rcv_pkt: rcv_pkt_size: 0 xmt_buffer: nak_reason: 0 TimerRunning: true TimeRemaining: 4 Swbw07> show dmr0 stat DMR0 input (on) queued/total = 8/8 output (on) queued/total = 0/2104 packet data queued/packets sent = 0/263 output buffer size = 16384 bytes in buffer = 0 Buffers received from the network=0 Buffers sent to the network=1012 Output transfers completed for receive buffers=0 Output transfers completed for transmit buffers=0 Input transfers completed for receive buffers=15 Input transfers completed for transmit buffers=0 Control Out operations processed=0 DDCMP control packets received=0 DDCMP control packets sent=1012 To be continued ... ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SEL computer information
On Wed, Mar 05, 2014 at 06:57:03PM -0700, AZ Bevier wrote: > Hello all, > > I have lots of Gould/Encore/SEL software/manuals that I have developed/used > over the last 35 years. I am getting old(er) and wish to see this > information used for something. I have original manuals (lots) and many > cross-development tools. Such as a C compiler, runtime library, assembler, > library editor, make facility, disassembler, debugger, lots of tools, etc. I > have the original source. These tools run on Linux and target SEL Concept/32 > machines. Where can I send this stuff to. Is anybody interested? Let me > know what I can do with all this stuff. > > Thanks, > > Jim Perhaps the Computer History Museum http://www.computerhistory.org/ or a similar organization? -- Michael ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] SEL computer information
On 3/10/14 12:43 PM, Michael Mondy wrote: On Wed, Mar 05, 2014 at 06:57:03PM -0700, AZ Bevier wrote: Hello all, I have lots of Gould/Encore/SEL software/manuals that I have developed/used over the last 35 years. I am getting old(er) and wish to see this information used for something. I have original manuals (lots) and many cross-development tools. Such as a C compiler, runtime library, assembler, library editor, make facility, disassembler, debugger, lots of tools, etc. I have the original source. These tools run on Linux and target SEL Concept/32 machines. Where can I send this stuff to. Is anybody interested? Let me know what I can do with all this stuff. Thanks, Jim Perhaps the Computer History Museum http://www.computerhistory.org/ or a similar organization? I did send a message saying I (bitsavers / CHM) was interested ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
Re: [Simh] Nova emulator
G'day Ragge - To my knowledge, neither the Nova 840 map nor the FPU are implemented in the official SimH release. I will contact you off-list regarding assistance with the other items... Bruce Bruce Ray Wild Hare Computer Systems, Inc. On 3/9/2014 2:41 PM, Anders Magnusson wrote: Hi all, I took a look at the simh Nova emulator, and when reading the documentation it seems that neither the MMU nor the FPU is supported. Is this correct or just the docs lagging behind? I would like to fix Nova 840 support, that's why I am asking, and since the docs say nothing about Nova800 either I assume it is missing :-) So, any special recommendations if I would like to write that? Two other questions related to this: - Are the test programs for these extensions available in some form? - Is MRDOS (Mapped RDOS) for Nova available somewhere? I have the software myself, but unfortunately only on either paper tape, which I have difficulties reading, on 8" floppy (and no floppy drive), or 6045 pack (but no 6045...) I do have the corresponding listings also for some of the SW (like NMORT). -- Ragge ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh ___ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
