[Simh] Announcing CDC 1700 series simulator

[Jordi Guillaumes i Pons]

Outstanding work! One more classical system preserved, and one more toy to play with!

Thanks for your work!

Jordi Guillaumes Pons


El 23 jul 2016, a les 18:27, John Forecast <john at forecast.name> va escriure:
> For the past couple of years or so, I have been working on a SIMH-based
> simulator for the CDC1700 series, a 16-bit system from the mid-1960's, using
> the documentation and software available at bitsavers. It has now sufficiently
> stable to allow others to make use ot the software. The base system implements:
> 
>         - a 1714 CPU with:
>                  - 1705 multi-level interrupts and direct storage access bus
>                  - up to 32KW of memory
>                  - memory protect system
>                  - Optional 64KW support
> 
>         - 1711-A teletypewriter
>         - 1721-A paper tape reader
>         - 1723-A paper tape punch
>         - 1740 or 1742-30 line printer
>         - 1738-B disk pack controller with up to 2 disk packs:
>                  (853 disk pack - 1.5MW)
>                  (854 disk pack - 3.0MW)
>         - 1733-2 cartridge disk controller with up to 4 drives:
>                  Each drive has 1 fixed disk and 1 removeable disk:
>                       (856-2 CDD - 1.13MW per disk)
>                       (856-4 CDD - 2.25MW per disk)
>         - 1732-A or 1732-3 magtape controller with 4 transports
> 
> The simulator is able to boot the diagnostic tape (SYSTEM17_SMM_DIAGS.TAP at
> bitsavers.org) and successfully execute tests for each of the above
> components. Some test sections fail due to various reasons; lack of
> documentation, timing issues, feature not implemented etc.
> 
> The simulator is also able to boot and install MSOS 5 from an installation
> tape (MSOS5_SL136.tap at bitsavers.org) onto a 1733-2 cartridge drive. This
> is a copy of a distribution tape provided by CDC to run on a 64KW system at
> Exxon.
> 
> I would like to thank Doug Gwyn for answering questions about the system
> architecture and providing details about specific diagnostics tests and
> Al Kossow for for peripheral documentation so that I could get MSOS 5
> installed.
> 
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