Re: 11/750 frontend? - VMS

This is a discussion on Re: 11/750 frontend? - VMS ; On Thu, 15 Apr 2004, Julian Wolfe (FireflyST) wrote: > Just out of curiousity, does a VAX 11/750 have its pdp11 frontend built > into the console box? (i.e. the box behind the front panel)? The VAX-11/750 don't have a ...

+ Reply to Thread
Results 1 to 3 of 3

Thread: Re: 11/750 frontend?

  1. Re: 11/750 frontend?

    On Thu, 15 Apr 2004, Julian Wolfe (FireflyST) wrote:

    > Just out of curiousity, does a VAX 11/750 have its pdp11 frontend built
    > into the console box? (i.e. the box behind the front panel)?


    The VAX-11/750 don't have a PDP-11 frontend.

    Johnny

    Johnny Billquist || "I'm on a bus
    || on a psychedelic trip
    email: bqt@update.uu.se || Reading murder books
    pdp is alive! || tryin' to stay hip" - B. Idol
    ----------
    To unsubscribe (or subscribe) from (to) this list, send a message to
    info-pdp11-request@village.org, with the first line of the message
    body being "unsubscribe" or "subscribe", respectively (without the quotes).

  2. Re: 11/750 frontend?

    "Johnny Billquist" wrote in message
    news:Pine.LNX.4.58.0404152046420.10446@Tempo.Updat e.UU.SE...
    > On Thu, 15 Apr 2004, Julian Wolfe (FireflyST) wrote:
    >
    > > Just out of curiousity, does a VAX 11/750 have its pdp11 frontend built
    > > into the console box? (i.e. the box behind the front panel)?

    >
    > The VAX-11/750 don't have a PDP-11 frontend.


    It didn't have a PDP-11, but it did have something like an Intel 8086 (or
    maybe it was an 8085).

    Jim



  3. Re: 11/750 frontend?

    Jim wrote:
    >
    > "Johnny Billquist" wrote in message
    > news:Pine.LNX.4.58.0404152046420.10446@Tempo.Updat e.UU.SE...
    > > On Thu, 15 Apr 2004, Julian Wolfe (FireflyST) wrote:
    > >
    > > > Just out of curiousity, does a VAX 11/750 have its pdp11 frontend built
    > > > into the console box? (i.e. the box behind the front panel)?

    > >
    > > The VAX-11/750 don't have a PDP-11 frontend.

    >
    > It didn't have a PDP-11, but it did have something like an Intel 8086 (or
    > maybe it was an 8085).
    >
    > Jim


    Actually, it depends. If you don't have the RDM (remote diagnosis)
    option,
    then all the console interaction is done by the CPU microcode. The RDM
    contains
    an 8085 that is interposed between the CPU and the console terminal, and
    seems to
    listen in on console i/o traffic. It jumps in if you type control-D on
    the console.

    James

+ Reply to Thread