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OK, so what does the 3830 do with that? Or the 3880?

On Fri, Dec 23, 2022 at 7:44 PM Joe Monk <joemonk64@...> wrote:

The 3350 manual says:

When pressed, the Attention pushbutton starts a Rezero operation. Rezero moves the heads to cylinder zero, resets the address registers, and signals Attention to the controller.

Joe

On Fri, Dec 23, 2022 at 6:45 PM Bertram Moshier <herc370390vm@...> wrote:

If the I command won't cause the breaking of an active CCW for a device, what is the proper method for doing it?

I know with real iroon on a 3350 device, I was able to break an active CCW chain (in a loop).? Given (I thought Hercules reproduces real iron) what would be the equivalent?

Thank you.

On Fri, Dec 23, 2022, 17:33 Fish Fish <david.b.trout@...> wrote:

Tony Harminc wrote:
> Joe Monk wrote:
> > Bertram Moshier wrote:
> >
> > > So, how does one on Hercules interrupt a CCW program in
> > > an infinite loop?
> >
> > That would be the "I" (capital letter I) console command.
> >
> > I 0194
>
> I don't think so. That would just generate a standalone Device
> End (and/or Attention?).

Attention --- *IF* it were possible of course (which it's not because the device is still busy; you can only generate an attention interrupt for idle devices).

(And the command does NOT need to be capitalized either. A simple "i <devnum>" is all that is needed. It can be capitalized if you want to enter the command that way (I think), but it's certainly not necessary.)


> It's possible that might effectively interrupt a running
> channel program,

Nope. Not possible. Attention interrupts cannot be generated for devices that are still busy executing an I/O. Only idle devices can have an attention interrupt generated for them via the "i" command.

--
"Fish" (David B. Trout)
Software Development Laboratories

mail: fish@...

--

Jay Maynard