IEEE-488 on the PDP-11

Douglas Taylor dj.taylor4 at
Tue Nov 16 11:23:15 CST 2021

I'm going by the 'Instrument Bus Subroutines Programmer's Reference 
Manual' that is on bitsavers. [/pdf/dec/pdp11/minc]  In section 4, page 
4-1 it seems to imply that there are 6 files:


I think that's it.  *.OBJ is a library to link to, *.FOR is a test 
program, *.SYS are device drivers for MINC and ordinary PDP-11 SJ, FB 
and XM monitors.  It probably is on it's own disk (RX01 RX02?)


On 11/16/2021 11:56 AM, Jonathan Chapman via cctalk wrote:
> I should have them in my MINC-23 stuff. If you can figure out which distribution diskette they're on, I can make you an image or copy.
> Thanks,
> Jonathan
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Tuesday, November 16th, 2021 at 11:01, Douglas Taylor via cctalk <cctalk at> wrote:
>> In my pile of DEC computer stuff I have a DEC qbus IBV11 IEEE-488
>> controller board (M7954) with cable (BN11-A) that connects to the GPIB bus.
>> It would be interesting to try this out, but I don't have the DEC
>> 'Instrument Bus Subroutines' that work under RT-11.  Does anyone have
>> this package?  Or know where it can be found?
>> Doug

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