On May 21, 2015 12:32 PM, Alan Frisbie <fris...@flying-disk.com> wrote: > > Mark, > > > > The difference with the simulator vs the real hardware is that, > > > in general the TPC program may never get a chance to queue more > > > than one I/O to the device since the first operation will likely > > > complete BEFORE control returns to the user mode program. This > > > may stress the user mode program in ways which it never saw when > > > real tape operations took many milliseconds (or seconds). > > > > An excellent point, which I had not considered. I will have to > > do some exploration in this area. > > > > > If this is happening, some adjustments to the behavior of the > > > TS device can potentially be made to slow it down. Try > > > "sim> DEP TS TIME 5000" or change 5000 to some other large number > > > (the default is 10). > > > > I will try this and let you know what happens. > > I tried this, and it appears to fix the problem! At least TPC > completes and has created a file of approximately the right size. > > Thank you for saving me lots of debugging time. > > Now the next problem: > > When I try to create a new SIMH "tape", I am getting a "File open > error", but no other information. How can I find out what the > problem is? Here are the commands I am issuing: > > sim> set ts0 format=tpc > sim> show ts0 > TS0 not attached, write enabled, TPC format > unlimited capacity > sim> attach -n ts0 newrsx11s.tpc > File open error > sim>
Simh does not support writing tapes in TPC format. -Mark
_______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh