[Simh] TOPS-20 4.1 Cobol 12c Sample test failure

[Rich Alderson]

> From: Pascal Parent <pascguyz at gmail.com>
> Date: Thu, 27 Oct 2016 22:55:48 -0700

> I installed TOPS-20 V4.1 and COBOL-74 12C in SIMH. However, I am running
> into an error when trying to run the XT74 sample in UETP.LIB.

> I also installed Cobol 12C from the same tape on the Panda Distribution
> using the KLH10 emulator. There the test is successful.

> See the from both systems below.

> Could this be explained by a difference between the KL-10 (KLH10) and KS
> (SIMH) simulated hardware or is it a symptom of a bug in SIMH? I am running
> this version:

> "PDP-10 simulator V4.0-0 Beta        git commit id: cf1e7b9c"

> Let me know if there is any other information I can provide that would be
> useful.

I ask out of curiosity:  Did you try the same test on the KLH10 *KS10*
emulation?  Then you would be comparing apples to apples, rather than sloths
to gazelles.

                                                                Rich