On Thursday, March 14, 2013 at 11:24 AM, Al Kossow wrote: > forwarded from the classiccmp mailing list > > > -------- Original Message -------- > Subject: SimH, PDP8 OS/8 and RKLFMT hang > Date: Thu, 14 Mar 2013 11:03:47 -0700 > From: Rick Bensene <[email protected]> > Reply-To: General Discussion: On-Topic and Off-Topic Posts > <[email protected]> > To: General Discussion: On-Topic and Off-Topic Posts > <[email protected]> > > I'm running SimH V3.9 on a PC under Windows 7 using the binaries from the > primary SimH website. > I'm running the OS8 distribution on floppy that is packaged on the Simh site. > I attached an 'empty' RK disk drive file as RK0, and tried to run RKLFMT on it > to "format" the drive. > The RKLFMT program asks its questions (which drives to format), then says > "ARE YOU SURE?" and expects a Y or N. If N is typed, the questions about > which drives to format are repeated. If Y is typed, the formatting process > begins. > > On real PDP8/e hardware, it all does what it is supposed to...the drive does a > bunch of writes, then goes back and reads the sectors to verify that they > were written correctly, then prints out a message indicating that the format > passes are complete, and then starts over with the "which disks to format" > question, at which point you can type ^C to exit. > > However, in SimH, the program starts up and asks which drives to format, > and I say "Y" to drive 0, and "N" to the other 7 drives, then the "ARE YOU > SURE?" prompt comes up, and I type "Y", and the Y echoes back, and then it > just sits there. > On real hardware, it takes about 80 seconds to format a drive. I waited > MUCH longer than this to see if the simulated RKLFMT would eventually > come back indicating that it had completed. It didn't.
Hi Rick, Great description. 100% reproducible. The issue was that the initial RK disk operation was completing too quickly. Changing RK_MIN from 10 to 45 allows things to work as expected. The problem is fixed in the latest source at https://github.com/simh/simh/archive/master.zip Pre Compiled binaries are available at: https://github.com/simh/Win32-Development-Binaries/blob/Win32-Development-Binaries/simh-4.0-Beta--2013-03-14-b06505ab.zip - Mark _______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
