This group is for all folks running the original IBM VM/370 Release 6 operating system (or later (e.g. VMTCE (Community Edition)) on Hercules. Like the other early IBM operating systems this version has always been in the public domain and so can be freely distributed. The base version as supplied by IBM is lacking in many facilities. IBM solved this by providing additional extension products which were licensed and so are not available. There are however many user enhancements available which can be installed. In addition, in order to get users up and running quickly updated "releases" of VM/370 included the most popular updates are available for download, so novices can start to learn VM without having to delve into the system internals. It is intended that this wiki will provide information on the base release and these updates.
The available versions are here :-
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Re: A question about vm/370 print output
#VMCE
Hello! Giving credit where it is due, those two text files were ones I created from printer output runs from my first go round VM/370rel6, and noted the presence of the banner. Dave W confirmed why
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Gregg Levine
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#4019
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Re: A question about vm/370 print output
#VMCE
Dave Wade wrote: [...] The very first printout printed to the printer after an IPL! Understood. Understood. Understood. Understood. Possibly. Possibly not. I don't know! But all I'm referring to by
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Fish Fish
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#4017
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Re: A question about vm/370 print output
#VMCE
I am uploading the print file and the trace log to the "0-Temp" directory on h390-vm. Bob
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Bob Bolch
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#4016
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Re: A question about vm/370 print output
#VMCE
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Dave Wade
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#4015
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Re: A question about vm/370 print output
#VMCE
Except that without looking at the EBCDIC<->ASCII table in use, it may not have been a X'FF' that VM cranked out. Tony H.
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Tony Harminc
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#4014
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Re: A question about vm/370 print output
#VMCE
Mike wrote: <snip> Have you tried doing a CCW trace yet? After powering on Hercules, BEFORE you IPL VM/370, enter the command "t+00e" (or whatever the device address is for your printer). Then once
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Fish Fish
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#4013
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Re: A question about vm/370 print output
#VMCE
Dave Wade wrote: [...] Before you (or Bob? or anyone else) does so however, you should first confirm whether or not it, as I suspect it might, only occurs on the very first printout or not, or whether
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Fish Fish
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#4012
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Re: A question about vm/370 print output
#VMCE
Well VM/SP still does it. I suspect its intended behaviour. If I finish my Spanish homework I will have a look. Dave
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Dave Wade
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#4011
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Re: A question about vm/370 print output
#VMCE
Fish wrote: [...] I suspect VM/370 contains a bug which only occurs on the first printout that is printed after an IPL. VM/370's current behavior is to only issue a form-feed (page eject) at the START
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Fish Fish
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#4010
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Re: A question about vm/370 print output
#VMCE
So I loaded up a basic VM/370 built a long time ago from the starter system and it does it. So no modification, no added software, just as it came from the release tape. It puts the 0xFF on the first
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Dave Wade
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#4009
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Re: A question about vm/370 print output
#VMCE
Mike wrote: Yeah, I think I saw that same sequence myself when I was messing with VM/370 a while back. That's why I think it's VM/370 itself doing it. And I also seem to recall it only does this on
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Fish Fish
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#4008
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Re: A question about vm/370 print output
#VMCE
Bob Bolch wrote: Um, er, uh ... Not any more I'm not! Yeah, that was a definite brain fart. Sorry. :( Most carriage control characters are translated into a series of LF (or CRLF) characters, and the
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Fish Fish
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#4007
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Re: A question about vm/370 print output
#VMCE
Yes, I am sure about 0xff. As a matter of fact, first 5 bytes are 0xff 0x0d 0x0a 0x0d 0x0a and 0x0c which is a form feed. You can see this in files 5664167MEMO.txt and?5664147MEMO.txt which are
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mikeci@...
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#4006
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Re: A question about vm/370 print output
#VMCE
Hi Fish, I am confused. Are you saying that the printer CCW opcodes like: 09 Write space 1 11 Write space 2 89 Write and skip to channel 1 01 Write w/o space are being translated by the 819/1047
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Bob Bolch
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#4005
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Re: A question about vm/370 print output
#VMCE
mikeci@... wrote: I have no idea. Are you sure it's 0xff and not something else? Did you examine it using a hex editor? I do know that when the guest (VM/370 in this case) issues a skip to
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Fish Fish
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#4004
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Re: A question about vm/370 print output
#VMCE
Folks, The first character is 09f on mine. However, remember the host knows nothing of ASCII, its printing in EBCDIC and sending hardware printer control characters to the printer. Hercules is then
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Dave Wade
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#4003
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Re: A question about vm/370 print output
#VMCE
The mainframe printer interface produces channel commands and data which is turned into the file on the host platform. The specifics of the host operating system interface in Hercules controls what
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Bob Bolch
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#4002
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A question about vm/370 print output
#VMCE
I noticed that first byte in the output is 0xff. Is there a reason for this character to be there? I also noticed that there is no end banner. Can this be added?
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mikeci@...
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#4001
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Re: WAKEUP - does a emulation of this module exist
Sorry. I did not actually attempt to use it before I uploaded it. It is from a later version of VM. SCHMAC?? MACLIB?? A1? F??? 80?? 1757??? 176? 1986-04-22 05:45 Somewhere around SP 4/SP
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Mark A. Stevens
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#4000
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Re: WAKEUP - does a emulation of this module exist
MACLIB MAP tells me the SCHMAC MACLIB is not a library. I have had a look and it is full of macros that I can read by eye including the ??EQU that defines the registers. Cannot work out what could
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Anthony Smith
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#3999
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