Re: Possible bug in BREXX parse instruction
Hi Mark, 'That said, the definition for parsing using the PARSE ARG, or ARG commands does not appear to identify the right parenthesis as a special character, as it identifies the left parenthesis.'
Which left parentheses?are you referring?to in that sentence?
Also, the WITH keyword is only valid in a parse of the form: PARSE VALUE expression WITH template The 'with' in Dave Mitchell's example is a variable name.
The correct result of the DAVEMTST?EXEC is the following:
davemtst ? ? ? ? ? ? ? ? ? ? ?
TEST OF () TRIAL 1 ? ? ? ? ? ?
IN1 = // ? ? ? ? ? ? ? ? ? ? ?
IN2 = // ? ? ? ? ? ? ? ? ? ? ?
OUTER=/ TRIAL 1/ ? ? ? ? ? ? ?
TEST OF (1) TRIAL 2 ? ? ? ? ?
IN1 = /1/ ? ? ? ? ? ? ? ? ? ?
IN2 = // ? ? ? ? ? ? ? ? ? ? ?
OUTER=/ TRIAL 2/ ? ? ? ? ? ? ?
TEST OF (1 3) TRIAL 3 ? ? ? ?
IN1 = /1/ ? ? ? ? ? ? ? ? ? ?
IN2 = /3/ ? ? ? ? ? ? ? ? ? ?
OUTER=/ TRIAL3/ ? ? ? ? ? ? ?
Ready; T=0.01/0.01 11:28:05 ?
? Questions?? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
Bob
On Sun, Oct 16, 2022 at 11:10 AM Mark A. Stevens via <marXtevens= [email protected]> wrote: On Sun, Dec 12, 2021 at 07:33 AM, Dave Mitchell wrote:
I seem to have stumbled on a bug in the way the parse instruction works in BREXX? specifically when a pattern is used. Here's a sample exec;
/* test parse */?
? trest = '() trial 1'
? say 'test of () trial 1'
? s = dotell(trest)
? trest = '(1) trial 2'
? say 'test of (1) trial 2'
? s = dotell(trest)
? trest = '(1 3) trial3'
? say 'test of (1 3) trial 3'
? s = dotell(trest)
? exit
?
dotell:
? parse arg with '(' in1 in2 ')' outer
? say 'in1 = /'in1'/'
? say 'in2 = /'in2'/'
? say 'outer=/'outer'/'
? return 0
only the third test works as it should, setting 'in1' to '1', 'in2' to '3' and 'outer' to 'trial 3'. The other two cases set 'in1' to ')' and '1) respectively, 'in2' to 'trial 1' and 'trial 2' and 'outer' to a null string.
With the replacement of the GCCLIB segment, I tried this again, and the results are the same.
I've been looking at the REXX syntax definitions, and Mike's definitive book, trying to understand what the C code should be doing.
That said, the definition for parsing using the PARSE ARG, or ARG commands does not appear to identify the right parenthesis as a special character, as it identifies the left parenthesis.
What did not exist in VM/SP 6, and prior was the 'WITH' parameter. I'm guessing, for lack of documentation and knowledge, this was added to resolve the challenge Dave is talking about.
type davemtst exec a
?
/* test parse */
? trest = '() trial 1'
? say 'test of () trial 1'
? s = dotell(trest)
? trest = '(1) trial 2'
? say 'test of (1) trial 2'
? s = dotell(trest)
? trest = '(1 3) trial3'
? say 'test of (1 3) trial 3'
? s = dotell(trest)
? exit
?
dotell:
? parse arg with '(' in1 in2 ')' outer
? say 'in1 = /'in1'/'
? say 'in2 = /'in2'/'
? say 'outer=/'outer'/'
? return 0
?
Ready; T=0.01/0.01 09:55:08
davemtst
test of () trial 1
in1 = /)/
in2 = /trial 1/
outer=//
test of (1) trial 2
in1 = /1)/
in2 = /trial 2/
outer=//
test of (1 3) trial 3
in1 = /1/
in2 = /3/
outer=/ trial3/
Ready; T=0.04/0.05 09:55:15
?... Mark S.
This ... and $5.00, might get you a cup of coffee. I'm old enough to remember 25 cents, but not a nickel, for a cup.
|
Re: Possible bug in BREXX parse instruction
On Sun, Dec 12, 2021 at 07:33 AM, Dave Mitchell wrote:
I seem to have stumbled on a bug in the way the parse instruction works in BREXX? specifically when a pattern is used. Here's a sample exec;
/* test parse */?
? trest = '() trial 1'
? say 'test of () trial 1'
? s = dotell(trest)
? trest = '(1) trial 2'
? say 'test of (1) trial 2'
? s = dotell(trest)
? trest = '(1 3) trial3'
? say 'test of (1 3) trial 3'
? s = dotell(trest)
? exit
?
dotell:
? parse arg with '(' in1 in2 ')' outer
? say 'in1 = /'in1'/'
? say 'in2 = /'in2'/'
? say 'outer=/'outer'/'
? return 0
only the third test works as it should, setting 'in1' to '1', 'in2' to '3' and 'outer' to 'trial 3'. The other two cases set 'in1' to ')' and '1) respectively, 'in2' to 'trial 1' and 'trial 2' and 'outer' to a null string.
With the replacement of the GCCLIB segment, I tried this again, and the results are the same. I've been looking at the REXX syntax definitions, and Mike's definitive book, trying to understand what the C code should be doing. That said, the definition for parsing using the PARSE ARG, or ARG commands does not appear to identify the right parenthesis as a special character, as it identifies the left parenthesis. What did not exist in VM/SP 6, and prior was the 'WITH' parameter. I'm guessing, for lack of documentation and knowledge, this was added to resolve the challenge Dave is talking about. type davemtst exec a?/* test parse */? trest = '() trial 1'? say 'test of () trial 1'? s = dotell(trest)? trest = '(1) trial 2'? say 'test of (1) trial 2'? s = dotell(trest)? trest = '(1 3) trial3'? say 'test of (1 3) trial 3'? s = dotell(trest)? exit?dotell:? parse arg with '(' in1 in2 ')' outer? say 'in1 = /'in1'/'? say 'in2 = /'in2'/'? say 'outer=/'outer'/'? return 0?Ready; T=0.01/0.01 09:55:08davemtsttest of () trial 1in1 = /)/in2 = /trial 1/outer=//test of (1) trial 2in1 = /1)/in2 = /trial 2/outer=//test of (1 3) trial 3in1 = /1/in2 = /3/outer=/ trial3/Ready; T=0.04/0.05 09:55:15?... Mark S. This ... and $5.00, might get you a cup of coffee. I'm old enough to remember 25 cents, but not a nickel, for a cup.
|
Re: Possible bug in BREXX parse instruction
On Sat, Sep 17, 2022 at 01:48 PM, Mike Gro?mann wrote:
I totally forgot about this topic.?
I'll look at it tomorrow, I promise.?
?
Mike
Any luck in finding time? ?... Mark S.
|
Re: Another Time Zone Question (Sorta)
On Sun, Oct 16, 2022 at 12:28 AM, Dave Wade wrote:
However I notice that there are already some change files for DMKSYS which are for generating an 2-CPU nucleus. I wonder are these redundant?
Dave, I don't have my system available in front of me at the moment but to the best of my recollection those change files were controlling the OPTIONS COPY member, for the support of varying the AP=YES/NO selection in DMKSYS and thus including an extra COPY member in the conditional assembly. Its been a long time since I ran the AP nucleus (because, really what is the point on a single user system and it doesn't perform that well anyway) but as I recall I didn't use the change files and just manually updated the OPTIONS on the A-disk, with an original OPTIONS COPY on one of the original materials disks. Regards, Bob
|
Re: Another Time Zone Question (Sorta)
On Fri 14 Oct 2022 at 20:30:32 -0700, Jim Snellen wrote: I'm guessing on the replace statement, I'm sure there's an IBM manual
that describes how to code these update statements. Later CMS versions have some command where you can edit a file with all updates applied, and where you can create new update files. So I made something similar (much simpler, I expect). I called it VMFEE EXEC. I got some inspiration from VMFASM EXEC S. * * Usage: VMFEE fn ctlfile * VMFEE fn ft ctlfile * * Like VMFASM, update the given ASSEMBLE file with the UPDATES * (given as the fn of the CNTRL file) * but call EE to show the result (using $fn ft A). * * If you don't specify the file type, it is assumed to be ASSEMBLE * like with VMFASM. * * If you save changes, a file "$fn UPDATE" is created. * * If this file already exists when invoking this exec, * the updates are not re-done, but you can edit from where you left * off. * If you don't save changes, the temporary files are removed. * &CONTROL OFF &IF &INDEX LT 3 &GOTO -ARGS2 -ARGS3 &NAME = &1 &FT = &2 &CNTL = &3 &GOTO -ARGDON -ARGS2 &NAME = &1 &FT = ASSEMBLE &CNTL = &2 * -ARGDON &UPNM = $&NAME &ANAME = &UPNM &EDITOR = EE * -STSYS STATE &NAME &FT * &IF &RETCODE EQ 0 &GOTO -STCTL &TYPE *** &NAME &FT NOT FOUND *** &EXIT 1 * -STCTL STATE &CNTL CNTRL * &IF &RETCODE EQ 0 &GOTO -STUPD &TYPE *** &CNTL CNTRL NOT FOUND *** &EXIT 2 * Did we edit this file before? -STUPD &TYPE STATE &ANAME UPDATE A STATE &ANAME UPDATE A &IF &RETCODE EQ 0 &GOTO -DOEDIT * Do the update -FUPD UPDATE &NAME &FT * &CNTL CNTRL * ( CTL STK &IF &RETCODE EQ 40 &ANAME = &NAME &IF &RETCODE GT 12 &IF &RETCODE NE 40 &GOTO -UPDERR * Get most recent update level &IF &READFLAG EQ CONSOLE &GOTO -EXIT &READ ARGS &TEXT = &2 &READ ARGS &ARGS &2 &3 &4 &5 &6 &7 &8 &9 * &BAKFT = BAK&FT COPY &ANAME &FT A = &BAKFT = (REPLACE -DOEDIT &TYPE EDITING &ANAME &FT ... UPDATE &TEXT &EDITOR &ANAME &FT &GLOBAL0 = &RETCODE &TYPE EDITED " &NAME &FT " ... UPDATE " &TEXT " * Automatically generate some update statements from * the differences, and put them in fn UPDATE A. XCOMPARE &ANAME &BAKFT A = &FT = (CMSUPD * Did the user change something? STATE &ANAME UPDATE A &IF &RETCODE EQ 0 &GOTO -UPDATED * Since we didn't edit the file we may as well remove it ERASE &ANAME &FT A ERASE &ANAME &BAKFT A &GOTO -EXIT * -UPDATED &IF &RETCODE EQ 0 &TYPE UPDATE FILE " &ANAME UPDATE A " CREATED -EXIT &EXIT &GLOBAL0 -Olaf. -- ___ "Buying carbon credits is a bit like a serial killer paying someone else to \X/ have kids to make his activity cost neutral." -The BOFH falu.nl@rhialto
|
Re: Another Time Zone Question (Sorta)
Bertram, We handle most things folks throw at us. I’ve updated that page to point out later versions are elsewhere. Dave ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Bertram Moshier
Sent: 16 October 2022 06:50
To: [email protected]
Subject: Re: [h390-vm] Another Time Zone Question (Sorta)? Hello Dave, I got my copy of VM/370 from: I got the URL from YouTube watching the Moshix channel. If these are different, how are they different? Does this group handle both or just one line (VM/CE or SixPack)? ? Bertram (and Jim) ? You don’t say which version of VM you are using! MAINT MEMO B is certainly there on CE1.2 from . ? You still create modifications using update, its just on the latest CE we have provided a separate minidisk, so when we update the system you can quickly put your own modifications back. ? For multiple time zones, you can’t just edit the source because you are using UPDATE. You can either have two mods, or just edit your mod. You could even write and EXEC that generates the update and re-builds the nucleus. ? As for learning about the system, well the original manuals are on BITSAVERS here:- ? ? and the various memos and help files describe what has been added. ? In some ways its similar to the CMS in zVM but in other ways its quite different. So most command line commands in vm/370 are still in zVM but you may not need them. Whilst it has REXX the codebase is totally different….. ? Dave ? ? Hello Jim, I'm logged into Maint and can't find the file MAINT MEMO *.? The Syspro memo doesn't speak to maint memo.? I can't find the vmsetup command. Like you I would create CP with local mods by modifying the source code using the update command, etc. Where do I start to learn this new system. ? Hello All,
I too, like Jay Maynard, am trying to specify the correct time zone for my location.? I know that DMKSYS is where it's specified, and I know that I want to change?
'SYSTIME ZONE=0,LOC=WEST,ID=GMT' to 'SYSTIME ZONE=5,LOC=WEST,ID=EDT'.? I also know the sequence number is 00220000.
In my past life, I would simply edit DMKSYS ASSEMBLE and be on my way.? Now that I know that's the wrong way to do it, I don't quite know the right way using the E-disk for local mods.
I see that MAINT MEMO B says to use VMSETUP CP to establish the search order.? OK, next I see that DMKLCL CNTRL E identifies where the local changes are (by way of filetype I presume).? ?DMKSYS AUXLCL E should contain an entry like 'LCLnnnDK xxx Change SYSTIME macro to reflect local time zone and ID'.? I don't know what values are supposed to be used for nnn and xxx.? What is the significance of DK? It also appears I need to create a file named 'LCLnnnDK MEMO E' which contains a lengthier description of the modification.? Finally, I assume another file is to be created named 'DMKSYS LCLnnnDK E' that contains:
,/ R 00220000 $ 00220000 1? ? ? ? ? ? ? ? ?mm/dd/yy? hh:mm:ss
? ? ? ? ?SYSTIME ZONE=5,LOC=WEST,ID=EDT? ? ? ? ?LCLnnnDK
I'm guessing on the replace statement, I'm sure there's an IBM manual that describes how to code these update statements.?
After all is done I simply - VMFASM DMKSYS DMKLCL
- CP SPOOL PUN *
- CP SPOOL PRT *
- VMFLOAD CPLOAD DMKLCL
- ORDER READER nnnn (for IPL deck)
- IPL 00C CLEAR
- CLOSE RDR
- ORDER RDR nnnn (for print file)
- READCARD CPLOAD MAP?
- LOGOFF
- Re-IPL.
So, that's where I am.? I hope somebody can correct my assumptions and put me on the path to righteousness. (LOL)
PS - Can I have two SYSTIME statements, one for EST and one for EDT?? Is the alternative to rebuild CP each time change?
|
Re: Another Time Zone Question (Sorta)
Bob, That’s certainly the way I used to do it. I suspect in some situations in the “modern world” one might be asked to use UPDATE files simply for change control. However I notice that there are already some change files for DMKSYS which are for generating an 2-CPU nucleus. I wonder are these redundant? Dave ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Bob Polmanter
Sent: 15 October 2022 23:34
To: [email protected]
Subject: Re: [h390-vm] Another Time Zone Question (Sorta)? Jim,
I definitely would not use update files and AUX files in order to manage DMKSYS for the purposes of a time zone change.? I realize that VM/CE may be more or less set up for that, but it doesn't mean you have to use it.? My stance might irritate some but it is just overkill for the purpose.
Keep in mind that the three user modifiable CP modules DMKSYS, DMKRIO, and DMKSNT are meant to be customized for the specific installation.? There is no need to preserve the "untouched original IBM code" for these three modules.? It is expected that a system programmer will alter these three files.
If you like, you can save a copy of the original IBM versions on another minidisk, but in all seriousness I would directly edit any of those three as changes are needed, and simply reassemble them as usual using VMFASM DMKxxx DMKLCL.?? I wouldn't use any update or AUX files for these three.? The only possible case I could see would be that update files do provide a sort of history of changes; if that is important to you then use them.? In lieu of that, you could also keep track of important changes with comments in these three modules as well, as you see fit.
I'm practicing what I am preaching here still to this day, just as I did on my real VM system on real hardware for years, back in the day.
Regards,
Bob
|
Re: Another Time Zone Question (Sorta)
Is it possible to run different Herc systems with their own different VM systems. of course on the same PC or different PC connected by means?
?
I have just done a fresh install to have an "untouched" running under a second Hercules. Of course the port number has to be different from 3270 which is in use by my main system. fc vm370ce.conf vm370ce.bak?????????????????????
Comparing files vm370ce.conf and VM370CE.BAK?? ?
vm370ce.conf???????????????????????????? ?
ARCHMODE??????? S/370????????????????????????? ?
CNSLPORT??????? 3271?????????????????????????? ?
CODEPAGE??????? 819/1047?????????????????????? ?
VM370CE.BAK????????????????????????????? ?
ARCHMODE??????? S/370????????????????????????? ?
CNSLPORT??????? 3270?????????????????????????? ?
CODEPAGE??????? 819/1047?????????????????????? ?
????????????????????????????????????????? ?
|
Re: Another Time Zone Question (Sorta)
Is it possible to run different Herc systems with their own different VM systems. of course on the same PC or different PC connected by means?
Thank you.
You should consider to upgrade to .
Quote from :
Here you will find the VM releases. See the menu to the left.?
We recommend that you use the latest release as it contains many fixes and enhancements.
Older releases are retained so that any regression issues may be checked,
|
Re: Another Time Zone Question (Sorta)
You should consider to upgrade to . Quote from :
VM/370 Releases
Here you will find the VM releases. See the menu to the left.?
We recommend that you use the latest release as it contains many fixes and enhancements.
Older releases are retained so that any regression issues may be checked,
|
Re: Another Time Zone Question (Sorta)
Hello Dave,
I got my copy of VM/370 from:
It is Six Pack 1.3.
I got the URL from YouTube watching the Moshix channel.
If these are different, how are they different?
Does this group handle both or just one line (VM/CE or SixPack)?
Thank you,
Bertram Moshier
Bertram (and Jim) ? You don’t say which version of VM you are using! MAINT MEMO B is certainly there on CE1.2 from . ? You still create modifications using update, its just on the latest CE we have provided a separate minidisk, so when we update the system you can quickly put your own modifications back. ? For multiple time zones, you can’t just edit the source because you are using UPDATE. You can either have two mods, or just edit your mod. You could even write and EXEC that generates the update and re-builds the nucleus. ? As for learning about the system, well the original manuals are on BITSAVERS here:- ?
? and the various memos and help files describe what has been added. ? In some ways its similar to the CMS in zVM but in other ways its quite different. So most command line commands in vm/370 are still in zVM but you may not need them. Whilst it has REXX the codebase is totally different….. ? Dave ? ? Hello Jim, I'm logged into Maint and can't find the file MAINT MEMO *.? The Syspro memo doesn't speak to maint memo.? I can't find the vmsetup command. Like you I would create CP with local mods by modifying the source code using the update command, etc. Where do I start to learn this new system. ? Hello All,
I too, like Jay Maynard, am trying to specify the correct time zone for my location.? I know that DMKSYS is where it's specified, and I know that I want to change?
'SYSTIME ZONE=0,LOC=WEST,ID=GMT' to 'SYSTIME ZONE=5,LOC=WEST,ID=EDT'.? I also know the sequence number is 00220000.
In my past life, I would simply edit DMKSYS ASSEMBLE and be on my way.? Now that I know that's the wrong way to do it, I don't quite know the right way using the E-disk for local mods.
I see that MAINT MEMO B says to use VMSETUP CP to establish the search order.? OK, next I see that DMKLCL CNTRL E identifies where the local changes are (by way of filetype I presume).? ?DMKSYS AUXLCL E should contain an entry like 'LCLnnnDK xxx Change SYSTIME macro to reflect local time zone and ID'.? I don't know what values are supposed to be used for nnn and xxx.? What is the significance of DK? It also appears I need to create a file named 'LCLnnnDK MEMO E' which contains a lengthier description of the modification.? Finally, I assume another file is to be created named 'DMKSYS LCLnnnDK E' that contains:
,/ R 00220000 $ 00220000 1? ? ? ? ? ? ? ? ?mm/dd/yy? hh:mm:ss
? ? ? ? ?SYSTIME ZONE=5,LOC=WEST,ID=EDT? ? ? ? ?LCLnnnDK
I'm guessing on the replace statement, I'm sure there's an IBM manual that describes how to code these update statements.?
After all is done I simply - VMFASM DMKSYS DMKLCL
- CP SPOOL PUN *
- CP SPOOL PRT *
- VMFLOAD CPLOAD DMKLCL
- ORDER READER nnnn (for IPL deck)
- IPL 00C CLEAR
- CLOSE RDR
- ORDER RDR nnnn (for print file)
- READCARD CPLOAD MAP?
- LOGOFF
- Re-IPL.
So, that's where I am.? I hope somebody can correct my assumptions and put me on the path to righteousness. (LOL)
PS - Can I have two SYSTIME statements, one for EST and one for EDT?? Is the alternative to rebuild CP each time change?
|
Re: Another Time Zone Question (Sorta)
Bob,? Thanks again for a great explanation. I’ve used SYSID in the past but didn’t know it was added in VM/ CE.? I better do some more reading!
toggle quoted message
Show quoted text
On Oct 15, 2022, at 6:45 PM, Jim Snellen <jsnellen55@...> wrote:
? Bob, You certainly verified my thinking as that’s the way I did it many years ago. I noticed there were a lot of changes to DMKSYS that were not made via AUX files so I was a little confused. There is no “original” IBM files so that not an issue. In fact, the manual I’m using doesn’t even have the SYSID macro defined.?
As for keeping track of any changes, I always did that manually as well. Thanks for your input.? On Oct 15, 2022, at 6:34 PM, Bob Polmanter <wably@...> wrote:
?Jim,
I definitely would not use update files and AUX files in order to manage DMKSYS for the purposes of a time zone change.? I realize that VM/CE may be more or less set up for that, but it doesn't mean you have to use it.? My stance might irritate some but it is just overkill for the purpose.
Keep in mind that the three user modifiable CP modules DMKSYS, DMKRIO, and DMKSNT are meant to be customized for the specific installation.? There is no need to preserve the "untouched original IBM code" for these three modules.? It is expected that a system programmer will alter these three files.
If you like, you can save a copy of the original IBM versions on another minidisk, but in all seriousness I would directly edit any of those three as changes are needed, and simply reassemble them as usual using VMFASM DMKxxx DMKLCL.?? I wouldn't use any update or AUX files for these three.? The only possible case I could see would be that update files do provide a sort of history of changes; if that is important to you then use them.? In lieu of that, you could also keep track of important changes with comments in these three modules as well, as you see fit.
I'm practicing what I am preaching here still to this day, just as I did on my real VM system on real hardware for years, back in the day.
Regards,
Bob
|
Re: Another Time Zone Question (Sorta)
Bob Polmanter wrote: Jim,
I definitely would not use update files and AUX files
in order to manage DMKSYS for the purposes of a time zone
change. I realize that VM/CE may be more or less set up
for that, but it doesn't mean you have to use it. My stance
might irritate some but it is just overkill for the purpose. FWIW, I agree wholeheartedly: for such a simple change using update files is vast overkill. <snip remainder which I didn't bother reading> -- "Fish" (David B. Trout) Software Development Laboratories mail: fish@...
|
Re: Another Time Zone Question (Sorta)
Jim,
SYSID was added to Sixpack 1.2 via a patch (HRC108DK) and of course is carried forward into VM/CE.? The internals of the change are documented in HRC108DK MEMO.?? Thus, you won't see it in any VM/370 documentation published by IBM.?? Later, SYSID appeared in VM/SP.
If you need to know how to use it or need examples, please ask.? I am not the author of this modification but I do use it and it works perfectly.
Regards,
Bob
|
Re: Another Time Zone Question (Sorta)
Bob, You certainly verified my thinking as that’s the way I did it many years ago. I noticed there were a lot of changes to DMKSYS that were not made via AUX files so I was a little confused. There is no “original” IBM files so that not an issue. In fact, the manual I’m using doesn’t even have the SYSID macro defined.?
As for keeping track of any changes, I always did that manually as well. Thanks for your input.?
toggle quoted message
Show quoted text
On Oct 15, 2022, at 6:34 PM, Bob Polmanter <wably@...> wrote:
?Jim,
I definitely would not use update files and AUX files in order to manage DMKSYS for the purposes of a time zone change.? I realize that VM/CE may be more or less set up for that, but it doesn't mean you have to use it.? My stance might irritate some but it is just overkill for the purpose.
Keep in mind that the three user modifiable CP modules DMKSYS, DMKRIO, and DMKSNT are meant to be customized for the specific installation.? There is no need to preserve the "untouched original IBM code" for these three modules.? It is expected that a system programmer will alter these three files.
If you like, you can save a copy of the original IBM versions on another minidisk, but in all seriousness I would directly edit any of those three as changes are needed, and simply reassemble them as usual using VMFASM DMKxxx DMKLCL.?? I wouldn't use any update or AUX files for these three.? The only possible case I could see would be that update files do provide a sort of history of changes; if that is important to you then use them.? In lieu of that, you could also keep track of important changes with comments in these three modules as well, as you see fit.
I'm practicing what I am preaching here still to this day, just as I did on my real VM system on real hardware for years, back in the day.
Regards,
Bob
|
Re: Another Time Zone Question (Sorta)
Jim,
I definitely would not use update files and AUX files in order to manage DMKSYS for the purposes of a time zone change.? I realize that VM/CE may be more or less set up for that, but it doesn't mean you have to use it.? My stance might irritate some but it is just overkill for the purpose.
Keep in mind that the three user modifiable CP modules DMKSYS, DMKRIO, and DMKSNT are meant to be customized for the specific installation.? There is no need to preserve the "untouched original IBM code" for these three modules.? It is expected that a system programmer will alter these three files.
If you like, you can save a copy of the original IBM versions on another minidisk, but in all seriousness I would directly edit any of those three as changes are needed, and simply reassemble them as usual using VMFASM DMKxxx DMKLCL.?? I wouldn't use any update or AUX files for these three.? The only possible case I could see would be that update files do provide a sort of history of changes; if that is important to you then use them.? In lieu of that, you could also keep track of important changes with comments in these three modules as well, as you see fit.
I'm practicing what I am preaching here still to this day, just as I did on my real VM system on real hardware for years, back in the day.
Regards,
Bob
|
Re: #VMCE #rexx EE goes XEDIT - compiling a wish list
#VMCE
#rexx
On Sat, Oct 15, 2022 at 09:57 AM, Martin Scheffler wrote:
Do you think it is desirable and feasable to have a decent subset of XEDIT as part of VM/370 CE ?
I do. One of the may things on my impossibly long to do list is to try to convert/port THE (The Hessling Editor) to VM/370 CE. ?... Mark S.
|
Re: Another Time Zone Question (Sorta)
Gary, Pretty sure it presents what you ask to the emulated machines. See the TZOFFSET in ?
? Dave ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of gdblodgett
Sent: 15 October 2022 17:05
To: [email protected]
Subject: Re: [h390-vm] Another Time Zone Question (Sorta)? In regards to this issue, I think it boils down to how Hercules obtains the time/date from the host OS, (Linux, Windows, etc), is it local or UTC? That will affect how VM applies the timezone offset.? In the old days when the hardware was powered on the operator would enter the time and date and would toggle the TOD switch or press the Alt/TOD key combination to set the time register.? For a "warm" start VM would read the time register first and prompt the operator for acceptance.? So the question is what is Hercules holding in its virtual hardware time register and how may it be different from a value that an operator would enter the local time. I experimented with this a long while back and got it right, but I? don't remember what it was for sure.? I think it was just making the timezone offset to UTC, 00:00. Sent from whatever device I am using. -------- Original message -------- Date: 10/15/22 7:40 AM (GMT-05:00) Subject: Re: [h390-vm] Another Time Zone Question (Sorta) Bertram (and Jim) ? You don’t say which version of VM you are using! MAINT MEMO B is certainly there on CE1.2 from vm370.org. ? You still create modifications using update, its just on the latest CE we have provided a separate minidisk, so when we update the system you can quickly put your own modifications back. ? For multiple time zones, you can’t just edit the source because you are using UPDATE. You can either have two mods, or just edit your mod. You could even write and EXEC that generates the update and re-builds the nucleus. ? As for learning about the system, well the original manuals are on BITSAVERS here:- ?
? and the various memos and help files describe what has been added. ? In some ways its similar to the CMS in zVM but in other ways its quite different. So most command line commands in vm/370 are still in zVM but you may not need them. Whilst it has REXX the codebase is totally different….. ? Dave ? ? Hello Jim, I'm logged into Maint and can't find the file MAINT MEMO *.? The Syspro memo doesn't speak to maint memo.? I can't find the vmsetup command. Like you I would create CP with local mods by modifying the source code using the update command, etc. Where do I start to learn this new system. ? Hello All,
I too, like Jay Maynard, am trying to specify the correct time zone for my location.? I know that DMKSYS is where it's specified, and I know that I want to change?
'SYSTIME ZONE=0,LOC=WEST,ID=GMT' to 'SYSTIME ZONE=5,LOC=WEST,ID=EDT'.? I also know the sequence number is 00220000.
In my past life, I would simply edit DMKSYS ASSEMBLE and be on my way.? Now that I know that's the wrong way to do it, I don't quite know the right way using the E-disk for local mods.
I see that MAINT MEMO B says to use VMSETUP CP to establish the search order.? OK, next I see that DMKLCL CNTRL E identifies where the local changes are (by way of filetype I presume).? ?DMKSYS AUXLCL E should contain an entry like 'LCLnnnDK xxx Change SYSTIME macro to reflect local time zone and ID'.? I don't know what values are supposed to be used for nnn and xxx.? What is the significance of DK? It also appears I need to create a file named 'LCLnnnDK MEMO E' which contains a lengthier description of the modification.? Finally, I assume another file is to be created named 'DMKSYS LCLnnnDK E' that contains:
,/ R 00220000 $ 00220000 1? ? ? ? ? ? ? ? ?mm/dd/yy? hh:mm:ss
? ? ? ? ?SYSTIME ZONE=5,LOC=WEST,ID=EDT? ? ? ? ?LCLnnnDK
I'm guessing on the replace statement, I'm sure there's an IBM manual that describes how to code these update statements.?
After all is done I simply - VMFASM DMKSYS DMKLCL
- CP SPOOL PUN *
- CP SPOOL PRT *
- VMFLOAD CPLOAD DMKLCL
- ORDER READER nnnn (for IPL deck)
- IPL 00C CLEAR
- CLOSE RDR
- ORDER RDR nnnn (for print file)
- READCARD CPLOAD MAP?
- LOGOFF
- Re-IPL.
So, that's where I am.? I hope somebody can correct my assumptions and put me on the path to righteousness. (LOL)
PS - Can I have two SYSTIME statements, one for EST and one for EDT?? Is the alternative to rebuild CP each time change?
|
Re: Another Time Zone Question (Sorta)
Hi Dave,
In regards to this issue, I think it boils down to how Hercules obtains the time/date from the host OS, (Linux, Windows, etc), is it local or UTC? That will affect how VM applies the timezone offset.?
In the old days when the hardware was powered on the operator would enter the time and date and would toggle the TOD switch or press the Alt/TOD key combination to set the time register.? For a "warm" start VM would read the time register first and prompt the operator for acceptance.?
So the question is what is Hercules holding in its virtual hardware time register and how may it be different from a value that an operator would enter the local time.
I experimented with this a long while back and got it right, but I? don't remember what it was for sure.? I think it was just making the timezone offset to UTC, 00:00.
Regards, Gary
Sent from whatever device I am using.
toggle quoted message
Show quoted text
-------- Original message -------- From: Dave Wade <dave.g4ugm@...> Date: 10/15/22 7:40 AM (GMT-05:00) Subject: Re: [h390-vm] Another Time Zone Question (Sorta)
Bertram (and Jim) ? You don’t say which version of VM you are using! MAINT MEMO B is certainly there on CE1.2 from vm370.org. ? You still create modifications using update, its just on the latest CE we have provided a separate minidisk, so when we update the system you can quickly put your own modifications back. ? For multiple time zones, you can’t just edit the source because you are using UPDATE. You can either have two mods, or just edit your mod. You could even write and EXEC that generates the update and re-builds the nucleus. ? As for learning about the system, well the original manuals are on BITSAVERS here:- ?
? and the various memos and help files describe what has been added. ? In some ways its similar to the CMS in zVM but in other ways its quite different. So most command line commands in vm/370 are still in zVM but you may not need them. Whilst it has REXX the codebase is totally different….. ? Dave ? ? Hello Jim, I'm logged into Maint and can't find the file MAINT MEMO *.? The Syspro memo doesn't speak to maint memo.? I can't find the vmsetup command. Like you I would create CP with local mods by modifying the source code using the update command, etc. Where do I start to learn this new system. ? Hello All,
I too, like Jay Maynard, am trying to specify the correct time zone for my location.? I know that DMKSYS is where it's specified, and I know that I want to change?
'SYSTIME ZONE=0,LOC=WEST,ID=GMT' to 'SYSTIME ZONE=5,LOC=WEST,ID=EDT'.? I also know the sequence number is 00220000.
In my past life, I would simply edit DMKSYS ASSEMBLE and be on my way.? Now that I know that's the wrong way to do it, I don't quite know the right way using the E-disk for local mods.
I see that MAINT MEMO B says to use VMSETUP CP to establish the search order.? OK, next I see that DMKLCL CNTRL E identifies where the local changes are (by way of filetype I presume).? ?DMKSYS AUXLCL E should contain an entry like 'LCLnnnDK xxx Change SYSTIME macro to reflect local time zone and ID'.? I don't know what values are supposed to be used for nnn and xxx.? What is the significance of DK? It also appears I need to create a file named 'LCLnnnDK MEMO E' which contains a lengthier description of the modification.? Finally, I assume another file is to be created named 'DMKSYS LCLnnnDK E' that contains:
,/ R 00220000 $ 00220000 1? ? ? ? ? ? ? ? ?mm/dd/yy? hh:mm:ss
? ? ? ? ?SYSTIME ZONE=5,LOC=WEST,ID=EDT? ? ? ? ?LCLnnnDK
I'm guessing on the replace statement, I'm sure there's an IBM manual that describes how to code these update statements.?
After all is done I simply - VMFASM DMKSYS DMKLCL
- CP SPOOL PUN *
- CP SPOOL PRT *
- VMFLOAD CPLOAD DMKLCL
- ORDER READER nnnn (for IPL deck)
- IPL 00C CLEAR
- CLOSE RDR
- ORDER RDR nnnn (for print file)
- READCARD CPLOAD MAP?
- LOGOFF
- Re-IPL.
So, that's where I am.? I hope somebody can correct my assumptions and put me on the path to righteousness. (LOL)
PS - Can I have two SYSTIME statements, one for EST and one for EDT?? Is the alternative to rebuild CP each time change?
|
Re: Where can I learn how CMS is different ...
Matthew, Like many other enhancements DIAG58 arrived in the VM/370 extensions packages, SEPP and/or BSEPP as confirmed by ?
? which lists it as a feature included from BSEPP.? So it was available prior to VM/SP but only as a paid-for addition. There was also the EDGAR full screen editor which again was a separate product and which made use of DIAG58. I don’t think it survives. I see VM/SP1 ?and SP2 had EDGAR compatibility code in XEDIT which was removed in SP3… ?
? ? Dave ? ?
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> On Behalf Of Matthew T. Kromer
Sent: 15 October 2022 15:24
To: [email protected]
Subject: Re: [h390-vm] Where can I learn how CMS is different ...? 1. XEDIT is a big difference -- having a full screen editor is great 2. REXX nucleus extensions -- I dont THINK VM/370 could load extensions for REXX 3. Fullscreen utilities, e.g. FLIST.? I don't think fullscreen CMS *ever* caught on though. 4. Shared File System.? Hard to say how useful this is for a single-user system.? Probably not very. I'm sure there are some other big changes that I'm glossing over.? The big enabling change was the DIAG X'58' support for fullscreen commands in CP, which I think happened in VM/SP not VM/370, and that change happened in the early 80s, I think. Modern CMS has more utilities to interoperate in an internet environment, but I'd be hard pressed to say "why CMS" if you tried to figure out today what OS you wanted to use.? I think the most compelling case for VM today is to run hundreds of Linux VMs, but even then I'm not at all convinced of the value proposition.? I certainly can't think of anything that CMS *does best* relative to what you're used to with Windows, Linux, or MacOS. ? Hi, For my edification, I'm wondering how (if at all) CMS on the z/VM system is different from the VM/370/SP version of CMS. Where can I learn more about it?
|
Mark A. Stevens
Martin Scheffler
Jim Snellen