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I'm very impressed - that can't have been trivial. It wasn't clear to me if you'd repurposed the "standalone" supervisor to run in a VM (and that's why I asked what gets IPL'd in the VM). But your

Hi Tony, I wrote entirely new code in the APL supervisor to support 3270s. I replaced the old supervisor code to run 1 APL user in 1 CMS Virtual Machine. All that new code is included in the download

I've seen the code (both 50 years ago on fiche and more recently), but I didn't agree to anything. I built a runtime environment on VM/370 to use that code. I made it work on So you wrote entirely new

Bob, See here: https://codex.retro1.org/start?do=search&id=ibm%3Avm370-lib%3Acp%3Astart&q=2741 All the best, Mark S. Waterbury

Bob, See this manual: https://bitsavers.org/pdf/ibm/370/VM/370/Release_6/GC20-1801-10_VM370_Sysgen_Rel_6_Jan80.pdf Search for "2741" in there. Regards, Mark S. Waterbury

The code I started with is available here: https://computerhistory.org/blog/the-apl-programming-language-source-code/ That code ran in a special environment in OS/360. The runtime environment from

Are you saying that CP has no 2741 support? Someone must have taken it out. The 2741 was a mainstay of VM/370 when it was in its prime. I'm also puzzled about how APL\360 got 3270 support. Certainly

True. Our VM/370 has no linemode terminal support for a 2741. Bob Bolch [email protected]> wrote:

APL\360 Reference Manual (softwarepreservation.org)<https://www.softwarepreservation.org/projects/apl/Books/APL360ReferenceManual> page 88ff describes function editing in APL\360. Seems to work with

What you wrote is reported in the GC26-3847 manual from 1975 but it doesn't seem to work with the version of APL available to us Marco

e.g. [delta4] where delta is the APL delta sign (on key D) would delete line 4 of the current function. to open the editor use the nabla operator. eg. nabla TEST [] ________________________________

deltaN in square brackets deletes a single line in the APL del editor. ________________________________ Sent: Friday, April 12, 2024 9:23 PM To: [email protected] <[email protected]> Subject: Re:

Hey Dave, I remember it is possible to edit APL functions on a full screen 3270 with APL support, but I haven't looked at it in years. I will look into it this week. Bob

Bob, Is there a way to delete a line then? Dave Sent: Friday, April 12, 2024 2:21 PM To: [email protected] Subject: Re: [h390-vm] VM/370 CE - Editing an APL function The version of APL360 that I made

Hm. I should try it with my 3279 S3G-1, which has the APL ROS in it (but not an APL keyboard). -- Jay Maynard

It works OK with C3270! Best regards, René.

The version of APL360 that I made available only has support for PCOMM and the Blue Zone 3270 emulators with their APL features. There is no support for any line mode terminal emulation. Bob Bolch

I downloaded and installed the version found in this group. With PCOMM and the APL keyboard (ctrl-F8)? everything works except what I have already said. I'm pretty sure I read that using a 2741

Correct, APL did not initially support 3270's as these did not yet exist. You needed a 2741 terminal attached via start/stop line.? I know this because my first IT job (early 70's) was in

Marco, I guessed that was the case. Not sure how to proceed. Dave Sent: Friday, April 12, 2024 9:34 AM To: [email protected] Subject: Re: [h390-vm] VM/370 CE - Editing an APL function Yes, by entering