2 Oct
2026
2 Oct
'26
11:51 a.m.
> Date: Thu, 1 Oct 2026 19:49:36 -0400
> From: Paul Koning<paulkoning(a)comcast.net>
> Subject: [cctalk] APL-11 sources
> To:"cctalk@classiccmp.org" <cctalk(a)classiccmp.org>
> Message-ID:<7743C081-B2D1-4788-9E52-AB946F9A1D30@comcast.net>
> Content-Type: text/plain; charset=us-ascii
>
> I was just wandering through some old disk images and spotted something I missed for
years: a directory holding what looks like a set of source files and build scripts for
APL-11.
>
> I have no idea where this came from or why I have it; while I have used APL I have
not used it on a PDP-11, nor ever installed it.
>
> Is this something others already have that is a known to be good version, or should I
go dig through this and verify it, then archive it properly?
>
> paul
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 1 Oct 2026 20:08:37 -0400
> From: Bill Gunshannon<bill.gunshannon(a)hotmail.com>
> Subject: [cctalk] Re: APL-11 sources
> To:cctalk@classiccmp.org
> Message-ID:<SJ0PR11MB5815FB606E1B75ACD17CB39DED892@SJ0PR11MB5815.nam
> prd11.prod.outlook.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
>
> On 10/1/2026 7:49 PM, Paul Koning via cctalk wrote:
>> I was just wandering through some old disk images and spotted something I missed
for years: a directory holding what looks like a set of source files and build scripts for
APL-11.
>>
>> I have no idea where this came from or why I have it; while I have used APL I
have not used it on a PDP-11, nor ever installed it.
>>
>> Is this something others already have that is a known to be good version, or
should I go dig through this and verify it, then archive it properly?
>>
> I would imagine it is the one distributed by DECUS. I have a copy here
> somewhere but I, too, never got around to getting it working. And, yes,
> I know and have used APL on a number of different machines.
>
> bill
>
>
> ------------------------------
>
> Message: 5
> Date: Thu, 1 Oct 2026 20:23:19 -0400
> From: Paul Koning<paulkoning(a)comcast.net>
> Subject: [cctalk] Re: APL-11 sources
> To:"cctalk@classiccmp.org" <cctalk(a)classiccmp.org>
> Cc: Bill Gunshannon<bill.gunshannon(a)hotmail.com>
> Message-ID:<667546B6-EFFE-4C1F-B031-33E0F5CFABEC@comcast.net>
> Content-Type: text/plain; charset=utf-8
>
>
>
>> On Oct 1, 2026, at 8:08 PM, Bill Gunshannon via
cctalk<cctalk(a)classiccmp.org> wrote:
>>
>>
>>
>> On 10/1/2026 7:49 PM, Paul Koning via cctalk wrote:
>>> I was just wandering through some old disk images and spotted something I
missed for years: a directory holding what looks like a set of source files and build
scripts for APL-11.
>>> I have no idea where this came from or why I have it; while I have used APL I
have not used it on a PDP-11, nor ever installed it.
>>> Is this something others already have that is a known to be good version, or
should I go dig through this and verify it, then archive it properly?
>> I would imagine it is the one distributed by DECUS. I have a copy here
>> somewhere but I, too, never got around to getting it working. And, yes,
>> I know and have used APL on a number of different machines.
>>
> Hard to say. The source files don't have copyright headers on them at all, but
there is an "apl11s.doc" file with a DEC copyright; it seems to be a
"support" manual that discusses the internals.
>
> paul
>
> Mark Matlock and I did some work to resurrect the APL-11 that was
> donated to DECUS, for use on later versions of RSX11M+. See details at
> https://rsx11.blogspot.com/2021/02/decus-apl-11-fixes-for-id-space-and.html
> Johnny Billquist did more work on it later, and distributes it by
> his RPM facility for RSX. -- Lee K. Gleason N5ZMR Control-G
> Consultants. lee.gleason(a)gmail.com