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Re: Compile Assembly and C files together

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Scott Lurndal <scott@slp53.sl.home> wrote:
> Martin Gregorie <martin@mydomain.invalid> writes:
>> On Sat, 10 Mar 2018 13:16:18 -0600, Michael J. Mahon wrote:
>> 
>>> Scott Lurndal <scott@slp53.sl.home> wrote:
>>>> Jack Fearnley <jack@alcor.concordia.ca> writes:
>>>>> On Fri, 09 Mar 2018 18:29:25 +0000, Scott Lurndal wrote:
>>>>> 
>>>>>> Dennis Lee Bieber <wlfraed@ix.netcom.com> writes:
>>>>>>> On Fri, 09 Mar 2018 17:16:19 +0100, David Brown
>>>>>>> <david.brown@hesbynett.no>
>>>>>>> declaimed the following:
>>>>>> 
>>>>>>> <HEH>
>>>>>>> 
>>>>>>> There is always the convention used by Xerox Sigma Fortran-IV.
>>>>>>> Non-recursive, non-stack...
>>>>>>> 
>>>>>>> Arguments were passed by putting them immediately after the CALL
>>>>>>> (branch and link opcode, and referenced by return address (saved in
>>>>>>> a register; I think 15 was the standard) + index.
>>>>>> 
>>>>>> This was very common in the 1970s.   The PDP-8 had similar parameter
>>>>>> passing as did the Burroughs B2500 and descendents until the early
>>>>>> 80's when a re-entrant call (Virtual Enter (VEN)) was added to the
>>>>>> architecture.
>>>>>> 
>>>>>> Unix system calls (UnixV6 on the PDP-11) embedded the system call
>>>>>> arguments in the instruction stream following the system call
>>>>>> instruction.
>>>>>> 
>>>>>> The B2500 system call instruction (BCT) had the following general
>>>>>> form:
>>>>>> 
>>>>>> BCT NNNN           # NNNN selects the system call BUN +Skip # Branch
>>>>>> Unconditional to after the parameters ACON label         # first
>>>>>> parameter (address constant)
>>>>>> DATA 2 UN 01       # second parameter, two digit numeric, value 01
>>>>>> .Skip
>>>>>> 
>>>>>> The operating system would bump the return address by the size of the
>>>>>> branch instruction (8 or 10 digits) to get the parameters.
>>>>> 
>>>>> Even further back. This was the standard method in the IBM1401 which I
>>>>> was programming in 1960.
>>>> 
>>>> The B2500 dates back to 1965, and it did have a 1401 compability mode
>>>> :-)
>>>> 
>>>> 
>>> Not a compatibility mode, but a software emulator (which was little used
>>> by 1967).
>> 
>> From what I've been told about the B2xxx and B3xxx mainframes by people 
> 
> Burroughs had three lines of mainframes:
> 
>   Small Systems (B1700/B1800/B1900)
>   Medium Systems (B2x00/B3x00/B4x00)
>   Large Systems (B5x00/B6x00/B7x00)
> 
>> who were developers on them they went a lot further than that - 
>> effectively providing a set of VMs for running applications in, e.g. 
>> Fortran programs ran in a stack-based environment with word addressed 
>> memory while COBOL programs ran in a (possibly) stack-free environment 
>> with byte-addressed memory. So, if they used VMs that way internally, it 
>> would seem natural if they had a 1401 VM (ant several others for other 
>> architecture
> 
> You're describing the small systems architecture which came along
> in the 70's.
> 
> The B3500 (derived in part from the B300, which history includes the
> electrodata 220) was the first system in the Medium Systems line
> (a BCD machine addressed to the digit, designed to run COBOL).
> 
> The B5500 (follow on to the famous B5000) was the first system in
> the large systems line (36-bit word, stack-based capability architecture;
> buffer overflows are impossible!).
> 
> The Large systems lives on today in the Unisys Clearpath machines
> (emulated on x86).
> 
>> 
>> Me? I've never even set eyes on a Burroughs B-series mainframe. 
> 
> I worked on the medium systems MCP for 7 years, wrote the software
> stack from power-on to system idle, and the data communications stack.
> 

Hi, Scott!  I was in the Medium Systems MCP group from 1968 to 1978—almost
went to Goleta with the B1700 (née B1500) folks!

AOK except that the B5000 line had 48-bit words. ;-)

-- 
-michael - NadaNet 3.1 and AppleCrate II:  http://michaeljmahon.com

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Re: Compile Assembly and C files together "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-03-06 19:20 +0800
  Re: Compile Assembly and C files together druck <news@druck.org.uk> - 2018-03-06 13:53 +0000
    Re: Compile Assembly and C files together Rob Morley <nospam@ntlworld.com> - 2018-03-06 14:59 +0000
      Re: Compile Assembly and C files together David Brown <david.brown@hesbynett.no> - 2018-03-06 16:35 +0100
    Re: Compile Assembly and C files together "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-03-06 23:01 +0800
  Re: Compile Assembly and C files together ray carter <ray@zianet.com> - 2018-03-06 15:44 +0000
    Re: Compile Assembly and C files together "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-03-07 00:07 +0800
      Re: Compile Assembly and C files together Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-03-07 22:39 +0200
        Re: Compile Assembly and C files together "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2018-03-08 18:18 +0800
          Re: Compile Assembly and C files together Martin Gregorie <martin@mydomain.invalid> - 2018-03-08 12:37 +0000
            Re: Compile Assembly and C files together Martin Gregorie <martin@mydomain.invalid> - 2018-03-08 13:13 +0000
              Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-08 13:34 +0000
                Re: Compile Assembly and C files together Martin Gregorie <martin@mydomain.invalid> - 2018-03-08 15:27 +0000
                Re: Compile Assembly and C files together mm0fmf <none@invalid.com> - 2018-03-08 17:33 +0000
                Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-09 09:06 +0000
                Re: Compile Assembly and C files together Richard Kettlewell <invalid@invalid.invalid> - 2018-03-09 09:17 +0000
                Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-09 09:30 +0000
                Re: Compile Assembly and C files together Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-03-09 15:56 +0200
                Re: Compile Assembly and C files together bartc <bc@freeuk.com> - 2018-03-09 14:13 +0000
                Re: Compile Assembly and C files together Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2018-03-09 11:14 -0500
                Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-09 17:44 +0000
                Re: Compile Assembly and C files together David Brown <david.brown@hesbynett.no> - 2018-03-09 17:16 +0100
                Re: Compile Assembly and C files together Robert Wessel <robertwessel2@yahoo.com> - 2018-03-09 11:19 -0600
                Re: Compile Assembly and C files together bartc <bc@freeuk.com> - 2018-03-09 18:11 +0000
                Re: Compile Assembly and C files together Robert Wessel <robertwessel2@yahoo.com> - 2018-03-09 13:41 -0600
                Re: Compile Assembly and C files together David Brown <david.brown@hesbynett.no> - 2018-03-09 19:20 +0100
                Re: Compile Assembly and C files together Robert Wessel <robertwessel2@yahoo.com> - 2018-03-09 13:48 -0600
                Re: Compile Assembly and C files together Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2018-03-09 13:16 -0500
                Re: Compile Assembly and C files together scott@slp53.sl.home (Scott Lurndal) - 2018-03-09 18:29 +0000
                Re: Compile Assembly and C files together Jack Fearnley <jack@alcor.concordia.ca> - 2018-03-09 19:07 +0000
                Re: Compile Assembly and C files together scott@slp53.sl.home (Scott Lurndal) - 2018-03-09 19:13 +0000
                Re: Compile Assembly and C files together Michael J. Mahon <mjmahon@aol.com> - 2018-03-10 13:16 -0600
                Re: Compile Assembly and C files together Martin Gregorie <martin@mydomain.invalid> - 2018-03-11 19:39 +0000
                Re: Compile Assembly and C files together Michael J. Mahon <mjmahon@aol.com> - 2018-03-12 01:16 -0500
                Re: Compile Assembly and C files together David Taylor <david-taylor@blueyonder.co.uk.invalid> - 2018-03-12 06:39 +0000
                Re: Compile Assembly and C files together Martin Gregorie <martin@mydomain.invalid> - 2018-03-12 20:49 +0000
                Re: Compile Assembly and C files together scott@slp53.sl.home (Scott Lurndal) - 2018-03-12 16:11 +0000
                Re: Compile Assembly and C files together Michael J. Mahon <mjmahon@aol.com> - 2018-03-12 14:58 -0500
                Re: Compile Assembly and C files together scott@slp53.sl.home (Scott Lurndal) - 2018-03-12 20:38 +0000
                Re: Compile Assembly and C files together scott@slp53.sl.home (Scott Lurndal) - 2018-03-12 16:06 +0000
                Re: Compile Assembly and C files together Michael J. Mahon <mjmahon@aol.com> - 2018-03-12 14:58 -0500
                Re: Compile Assembly and C files together Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-03-09 21:27 +0200
                Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-09 17:40 +0000
                Re: Compile Assembly and C files together Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-03-09 21:30 +0200
                Re: Compile Assembly and C files together Richard Damon <Richard@Damon-Family.org> - 2018-03-09 13:16 -0500
                Re: Compile Assembly and C files together Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-03-09 21:33 +0200
                Re: Compile Assembly and C files together mm0fmf <none@invalid.com> - 2018-03-09 17:40 +0000
                Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-09 17:47 +0000
                Re: Compile Assembly and C files together mm0fmf <none@invalid.com> - 2018-03-09 18:05 +0000
                Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-09 09:05 +0000
                Re: Compile Assembly and C files together Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-03-09 16:01 +0200
          Re: Compile Assembly and C files together Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-03-08 17:25 +0200
  Re: Compile Assembly and C files together The Natural Philosopher <tnp@invalid.invalid> - 2018-03-07 07:36 +0000

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