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Re: Compile Assembly and C files together

From Martin Gregorie <martin@mydomain.invalid>
Newsgroups comp.sys.raspberry-pi, comp.lang.c, comp.programming
Subject Re: Compile Assembly and C files together
Date 2018-03-11 19:39 +0000
Organization albasani.net
Message-ID <p840md$ud3$1@news.albasani.net> (permalink)
References (12 earlier) <4qi5ad1e85ung94dbqrv20rjro4ga0kpd2@4ax.com> <9oAoC.108778$CZ2.96131@fx39.iad> <p7um12$8mm$1@dont-email.me> <I1BoC.204046$d03.194880@fx37.iad> <AZ6dnUtGy_OfsjnHnZ2dnUU7-KvNnZ2d@giganews.com>

Cross-posted to 3 groups.

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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 
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

Me? I've never even set eyes on a Burroughs B-series mainframe. The 
nearest I came to that sort of experience was using a 2966 that ran two 
very different architectures simultaneously: George 3 and its applications
in a single VM [word addressed RAM using 24 bit words, 6 bit ISO 
character codes, no stack]  and VME/B and its applications in a set of VMs 
[byte addressed RAM, EBCDIC character codes and a stack-based 
architecture] and two operator's consoles - one for G3 and a second for 
VME/B
    

-- 
Martin    | martin at
Gregorie  | gregorie dot org

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Thread

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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