From: Tim Rylance <tuhs@tkr.bondplaza.com>
To: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: Re: [TUHS] Happy birthday, John Backus!
Date: Tue, 4 Dec 2018 16:24:17 +0000 [thread overview]
Message-ID: <2DBF1622-0489-4F39-88A5-BCE130732041@tkr.bondplaza.com> (raw)
In-Reply-To: <CAC20D2P6P3jSOY3uC6SVHxdi9SYJBjiExa9=anUGYNVQ+1w+Gg@mail.gmail.com>
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> On 4 Dec 2018, at 14:53, Clem Cole <clemc@ccc.com> wrote:
> On Tue, Dec 4, 2018 at 9:43 AM Noel Chiappa <jnc@mercury.lcs.mit.edu <mailto:jnc@mercury.lcs.mit.edu>> wrote:
> Which brings up an interesting query - I wonder when/what the last compiler written in assembler was?
> Excellent question -- IBM's Fortran-H maybe? circa mid 1970's would be my guess.
> ᐧ
The Fortran H compiler was mostly written in Fortran: 27,415 lines of Fortran and 16,721 lines of assembler according to slide 12 of [1].
There were some language extensions (structures and pointers) to support this, enabled by the secret compiler option XL. They are described in Appendix J of the Program Logic Manual for the compiler [2].
The early-1980s Fortran 77 compiler for the GEC 4090 was written in Babbage, a thin PL/360-like veneer over the raw 4090 instruction set.
[1] http://booksite.elsevier.com/9780120884780/Graduate_Lecture_Slides/Core_Lectures/02FortranH.ppt
[2] http://www.bitsavers.org/pdf/ibm/360/fortran/Y28-6642-3_FortH_PLM_Nov68.pdf
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next prev parent reply other threads:[~2018-12-04 16:33 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-04 14:43 Noel Chiappa
2018-12-04 14:53 ` Clem Cole
2018-12-04 16:24 ` Tim Rylance [this message]
2018-12-04 16:53 ` Clem Cole
2018-12-04 17:46 ` Paul Winalski
2018-12-04 20:59 ` Paul Winalski
2018-12-04 22:49 ` [TUHS] Tandem NSK implementation language (was: Happy birthday, John Backus!) Greg 'groggy' Lehey
2018-12-05 0:08 ` Paul Winalski
2018-12-05 17:49 ` [TUHS] Happy birthday, John Backus! Paul Winalski
2018-12-04 15:18 ` Toby Thain
-- strict thread matches above, loose matches on Subject: below --
2018-12-02 22:17 Dave Horsfall
2018-12-02 22:34 ` Toby Thain
2018-12-03 1:32 ` Rob Pike
2018-12-03 4:11 ` Toby Thain
2018-12-03 4:27 ` Rob Pike
2018-12-03 13:10 ` John P. Linderman
2018-12-03 22:44 ` ron
2018-12-03 16:25 ` Clem Cole
2018-12-03 20:20 ` Paul Winalski
2018-12-03 20:37 ` Clem Cole
2018-12-03 20:46 ` Hellwig Geisse
2018-12-03 22:24 ` Paul Winalski
2018-12-03 23:00 ` Lawrence Stewart
2018-12-04 11:53 ` Tony Finch
2018-12-04 14:23 ` Clem Cole
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