From: Christian Dreier via TUHS <tuhs@tuhs.org>
To: scj@yaccman.com
Cc: tuhs@tuhs.org, bakul@iitbombay.org
Subject: [TUHS] Re: Circuit design tool mentioned in AT&T Unix promotion
Date: Mon, 13 Feb 2023 10:22:43 +0100 [thread overview]
Message-ID: <df7328bb-eb97-4c9b-7e1f-99bac4cd7124@googlemail.com> (raw)
In-Reply-To: <854dfba0-6cf2-57a4-3995-c57571205d1f@googlemail.com>
Hello Steven,
I have questions about a logic design tool mentioned in an old Unix
promotion by AT&T and apparently presented by you.
Do you have some information about this software? See below for further
details about my question. See also TUHS mailing list:
https://minnie.tuhs.org/pipermail/tuhs/2023-February/thread.html#27724
Best regards,
Christian
Am 10.02.23 um 06:36 schrieb Christian Dreier:
> Hello there,
>
> I recently watched an old Unix promotion video by AT&T on YouTube (AT&T
> Archives: The UNIX Operating System: https://youtu.be/tc4ROCJYbm0) and
> they mention a design tool for integrated circuits (apparently named
> L-Gen or lgen; timestamped link: https://youtu.be/tc4ROCJYbm0?t=1284).
>
> Part of this software is a language implemented with YACC that appears
> to describe the behavior of digital logic, like modern hardware
> description languages, i.e. Verilog and VHDL.
>
> Does anyone have information about this, in particular:
> - Documentation
> - Which projects were realized with this?
> - Source code, if possible
>
> I asked this question on retrocomputing.stackexchange.com (see
> https://retrocomputing.stackexchange.com/q/26301/26615) but so far there
> is no satisfying answer. A "Circuit Design Language" (CDL) is mentioned
> and there is some good information about it but it has another syntax
> (as shown in the video vs. the documentation about CDL) and apparently
> another purpose (description of board wiring vs. logic behavior).
>
> Best regards,
> Christian
next prev parent reply other threads:[~2023-02-13 9:23 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-10 5:36 [TUHS] " Christian Dreier via TUHS
2023-02-10 12:56 ` [TUHS] " Douglas McIlroy
2023-02-10 13:20 ` Clem Cole
2023-02-10 15:03 ` Clem Cole
2023-02-10 15:22 ` Heinz Lycklama
2023-02-10 19:08 ` Lawrence Stewart
2023-02-11 8:06 ` Christian Dreier via TUHS
2023-02-13 9:22 ` Christian Dreier via TUHS [this message]
2023-02-19 21:31 ` Christian Dreier via TUHS
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