From: jnc@mercury.lcs.mit.edu (Noel Chiappa)
To: tuhs@tuhs.org
Cc: jnc@mercury.lcs.mit.edu
Subject: [TUHS] Re: origin of null-terminated strings
Date: Fri, 16 Dec 2022 18:11:44 -0500 (EST) [thread overview]
Message-ID: <20221216231144.62E0518C087@mercury.lcs.mit.edu> (raw)
> From: Bob Supnik
> The PDP11 had .ASCIZ, starting with Macro11 in 1972.
I was just about to report on my results, after a tiny bit of digging, which
included this. The important datum is that PAL-11 (in DEC-11-GGPB-D, "paper
tape software", April 1970, revised March 1971), which _preceded_ Macro-11,
_does not_ include .ASCIZ (although it has .ASCII). My oldest Macro-11 book
(DEC-11-OMACA-B-D, "BATCH-11/DOS-11 Assembler (MACRO-11)", April 1972, revised
March 1973) does have .ASCIZ. So in the DEC PDP-11 universe, it dates from
sometime between 1970 and 1972.
I'm not sure if Bell had any of the DEC paper tape software: "In early 1970 we
proposed acquisition of a PDP-11, which had just been introduced by
Digital. ... an order for a PDP-11 was placed in May. The processor arrived at
the end of the summer, but the PDP-11 was so new a product that no disk was
available until December. In the meantime, a rudimentary, core-only version of
Unix was written using a cross-assembler on the PDP-7." So the .ASCIZ in
Macro-11 wasn't until a couple of years later.
Noel
next reply other threads:[~2022-12-16 23:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-16 23:11 Noel Chiappa [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-12-16 22:26 Douglas McIlroy
2022-12-17 2:03 ` James Frew
2022-12-17 3:42 ` steve jenkin
2022-12-17 17:11 ` Clem Cole
2022-12-17 18:15 ` Tom Lyon
2022-12-17 18:43 ` Clem Cole
2022-12-17 18:46 ` Clem Cole
2022-12-17 19:26 ` Tom Perrine
2022-12-19 4:26 ` Adam Thornton
2022-12-16 3:02 [TUHS] " Douglas McIlroy
2022-12-16 3:14 ` [TUHS] " Ken Thompson
2022-12-16 9:13 ` Dr Iain Maoileoin
2022-12-16 13:42 ` Dan Halbert
2022-12-16 16:10 ` Dan Cross
2022-12-16 16:22 ` Tom Lyon
2022-12-16 16:29 ` Jon Steinhart
2022-12-16 20:12 ` Dave Horsfall
2022-12-16 21:02 ` Warner Losh
2022-12-16 21:13 ` Clem Cole
2022-12-16 21:49 ` Clem Cole
2022-12-17 0:26 ` Phil Budne
2022-12-16 21:18 ` Luther Johnson
2022-12-16 21:20 ` Dan Halbert
2022-12-16 3:17 ` Steve Nickolas
2022-12-16 17:24 ` John P. Linderman
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