24 Dec
2022
24 Dec
'22
12:04 a.m.
Jonathan Gray asked:
Is there an access() system call?
https://minnie.tuhs.org/pipermail/tuhs/2021-November/024657.html
no.
or alarm() and pause() system calls added in the v6
"50 changes"
yes to both
or changes to C such as libS/stdio, unsigned and
typedef which would
later show up in the compiler on the phototypesetter version 7 tape.
https://www.darwinsys.com/history/hist.html
usr/source/c_compiler/ on the unsw3 tape may be close to that compiler,
it isn't the same as the pwb compiler.
The getc and putc man page synopsis look identical to the ones at
https://man.cat-v.org/unix-6th/3/
Section VI differs from https://man.cat-v.org/unix-6th/6/
Mine has (in addition to those in v6)
agen -- generates associative memory drivers
hyphen -- find hyphenated words
lex -- generate programs for simple lexical analysis
ptx -- permuted index
tmac -- -ms macros which is ms(vii) in v6
And from v6 is missing: azel col graph m6 plot quiz sky speak spline tbl tmg
Compared to the v7 lex, the one command line argument is "-code",
equivalent to a first input line of "%-code" which changes the output
prefix from "yy" to "code".
Compared to v6, Section I is missing: eqn, lpr, man, neqn, newgrp,
opr, rc, rev, roff, spell, tee, troff.
But has:
lc (LIL compiler)
mtm (magnetic tape manipulation),
onintr (specify interrupt handling for a command file)
read/open/onend (sequential file read)
req (rewind tape)
sum (sum file)
The one man page I compared is yacc(I) which is missing the '-r'
(ratfor) option present in v6
The manual is typeset, and the inside of the cover page days "This
manual was set by a Grahpic Systems phototypesetter driven by the
troff formatting program under the UNIX system. The text of the
manual was prepared using the ed text editor"
No sign of new archive format.
I have only the manual pages, so I can't speak to the state of C.