fout and flush -- Looks like the V6 version of cr3 - which is using the portable C library which was done before the standard C library.

I bet if you grab the one from 2BSD that should have been updated to V7

On Wed, Nov 8, 2017 at 9:18 PM, Will Senn <will.senn@gmail.com> wrote:

On 11/8/17 1:22 PM, Random832 wrote:

Some of these are for V7 or V6 contemporary PDP-11 Unixes, and most of
them are far simpler than more so you should have little difficulty
getting them working anyway.

Links:
http://minnie.tuhs.org/cgi-bin/utree.pl?file=1BSD/s6/cr3.c
http://minnie.tuhs.org/cgi-bin/utree.pl?file=2BSD/src/cr3.c
http://minnie.tuhs.org/cgi-bin/utree.pl?file=2.9BSD/usr/src/ucb/more.c
http://minnie.tuhs.org/cgi-bin/utree.pl?file=32V/usr/src/cmd/pg.c
http://minnie.tuhs.org/cgi-bin/utree.pl?file=AUSAM/source/S/pg.c
(apparently unrelated to the 32V version)
http://minnie.tuhs.org/cgi-bin/utree.pl?file=SRI-NOSC/s2/pg.c
http://minnie.tuhs.org/cgi-bin/utree.pl?file=OpenSolaris_b135/cmd/pg/pg.c

https://danhalbert.org/more.html - mentions cr3

It makes sense that it used to be paper based and slow on screen.

Regarding the links and old bsd's. The binary cr3 on 1bsd works in v7. Also, the book I'm reading has a c program that does paging. But, I'm always off down the rabbit hole... I tried to compile the cr3.c source and I get this error:

# cc cr3.c
Undefined:
_fout
_flush
_getc
_end

My understanding is that cc includes libc by default, so these must not be in libc. But getc is standard lib, so what am I missing?

Thanks,

Will

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