[TUHS] recreating bj.s for Unix v5

Mark Longridge cubexyz at gmail.com
Sat Jun 13 05:01:51 AEST 2015

Here it is:


Judging by it's small size I figure the original code was assembly language.

On 6/12/15, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
>     > From: Mark Longridge <cubexyz at gmail.com>
>     > My first idea was to grab bj.s from 2.11BSD and assemble it the Unix
> v5
>     > as command. That seems to generate a bunch of errors. Also other
>     > assembly source files don't seem to have .even in them.
> My first question was going to be 'Maybe try an earlier version of the
> source?', but I see there is no earlier version online. Odd. ISTR that some
> of the fun things in V6 came without source, maybe blackjack was the same
> way?
>     > Another idea would be generate the source code from the executable
>     > itself, but there doesn't seem to be a disassembler for early Unix.
> Where's the binary? I'd like to take a look at it, and see if the source
> was
> assembler, or C (there's a C version in the source tree, too). Then I can
> look and see how close it is to that 2.11 source - that may be a
> re-implementation, and totally different.
> 	Noel

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