10 Dec
2005
10 Dec
'05
10:21 p.m.
RCA's CDP1802 had " SEX " ... SEt X register ...
regards, Steven C.
nuggets like
the one you mentioned above. He also mentioned that the
architects
called the sign extend instruction SEX, but management wouldn't have it.
Motorola apparently was less stodgy.
I've heard a similar story about DEC -- the engineers wanted to call the
sign extend instruction on the PDP11 SEX, the management objected and
insisted it was called SXT
The engineers got their own back when the VAX was released. The register
that holds the address used in a transfer on the Unibus that times out is
called the Failed UniBus Address Register (FUBAR). And that one did get
into manuals, printests, etc.
-tony