12 May
2005
12 May
'05
6:57 a.m.
Subject: Re: What does PUSHJ do?
From: Johnny Billquist <bqt at Update.UU.SE>
Date: Thu, 12 May 2005 10:30:31 +0200 (CEST)
To: cctalk at classiccmp.org
Not a good example. It should really be JMS FOO, and at the label FOO you
need to place a 0, which is overwritten by the return address. (What
assembler do you usually use, btw? Comments come after a slash... :-) )
Mindeye. Neumonics to octal on paper usually. My 8 doesn't have any
mass store not even TTY. I plan to take some EEprom and make a RS08
or other disk equivelent.
Eh? No. The PDP-8/a don't have any stack IOT. Same
set as the 8/e. The
only difference is how some illegal combinations of OPR instructions act.
I've used one that did. Might have been a hack. The 6120 however does
and the DEC purchase spec is clear on that too. It's still done with IOTs.
Allison