>Well, when I type .DIR it says
>?ILL-CMD?
Right... no CCL or DCL...
>and when I type .R DIR it says
>?FIL-NOT-FND? (could have different vowels and consonants deleted)
DIR wasn't around at that time...
>When I boot the disk it also asks for a "Scratch" disk in drive 1, which
>is promptly sets DX1=DK
Hmmm... I don't remember early versions of RT allowing command files.
That was something added later... *BUT*, it's possible that the
former owner made some modifications so that it does that at boot.
I remember adding CCL-like code to V2C when I was a student at
WPI back in the 70s...
>Clearly the H27 floppies are RX01 clones although they also have an
>"extended" mode which may allow for double density operation.
>
>More importantly they allow you to format disks :-)
Yep... I have a set myself...
>Oh, and I tried an 11/23 CPU and it wouldn't boot, it halts out with a
>173xxx address.
Yeah, the 11/23 hadn't come along yet, so the code is pretty LSI-11/03
specific.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
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Received on Wed Apr 28 1999 - 14:15:25 BST