onsdag 30 december 2015 skrev Johnny Billquist :
> Ah... And I need to correct myself.
>
> Bob didn't say that the 11/23 didn't have an LTC. He said it didn't have a
> LTCR... So, in short, you cannot disable the LTC interrupt on the 11/23.
> Interesting. Weird. Oh well. I can't find any reference
Ah... And I need to correct myself.
Bob didn't say that the 11/23 didn't have an LTC. He said it didn't have
a LTCR... So, in short, you cannot disable the LTC interrupt on the
11/23. Interesting. Weird. Oh well. I can't find any reference to an
LTCR in the documentation, so it would appear th
Well, Bob definitely nailed why it was halting when set to PDP-11/23
mode. The LTC is the problem, obviously.
However, I think simh is wrong in doing it this way. The KDF11-AA manual
clearly documents that the CPU do handle the BEVENT signal, and traps to
100, unless you remove W4, so why simh
2015-12-30 0:12 GMT+01:00 Bob Supnik :
> Regarding Mark Lind's post:
>
Mattis Lind, not Mark Lind.
>
> It's a simple detective problem. Where does an 11/23 differ from an 11/23+?
>
> If you look in pdp11_defs.h, F-11 based systems are grouped together, and
> CPUT_F is used in most feature defin
Regarding Mark Lind's post:
It's a simple detective problem. Where does an 11/23 differ from an 11/23+?
If you look in pdp11_defs.h, F-11 based systems are grouped together,
and CPUT_F is used in most feature definitions.
#define CPUT_F (CPUT_23|CPUT_23P|CPUT_24) /* all F11's */
