VAX (Was: Cromemco landmarks)

From: Iggy Drougge <optimus_at_canit.se>
Date: Mon Nov 12 03:17:39 2001

Carlos Murillo skrev:

>>microcode), while the rest were emulated - this subset included 98% of
>>instructions in a typical program. The optional FPU implemented 70
>>instructions and 3 VAX data types, which was another 1.7% of VAX

>Aha! So, if I were doing numerical linear algebra in a uVaxII w/o the
>optional FPU, I could expect performance to be badly hit with respect to the
>0.9 VUP rating.

You mean you actually use your FPU? I thought that was just a dongle for
running NetBSD on 68k Macs. ;-)

>How do I know if my Vaxstation 2000 has the optional FPU? What is
>its model number?

Conversely, NetBSD's notes on system models says this:
"In fact, at the time the 78032 was the first 32-bit microprocessor with both
 memory management and floating point on a single chip. It showed up in many
 system including the MicroVAX II and the VAX 8200."

--
En ligne avec Thor 2.6a.
Among the best Swedish achievements are those that closely combine social and
architectural developments, such as the carefully planned new towns built in
recent years outside Stockholm: V?llingby and Farsta.
   J.M. Richards, Modern Architecture
Received on Mon Nov 12 2001 - 03:17:39 GMT

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