11 Nov
2001
11 Nov
'01
7:17 p.m.
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