27 Jan
1999
27 Jan
'99
3:18 a.m.
The 9511 was the floating point unit, and the 9512 was for 64-bit integer
arithmetic, I believe. I've actually got one of each of these from back in
the old days. They were sort of a calculator for your computer, in that
they could be operated faster than the cpu could perform the function . . .
MUCH faster.
Dick
----------
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Subject: Re: AMD 9511, 9512, Intel 8231, 8232 wanted,
will trade National
MM57109
Date: Tuesday, January 26, 1999 4:33 PM
>
> > optional 9512 Floating Point (remember these?)
>
> Speaking of which, if anyone has any 9511 or 9512 chips, or the
equivalent
Intel 8231 or
8232, I'd like to get at least one of each.
Speaking of which (:-)), does anyone else remember a 9511 card for the
Apple ][. I found one in a pile of boards that were being thrown out,
along with the manual (including schematic), but without any software.
-tony