Re: Books and other things which cost money to improve performance

George Neuner <gneuner2@comcast.net> sent on July 11th, 2010:
|"On Fri, 9 Jul 2010 10:05:30 -0400 (EDT), Paul Colin Gloster |
|<Colin_Paul_Gloster@ACM.org> wrote: |
| |
|[..] |
| |
|>|" The 486 is still used in embedded systems, but it |
|>|has a different internal architecture and optimization for 486 is |
|>|quite different than for 386. The 486 and original Pentium have much|
|>|more in common internally than do the 386 and 486 (selecting |
|>|Pentium/P5 as the target is a cheap way to make some 486 programs run|
|>|faster)." |
|> |
|>Not that it really matters, but I thought that integer operations were|
|>still quicker on 486s, just like on 386s. |
| |
|Not sure exactly what you mean here. |




What I was referring to was that I thought:
integer operations were faster on a 386 than floating-point operations
on the same machine;
integer operations were faster on a 486 than floating-point operations
on the same machine;
and
floating-point operations were faster on a Pentium than integer
operations on the same machine.


Regards,
P. C. G.

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