[forwarded submission from a non-member address
(this is relevant to Dave's talk yesterday on TRIZ) -- rjk]
From: David Turner <[EMAIL PROTECTED]>
Date: 12 Jun 2002 13:51:57 -0500
Subject: Multiplication still slow
To: [EMAIL PROTECTED]
According to GCC:
struct processor_costs athlon_cost = {
1, /* cost of an add instruction */
2, /* cost of a lea instruction */
1, /* variable shift costs */
1, /* constant shift costs */
5, /* cost of starting a multiply */
0, /* cost of multiply per each bit set */
42, /* cost of a divide/mod */
FYI, lea is effectively a 3-arg add.
--
-Dave Turner
Free Software Licensing Guru
