[gambit-list] Using the overflow tests from Hacker's Delight
Bradley Lucier
lucier at math.purdue.edu
Sun May 8 15:43:58 EDT 2005
Marc:
Here are the diffs for _num.scm after I used the overflow tests from
Hacker's Delight. There should be fewer jumps in ##+ and ##-, and
fewer unnecessary calls to ##bignum.*. For example, with the old code
we have
617203464 bytes allocated
and
768376664 bytes allocated
when using binary splitting applied to some series to compute e and pi
to 10,000 digits, but with the new code we have
612389032 bytes allocated
and
764550248 bytes allocated
Not a big difference, but it may help more for other codes.
Brad
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