On Tue, 2004-01-13 at 15:06, C. Scott Ananian wrote: > On Tue, 13 Jan 2004, Jerry Haltom wrote: > > > So, which is default on a AMD64 machine? For my machine, I consider 64 > > bit default and 32 bit legacy. :) > > according to the standard document, 32 bit libraries are > default, due to their better memory efficiency for most uses. 64-bit > libraries are used for selected binaries which require large address > space support (i.e., probably not 'ls' or 'diff'.) I wonder if Standards Folk are counting the extra registers in their memory assessment. If gcc is optimized to make good use of them, are the memory req's still as strenuous? I don't know about this stuff at all. :) -s
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