[issue4258] Use 30-bit digits instead of 15-bit digits for Python integers.
Mark Dickinson
report at bugs.python.org
Tue Feb 17 22:56:37 CET 2009
Mark Dickinson <dickinsm at gmail.com> added the comment:
It looks as though Visual Studio 2008 does the 'right' thing, too, at
least in some circumstances. Here's some assembler output (MSVC Express
Edition, 32-bit Windows XP / Macbook Pro).
; 3 : unsigned long long mul(unsigned long x, unsigned long y) {
push ebp
mov ebp, esp
; 4 : return (unsigned long long)x * y;
mov eax, DWORD PTR _x$[ebp]
mov ecx, DWORD PTR _y$[ebp]
mul ecx
; 5 : }
pop ebp
ret 0
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<http://bugs.python.org/issue4258>
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