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Using your functions, my results vary slightly, but are no less
peculiar:
$ grep -A1 sub ex9f
subl 4,ドル %esp
movb 1,ドル -1(%ebp)
--
subl 4,ドル %esp
movb 1,ドル -1(%ebp)
--
subl 24,ドル %esp
movb 1,ドル -22(%ebp)
--
subl 4,ドル %esp
movb 1,ドル -1(%ebp)
--
subl 24,ドル %esp
movb 1,ドル -20(%ebp)
--
subl 24,ドル %esp
movb 1,ドル -19(%ebp)
--
subl 24,ドル %esp
movb 1,ドル -18(%ebp)
--
subl 8,ドル %esp
movb 1,ドル -1(%ebp)
--
subl 24,ドル %esp
movb 1,ドル -16(%ebp)
--
<snip>
On Wed, 2003年02月19日 at 22:58, Greg Lopp wrote:
> Additional mystery :
> void f_1(void) { char car[1]; car[0] = 1;}
> void f_2(void) { char car[2]; car[1] = 1;}
> void f_3(void) { char car[3]; car[2] = 1;}
> void f_4(void) { char car[4]; car[3] = 1;}
> void f_5(void) { char car[5]; car[4] = 1;}
> void f_6(void) { char car[6]; car[5] = 1;}
> void f_7(void) { char car[7]; car[6] = 1;}
> void f_8(void) { char car[8]; car[7] = 1;}
> void f_9(void) { char car[9]; car[8] = 1;}
>
> $ gcc -O0 -S bar.c
> $ grep movb bar.s
> movb 1,ドル-1(%ebp)
> movb 1,ドル-1(%ebp)
> movb 1,ドル-2(%ebp)
> movb 1,ドル-1(%ebp)
> movb 1,ドル-4(%ebp)
> movb 1,ドル-3(%ebp)
> movb 1,ドル-2(%ebp)
> movb 1,ドル-1(%ebp)
> movb 1,ドル-4(%ebp)
>
> There are no other differences between these functions....
> f_1:
> pushl %ebp
> movl %esp,%ebp
> subl 24,ドル%esp
> movb 1,ドル-1(%ebp)
> leave
> ret
>
>
>
>
> _________________________________________________________________________
> Philadelphia Linux Users Group -- http://www.phillylinux.org
> Announcements - http://lists.netisland.net/mailman/listinfo/plug-announce
> General Discussion -- http://lists.netisland.net/mailman/listinfo/plug
--
-mike.h
_________________
mike.h@acm.org
mike.h@stemik.com
__________________________________________
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except for all those other forms that have
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