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|
#!/usr/local/bin/perl
@l=(
0, 1, 2, 3, 4, 5, 6, 7,
8, 9,10,11,12,13,14,15,
16,17,18,19,20,21,22,23,
24,25,26,27,28,29,30,31
);
@r=(
32,33,34,35,36,37,38,39,
40,41,42,43,44,45,46,47,
48,49,50,51,52,53,54,55,
56,57,58,59,60,61,62,63
);
require 'shifts.pl';
sub PERM_OP
{
local(*a,*b,*t,$n,$m)=@_;
@z=&shift(*a,-$n);
@z=&xor(*b,*z);
@z=&and(*z,$m);
@b=&xor(*b,*z);
@z=&shift(*z,$n);
@a=&xor(*a,*z);
}
@L=@l;
@R=@r;
&PERM_OP(*R,*L,*T,4,0x0f0f0f0f);
&PERM_OP(*L,*R,*T,16,0x0000ffff);
&PERM_OP(*R,*L,*T,2,0x33333333);
&PERM_OP(*L,*R,*T,8,0x00ff00ff);
&PERM_OP(*R,*L,*T,1,0x55555555);
&printit(@L);
&printit(@R);
&PERM_OP(*R,*L,*T,1,0x55555555);
&PERM_OP(*L,*R,*T,8,0x00ff00ff);
&PERM_OP(*R,*L,*T,2,0x33333333);
&PERM_OP(*L,*R,*T,16,0x0000ffff);
&PERM_OP(*R,*L,*T,4,0x0f0f0f0f);
&printit(@L);
&printit(@R);
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