3 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
4 push(@INC,"${dir}","${dir}../../perlasm");
8 &asm_init($ARGV[0],"rc5-586.pl");
11 $RC5_32_OFF=($RC5_MAX_ROUNDS+2)*4;
20 &RC5_32_encrypt("RC5_32_encrypt",1);
21 &RC5_32_encrypt("RC5_32_decrypt",0);
22 &cbc("RC5_32_cbc_encrypt","RC5_32_encrypt","RC5_32_decrypt",0,4,5,3,-1,-1);
29 &function_begin_B($name,"");
36 &mov($tmp4,&wparam(0));
39 &comment("Load the 2 words");
40 &mov($A,&DWP(0,$tmp4,"",0));
41 &mov($B,&DWP(4,$tmp4,"",0));
44 &mov($r, &DWP(0,$S,"",0));
50 &add($A, &DWP(4+0,$S,"",0));
51 &add($B, &DWP(4+4,$S,"",0));
53 for ($i=0; $i<$RC5_MAX_ROUNDS; $i++)
56 &mov($tmp1, &DWP(12+$i*8,$S,"",0));
58 &rotl($A, &LB("ecx"));
62 &mov($tmp1, &DWP(16+$i*8,$S,"",0));
64 &rotl($B, &LB("ecx"));
66 if (($i == 7) || ($i == 11))
69 &je(&label("rc5_exit"));
76 &je(&label("rc5_dec_12"));
78 &je(&label("rc5_dec_8"));
79 for ($i=$RC5_MAX_ROUNDS; $i > 0; $i--)
81 &set_label("rc5_dec_$i") if ($i == 12) || ($i == 8);
82 &mov($tmp1, &DWP($i*8+8,$S,"",0));
85 &rotr($B, &LB("ecx"));
88 &mov($tmp1, &DWP($i*8+4,$S,"",0));
91 &rotr($A, &LB("ecx"));
94 &sub($B, &DWP(4+4,$S,"",0));
95 &sub($A, &DWP(4+0,$S,"",0));
98 &set_label("rc5_exit");
99 &mov(&DWP(0,$tmp4,"",0),$A);
100 &mov(&DWP(4,$tmp4,"",0),$B);
107 &function_end_B($name);