squeezing out a little more speed
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b3daeff2bc
commit
398d051849
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@ -207,7 +207,7 @@ aes_encrypt_core:
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eor T1, xREDUCER
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3:
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eor T1, r1
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eor T1, ST01
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eor ST01, T1
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mov T2, ST02
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eor T2, ST03
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@ -216,7 +216,7 @@ aes_encrypt_core:
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eor T2, xREDUCER
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3:
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eor T2, r1
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eor T2, ST02
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eor ST02, T2
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mov T3, ST03
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eor T3, ST00
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@ -225,13 +225,9 @@ aes_encrypt_core:
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eor T3, xREDUCER
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3:
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eor T3, r1
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eor T3, ST03
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eor ST03, T3
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mov ST00, T0
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mov ST01, T1
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mov ST02, T2
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mov ST03, T3
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mov r1, ST10
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eor r1, ST11
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@ -254,7 +250,7 @@ aes_encrypt_core:
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eor T1, xREDUCER
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3:
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eor T1, r1
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eor T1, ST11
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eor ST11, T1
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mov T2, ST12
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eor T2, ST13
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@ -263,7 +259,7 @@ aes_encrypt_core:
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eor T2, xREDUCER
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3:
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eor T2, r1
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eor T2, ST12
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eor ST12, T2
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mov T3, ST13
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eor T3, ST10
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@ -272,12 +268,9 @@ aes_encrypt_core:
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eor T3, xREDUCER
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3:
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eor T3, r1
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eor T3, ST13
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eor ST13, T3
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mov ST10, T0
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mov ST11, T1
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mov ST12, T2
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mov ST13, T3
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mov r1, ST20
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eor r1, ST21
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@ -300,7 +293,7 @@ aes_encrypt_core:
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eor T1, xREDUCER
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3:
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eor T1, r1
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eor T1, ST21
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eor ST21, T1
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mov T2, ST22
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eor T2, ST23
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@ -309,7 +302,7 @@ aes_encrypt_core:
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eor T2, xREDUCER
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3:
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eor T2, r1
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eor T2, ST22
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eor ST22, T2
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mov T3, ST23
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eor T3, ST20
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@ -318,12 +311,9 @@ aes_encrypt_core:
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eor T3, xREDUCER
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3:
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eor T3, r1
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eor T3, ST23
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eor ST23, T3
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mov ST20, T0
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mov ST21, T1
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mov ST22, T2
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mov ST23, T3
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mov r1, ST30
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eor r1, ST31
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@ -346,7 +336,7 @@ aes_encrypt_core:
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eor T1, xREDUCER
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3:
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eor T1, r1
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eor T1, ST31
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eor ST31, T1
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mov T2, ST32
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eor T2, ST33
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@ -355,7 +345,7 @@ aes_encrypt_core:
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eor T2, xREDUCER
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3:
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eor T2, r1
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eor T2, ST32
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eor ST32, T2
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mov T3, ST33
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eor T3, ST30
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@ -364,12 +354,9 @@ aes_encrypt_core:
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eor T3, xREDUCER
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3:
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eor T3, r1
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eor T3, ST33
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eor ST33, T3
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mov ST30, T0
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mov ST31, T1
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mov ST32, T2
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mov ST33, T3
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/* mix colums (rows) done */
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@ -43,6 +43,23 @@ char* fmt_strings[]={"%d", "%3d",
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"0x%X", "0x%2.2X",
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"0%o", "0%3o"};
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void print_help(void){
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puts(
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"gf256_table_gen [-cCbBdhoaApP] [-l min] [-u max]\n"
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" [-f formatstring] [-o file] -r reducer value {values} \n"
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"\n"
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" -c/-C turn C-header on/off (default: on)\n"
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" -b/-B turn braces on/off (defaul: on)\n"
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" -d/-h/-8 print values in decimal/hexadecimal/octal (default: hexadecimal)\n"
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" -a/-a turn alignment on/off (default: on)\n"
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" -p/-P turn base prefix on/off (default: on)\n"
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" -r reducer reducer is the reduction polynomial represented as numeric value\n"
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" -l min starting value for multiplication table (default: 0)\n"
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" -u max upper limit value for multiplication table (default: 255)\n"
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" -f formatstring string for formating the output of a singel multiplicxation\n"
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" -o file outputfile\n"
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}
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int main(int argc, char** argv){
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int i,j;
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int c;
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@ -65,6 +82,7 @@ int main(int argc, char** argv){
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/* These options don't set a flag.
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We distinguish them by their indices. */
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{"help", no_argument , 0, '?'},
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{"reducer", required_argument, 0, 'r'},
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{"min", required_argument, 0, 'l'},
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{"max", required_argument, 0, 'u'},
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@ -76,7 +94,7 @@ int main(int argc, char** argv){
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unsigned long ul_a;
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int columns=8;
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unsigned long ul_reducer=0x1b, max=0xff, min=0x00;
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unsigned long ul_reducer=0x00, max=0xff, min=0x00;
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uint8_t reducer, a;
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char** eptr;
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FILE* of = stdout;
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@ -90,7 +108,7 @@ int main(int argc, char** argv){
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case 'B': print_braces=0; break;
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case 'h': print_base = 1; break;
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case 'd': print_base = 0; break;
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case 'o': print_base = 2; break;
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case '8': print_base = 2; break;
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case 'a': print_align =1; break;
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case 'A': print_align =0; break;
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case 'p': print_prefix=1; break;
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}
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break;
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case 'f': fmt = optarg; break;
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default: break;
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case '?':
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default:
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print_help();
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break;
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}
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}
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reducer = ul_reducer&0xff;
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if(!reducer = ul_reducer&0xff){
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fprintf(stderr, "You must specify a reductionpolynomial!\n", argv[i]);
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return -1;
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}
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if(!fmt)
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fmt = fmt_strings[print_prefix*6+print_base*2+print_align];
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