Read number of runs from arguments

aes-32bit/aes.cpp

@@ -188,12 +188,16 @@ void aes(uint8_t *in, uint8_t *out, uint8_t *skey)
 //****************************
 int main(int argc, char* argv[])
 {
+    uint32_t cycles = 1000000;
+
     if (argc > 2) {
         std::cerr << "Invalid number of arguments\n";
         exit(EXIT_FAILURE);
+    } else if (argc == 2) {
+        cycles = std::atoi(argv[1]);
     }
 
-    for (int i = 0; i < 1000000; i++) {
+    for (int i = 0; i < cycles; i++) {
         uint8_t key[16] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff };
         uint8_t in[16] =  { 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x01, 0x23, 0x45, 0x67, 0x89};
         aes(in, in, key);