Xtime calculator

• Two C files for dec or hex format input + output
• function xtime() based on AES - bit-shift to left
• if overflow occurs, bulhar's constant 1B is added via the XOR function

Translation for Windows under MinGW:

gcc dec.c -o dec.exe
gcc hex.c -o hex.exe

Translation for Linux under GCC:

gcc dec.c -o dec
gcc hex.c -o hex

Optional translation:

make
or
make all

Usage or DEC:

Enter numbers from range 0 - 255:
Enter number 1:
10 (your number) 
Enter number 2:
20 (your number)
Xtime result: 136

Usage or HEX:

Enter numbers from range 00-FF:
Enter number 1:
0xAA (your number)
Enter number 2:
0xBB (your number)
Xtime result: 0x56