Splitting unsigned long (newbie)

Hi there,
sorry for my question,i'm newbie.

I have a value like this in an unsigned long variable :

B43D88CD

and want to convert it to :

CD883DB4

like a cross-exchange or mirror :)

it's possible to do that or i need to convert into string and make a routine which replace every char ?

Thanks.
Dave

If you have
unsigned long x = 0xB43D88CD;

Then
y = ( x >> 24 ) & 0xFF;
will get you the 0xB4

Similar use of << and | will allow you to reassemble the bytes in whatever order you want.

Quote:

---

Originally Posted by Salem

If you have
unsigned long x = 0xB43D88CD;

Then
y = ( x >> 24 ) & 0xFF;
will get you the 0xB4

Similar use of << and | will allow you to reassemble the bytes in whatever order you want.

---

Thanks ! i've done that :

y = INJ & 0xFF;
z = y;
y = (INJ >> 8) & 0xFF;
z = (z << 8) | y;
y = (INJ >> 16) & 0xFF;
z = (z << 8) | y;
y = (INJ >> 24) & 0xFF;
z = (z << 8) | y;

where INJ contain the original hex value, and it work !!!
thanks again
Dave