Hex

What is the data type for Hexadecimal?
I would like to know how to do the addition of 2 hexadecimal...
0x50 + 0x60 = 0xB0
how do you write it in c???


How to increment a hexadecimal of 0x10 every time it loops for 10 times...

hi nismo,
i don't think there is any data type for hexadecimal. :-) .
even though u declare and assign decimal values to variables in c, they are invariably translated into hexadecimal values by the compiler . say u have a variable declared as
short int a=127;
this variable when translated (compiled) occupies only one byte and is assigned the value 07fh.So why do u want to try and add hex values when all the calculations can be done in decimal (much easier to understand and implement)?
can u elaborate(justify) the requirement u proposed?
:-)

As for ur code:

short int a=0x50,b=0x60,c; 
c = a+b;

in this case c = 176 decimal which is equivalent to 0b0h.

as for the loop, translate the increment value 0x10 to decimal i.e. 16. to loop it ten times:

short int i,j=0;

for (i=0,i<10,i++)
{
j +=16;                     //this is equivalent to j = j+ 0x10;
}

Actually i want to retrieve the data stored in the SD card which is in FAT16. The data stored in the SD card has the address of hexadecimal. Then i wish to retrieve the data in every single address from 0-0x1FF. Finally i want to see whether the data stored in the address 0x36 is 46(46 is ASCII which is alphabet F). Can you please help me?

how to convert ascii to hex??

^^ for ascii 'digits' (ie 0,1,2,3....9) you simply add 30 to get the hex value.
eg ascii 2 is hex 32.
But for other characters you would need to make a lookup table...