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matlabbit-manipulationmodulusbitwise-xor
John
John

Reputation: 3070

How to represent Bitxor to mod in matlab

I want to implement xor bitwise together. For example, I have two bits pair that are 6 (110) and 3 (011). Now I want to implement bitwise xor of two inputs. It can do by bitxor function in matlab. 

out=bitxor(6,3);%output is 5

But I want to implement the scheme by mod function instead of bitxor. How to do it by matlab?Thank you so much. it is my code

out=mod(6+3,2^3) %2^3 because Galois field is 8 (3 bits)

Upvotes: 1

Views: 198

Answers (1)

Divakar
Divakar

Reputation: 221574

Code

function out = bitxor_alt(n1,n2)

max_digits = ceil(log(max(n1,n2)+1)/log(2));%// max digits binary representation

n1c = dec2bin(n1,max_digits); %// first number as binary in char type
n2c = dec2bin(n2,max_digits); %// second number as binary in char type

n1d = n1c-'0'; %// first number as binary in double type
n2d = n2c-'0'; %// second number as binary in double type

out = bin2dec(num2str(mod(n1d+n2d,2),'%1d')); %// mod used here

return;

Upvotes: 3

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