Hi. I am trying to convert a matrix into 8 bit binary and then want to apply different bit rotations in different rows.e.g for row 1, 2bits will be rotated right and for row 2, 3 bits right rotation.
M=[2 32 45;3 54 12 98;134 245 69];m1=(str2num(dec2bin(M)));m=reshape(m1,[3 3]);mm=m(:);disp(dec2bin(bit_rotate(m,1),8))% error in this line.
%bitrotation function
function data = bit_rotate(data,nBits) dataBits = log2(double(intmax(class(data)))+1); %# Number of bits in data
nBits = rem(nBits,dataBits); %# No need to rotate by dataBits bits or more
if nBits == 0 %# No bit rotation needed, just return
return end shiftedData = bitshift(data,nBits); %# Bit shift the data
lostData = bitxor(data,bitshift(shiftedData,-nBits)); %# Find the lost bits
rotatedData = bitshift(lostData,nBits-sign(nBits)*dataBits); %# Rotate them
data = shiftedData+rotatedData; %# Add the rotated bits to the shifted bits
end
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