MATLAB: How to convert a 64 bit, two’s complement value(binary vector)[ 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] into a signed integer

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How do I convert a 64 bit, two's complement value(binary vector)[ 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1] into a signed integer?

Best Answer

swapbytes(typecast(uint8(bin2dec(char(reshape(fliplr(A),8,[]).' + '0'))),'int64'))

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MATLAB: One’s and two’s complement

a='11001011';
c1=not(a-'0')   % one's complement
d=1;
for k=numel(a):-1:1
  r=d & c1(k);
  c2(1,k)=xor(d,c1(k));  % c2 is two's complement
  d=r;
end
[c1;c2]

MATLAB: How to convert a 24 bit, two’s complement value into a signed integer

s = 2's complement 24-bit string to convert
b = [s([1 1 1 1 1 1 1 1]) s]; % sign extension
k = typecast(uint32(bin2dec(b)),'int32'); % equivalent decimal number

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MATLAB: One’s and two’s complement

MATLAB: How to convert a 24 bit, two’s complement value into a signed integer

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