How do I do unsigned comparsion between two vectors having 1s and 0s?

x =  '10000001000000000000000000000000'

y =  '00000000000001010110001111000000'

Let's say x is the binary representation of a 32-bit unsigned number. y is also same.

I want to have unsigned comparison between both of them. That means x(1) and y(1) are the MSB and the comparsion should start from there till we reach LSB.

Thanks.

Answer 1

[Chunru]

x =  '10000001000000000000000000000000'

x = '10000001000000000000000000000000'

y =  '00000000000001010110001111000000'

y = '00000000000001010110001111000000'

% Convert the binary to decimal
xd = bin2dec(x)

xd = 2.1643e+09

yd = bin2dec(y)

yd = 353216

% compare the decimal number
xd > yd

ans = logical
   1

[Nadatimuj]

Thanks. This works well for the 32-bit. Will it work for 64-bit as well?

[Chunru]

It works forup to 53 binary bits (?).

If you have more bits to compare, you can use symbolic computation:

x =  '0b100000010000000000000000000000001000000000000000000000000011';
y =  '0b000000000000010101100011110000001000000000000000000000000011';
xs = sym(x)

xs = 

580964352065011715

ys = sym(y)

ys = 

94815832244227

isAlways(xs > ys)

ans = logical
   1