Binary Bit Masking

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Nevin
Nevin 2011-11-16
回答： Fangjun Jiang 2018-8-17
What is the easiest way to bit mask a 16 bit binary value to decode different fields (2 bit, 4 bit, etc) with it? Thanks

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Fangjun Jiang
Fangjun Jiang 2011-11-16
bitand(), bitor(),

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Walter Roberson
Walter Roberson 2011-11-16
You could use bitand() and bitshift() too. Or just bitget().
Watch out for the bit numbering order that MATLAB uses.
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Fangjun Jiang
Fangjun Jiang 2011-11-16
You can get multiple bits.
bitget(7,1:3)
thinnawat chumpuwiset
thinnawat chumpuwiset 2018-8-17
i'm still confuse about bitget(), can you describe more detail?

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Fangjun Jiang
Fangjun Jiang 2018-8-17
>> dec2bin(7,8)
ans =
'00000111'
>> bitget(7,1:8)
ans =
1 1 1 0 0 0 0 0

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