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Signed binary fraction into signed twos complement with one or two guard bits in the sign.

3 次查看（过去 30 天）
Saulius Janusauskas
评论： Walter Roberson 2018-3-30
Does anyone know a function to convert a given set of numbers (signed fractional eg.: -1.8798734803, 1.0000000 -1.000000 etc..) into something like: sign bit|integer bit|integer bit|.|fractional bit|.....|fractional bit|
any help is valued. Regards

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回答（1 个）

Walter Roberson
Walter Roberson 2018-3-29
  1 个评论
Walter Roberson
Walter Roberson 2018-3-30
signbit = X < 0;
if any(abs(X) >= 2^number_of_integer_bits)
error('Values are too large for that many integer bits');
end
other_bits = dec2bin(abs(X) * 2^number_of_fraction_bits,number_of_integer_bits+number_of_fraction_bits)-'0';
bits = [signbit(:), other_bits];

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