|Non-Confidential||PDF version||ARM DUI0375E|
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Describes implementation-defined aspects of the ARM C compiler and C library relating to floating-point operations, as required by the ISO C standard.
floatvalues are represented by IEEE single-precision values
doublevalues are represented by IEEE double-precision values.
long doublequantities the word containing the sign, the exponent, and the most significant part of the mantissa is stored with the lower machine address in big-endian mode and at the higher address in little-endian mode.