Re: [PATCH 1/2] softfloat: m68k: infinity is a valid encoding

[Andreas Schwab]

On Apr 29 2020, Laurent Vivier wrote:

> "Since the extended-precision data format has an explicit integer bit, a
> number can be formatted with a nonzero exponent, less than the maximum
> value, and a zero integer bit. The IEEE 754 standard does not define a
> zero integer bit. Such a number is an unnormalized number. Hardware does
> not directly support denormalized and unnormalized numbers, but
> implicitly supports them by trapping them as unimplemented data types,
> allowing efficient conversion in software."

This is supposed to be handled transparently by fpsp040, to be
compatible with the 68881.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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