On Jan 30 2017, Peter Maydell <peter.mayd...@linaro.org> wrote: > I guess we need to look more carefully at exactly what the > m68k does for these encodings (maybe have a 'normalize value' > function which squashes them down to whatever the equivalent > non-weird encoding is?).
On the m68k, the concept of pseudo-inf/nan doesn't exist, because the integer bit is don't-care for inf and nan. The combination of a zero integer bit with other non-zero biased exponents is called unnormal, and the 68881/2 will always convert them to normal/denormal/zero on input. (The 68040/60 don't support denormal/unnormal in hardware and lets the support library handle them, which presumably works the same way as the 68881/2.) Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."
