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1991-02-11
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ΩSANE Beta Release Version 1.0b4
January 28, 1991
This beta release of ΩSANE obtains substantial speed-up for floating-point
arithmetic through SANE toolbox traps. The speed-up applies to all
Macintosh platforms except the Macintosh LC and the Macintosh IIsi without
FPU. On these new machines, the SANE toolbox traps have comparable
performance to “backpatched” ΩSANE, so we have chosen not to install
on these configurations. ΩSANE will install on a Macintosh IIsi which
does have an FPU, and will provide enhanced performance. Please see the
Release Notes for further details on ΩSANE.
The Version 1.0b1 release revealed an error in the binary<->decimal
conversions which caused an infinite loop (on a vanishingly small set of
input values); many thanks to the people at Language Systems for uncovering
this problem. The bug was fixed in the 1.0b3 release (Version 1.0b2
was an Apple internal release only).
Version 1.0b4 fixes a bug which caused erroneous rounding in certain
(very infrequent) circumstances, and only when halts were enabled.