$NetBSD: softfloat-history.txt,v 1.1 2000/06/06 08:15:08 bjh21 Exp $ | |
History of Major Changes to SoftFloat, up to Release 2a | |
John R. Hauser | |
1998 December 16 | |
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Release 2a (1998 December) | |
-- Added functions to convert between 64-bit integers (int64) and all | |
supported floating-point formats. | |
-- Fixed a bug in all 64-bit-version square root functions except | |
`float32_sqrt' that caused the result sometimes to be off by 1 unit in | |
the last place (1 ulp) from what it should be. (Bug discovered by Paul | |
Donahue.) | |
-- Improved the makefiles. | |
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Release 2 (1997 June) | |
-- Created the 64-bit (bits64) version, adding the floatx80 and float128 | |
formats. | |
-- Changed the source directory structure, splitting the sources into a | |
`bits32' and a `bits64' version. Renamed `environment.h' to `milieu.h' | |
(to avoid confusion with environment variables). | |
-- Fixed a small error that caused `float64_round_to_int' often to round the | |
wrong way in nearest/even mode when the operand was between 2^20 and 2^21 | |
and halfway between two integers. | |
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Release 1a (1996 July) | |
-- Corrected a mistake that caused borderline underflow cases not to raise | |
the underflow flag when they should have. (Problem reported by Doug | |
Priest.) | |
-- Added the `float_detect_tininess' variable to control whether tininess is | |
detected before or after rounding. | |
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Release 1 (1996 July) | |
-- Original release. | |
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