| $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 | |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
| 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. | |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
| 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. | |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
| 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. | |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
| Release 1 (1996 July) | |
| -- Original release. | |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |