[mirror_edk2.git] / StdLib / LibC / Softfloat / softfloat-history.txt

$NetBSD: softfloat-history.txt,v 1.1 2000/06/06 08:15:08 bjh21 Exp $\r
\r
History of Major Changes to SoftFloat, up to Release 2a\r
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John R. Hauser\r
1998 December 16\r
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
Release 2a (1998 December)\r
\r
-- Added functions to convert between 64-bit integers (int64) and all\r
   supported floating-point formats.\r
\r
-- Fixed a bug in all 64-bit-version square root functions except\r
   `float32_sqrt' that caused the result sometimes to be off by 1 unit in\r
   the last place (1 ulp) from what it should be.  (Bug discovered by Paul\r
   Donahue.)\r
\r
-- Improved the makefiles.\r
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
Release 2 (1997 June)\r
\r
-- Created the 64-bit (bits64) version, adding the floatx80 and float128\r
   formats.\r
\r
-- Changed the source directory structure, splitting the sources into a\r
   `bits32' and a `bits64' version.  Renamed `environment.h' to `milieu.h'\r
   (to avoid confusion with environment variables).\r
\r
-- Fixed a small error that caused `float64_round_to_int' often to round the\r
   wrong way in nearest/even mode when the operand was between 2^20 and 2^21\r
   and halfway between two integers.\r
\r
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
Release 1a (1996 July)\r
\r
-- Corrected a mistake that caused borderline underflow cases not to raise\r
   the underflow flag when they should have.  (Problem reported by Doug\r
   Priest.)\r
\r
-- Added the `float_detect_tininess' variable to control whether tininess is\r
   detected before or after rounding.\r
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
Release 1 (1996 July)\r
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-- Original release.\r
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Commit	Line	Data
3352b62b N	1	$NetBSD: softfloat-history.txt,v 1.1 2000/06/06 08:15:08 bjh21 Exp $\r
	2	\r
	3	History of Major Changes to SoftFloat, up to Release 2a\r
	4	\r
	5	John R. Hauser\r
	6	1998 December 16\r
	7	\r
	8	\r
	9	- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
	10	Release 2a (1998 December)\r
	11	\r
	12	-- Added functions to convert between 64-bit integers (int64) and all\r
	13	supported floating-point formats.\r
	14	\r
	15	-- Fixed a bug in all 64-bit-version square root functions except\r
	16	`float32_sqrt' that caused the result sometimes to be off by 1 unit in\r
	17	the last place (1 ulp) from what it should be. (Bug discovered by Paul\r
	18	Donahue.)\r
	19	\r
	20	-- Improved the makefiles.\r
	21	\r
	22	- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
	23	Release 2 (1997 June)\r
	24	\r
	25	-- Created the 64-bit (bits64) version, adding the floatx80 and float128\r
	26	formats.\r
	27	\r
	28	-- Changed the source directory structure, splitting the sources into a\r
	29	`bits32' and a `bits64' version. Renamed `environment.h' to `milieu.h'\r
	30	(to avoid confusion with environment variables).\r
	31	\r
	32	-- Fixed a small error that caused `float64_round_to_int' often to round the\r
	33	wrong way in nearest/even mode when the operand was between 2^20 and 2^21\r
	34	and halfway between two integers.\r
	35	\r
	36	- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
	37	Release 1a (1996 July)\r
	38	\r
	39	-- Corrected a mistake that caused borderline underflow cases not to raise\r
	40	the underflow flag when they should have. (Problem reported by Doug\r
	41	Priest.)\r
	42	\r
	43	-- Added the `float_detect_tininess' variable to control whether tininess is\r
	44	detected before or after rounding.\r
	45	\r
	46	- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
	47	Release 1 (1996 July)\r
	48	\r
	49	-- Original release.\r
	50	\r
	51	- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\r
	52	\r