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diff --git a/src/libs/softfloat-3e/testfloat/doc/TestFloat-history.html b/src/libs/softfloat-3e/testfloat/doc/TestFloat-history.html new file mode 100644 index 00000000..1c247de0 --- /dev/null +++ b/src/libs/softfloat-3e/testfloat/doc/TestFloat-history.html @@ -0,0 +1,272 @@ + +<HTML> + +<HEAD> +<TITLE>Berkeley TestFloat History</TITLE> +</HEAD> + +<BODY> + +<H1>History of Berkeley TestFloat, to Release 3e</H1> + +<P> +John R. Hauser<BR> +2018 January 20<BR> +</P> + + +<P> +Releases of Berkeley TestFloat normally parallel those of Berkeley SoftFloat, +on which TestFloat is based. +Each TestFloat release necessarily incorporates all bug fixes from the +corresponding release of SoftFloat. +</P> + + +<H3>Release 3e (2018 January)</H3> + +<UL> + +<LI> +Fixed a problem with the all-in-one <CODE>testfloat</CODE> program whereby +function set <CODE>-all1</CODE> incorrectly also tested the three-operand fused +multiply-add operations. + +<LI> +Modified the expected behavior of rounding mode <CODE>odd</CODE> (jamming) when +rounding to an integer value (either conversion to an integer format or a +‘<CODE>roundToInt</CODE>’ function). +Previously, for those cases only, rounding mode <CODE>odd</CODE> was expected +to act the same as rounding to minimum magnitude. +Now, when rounding to an integer value, the nearest odd integer is expected, +consistent with the round-to-odd result of other operations. + +<LI> +Added options <CODE>-checkInvInts</CODE> and <CODE>-checkAll</CODE> to programs +<CODE>testfloat_ver</CODE> and <CODE>testfloat</CODE>. + +<LI> +Improved the checking of integer results of invalid operations. + +</UL> + + +<H3>Release 3d (2017 August)</H3> + +<UL> + +<LI> +When the all-in-one <CODE>testfloat</CODE> program is compiled to test the C +language’s arithmetic, added the ability to test library functions +<CODE>sqrtf</CODE>, <CODE>sqrtl</CODE>, <CODE>fmaf</CODE>, <CODE>fma</CODE>, +and <CODE>fmal</CODE>, which were added to the <NOBR>C Standard</NOBR> in 1999. + +</UL> + + +<H3>Release 3c (2017 February)</H3> + +<UL> + +<LI> +Added support for testing rounding mode <CODE>odd</CODE> (jamming). + +<LI> +Made support for testing <NOBR>64-bit</NOBR> double-precistion floating-point +be subject to macro <CODE>FLOAT64</CODE> (akin to macros <CODE>FLOAT16</CODE>, +<CODE>EXTFLOAT80</CODE>, and <CODE>FLOAT128</CODE> from before). + +<LI> +Fixed some bugs that caused compilation to fail with certain combinations of +option macro settings. + +<LI> +Corrected the types of two internal variables to be <CODE>sig_atomic_t</CODE> +instead of <CODE>bool</CODE>. + +<LI> +Improved the formatting of some error reports (concerning where lines are +broken when they exceed 79 characters in length). + +</UL> + + +<H3>Release 3b (2016 July)</H3> + +<UL> + +<LI> +Added the ability to test the common <NOBR>16-bit</NOBR> +“half-precision” floating-point format. + +<LI> +Added a <CODE>-seed</CODE> option to programs <CODE>testfloat_gen</CODE>, +<CODE>testfloat</CODE>, and <CODE>testsoftfloat</CODE> for setting the seed for +the pseudo-random number generator used to generate test cases. + +<LI> +Where a specific choice is needed for how tininess is detected on underflow, +changed the default to be the detection of tininess after rounding +(<CODE>-tininessafter</CODE>) instead of before rounding +(<CODE>-tininessbefore</CODE>). + +<LI> +Modified the format of reported discrepancies to show the signs of +floating-point values using <CODE>+</CODE> and <CODE>-</CODE> characters. + +<LI> +Documented the use of the <CODE>INLINE</CODE> macro, and fixed the sources for +the case that function inlining is not supported by the C compiler. + +<LI> +Documented the possible need to define macro <CODE>THREAD_LOCAL</CODE> to match +how the SoftFloat library was built. + +<LI> +Modified the provided Makefiles to allow some options to be overridden from the +<CODE>make</CODE> command. + +</UL> + + +<H3>Release 3a (2015 October)</H3> + +<UL> + +<LI> +Replaced the license text supplied by the University of California, Berkeley, +and fixed some minor build problems. + +</UL> + + +<H3>Release 3 (2015 February)</H3> + +<UL> + +<LI> +Complete rewrite, funded by the University of California, Berkeley, and +consequently having a different use license than earlier releases. +Visible changes included different names for testable functions and command +options. + +<LI> +Reinstated separate programs for generating test cases +(<CODE>testfloat_ver</CODE>) and verifying test results +(<CODE>testfloat_gen</CODE>), as alternatives to the all-in-one +<CODE>testfloat</CODE> program (which remained supported). + +<LI> +Added support for testing conversions between floating-point and unsigned +integers, both <NOBR>32-bit</NOBR> and <NOBR>64-bit</NOBR>. + +<LI> +Added support for testing a fused multiply-add operation, for all testable +floating-point formats except <NOBR>80-bit</NOBR> double-extended-precision. + +<LI> +Added support for testing a fifth rounding mode, <CODE>near_maxMag</CODE> +(round to nearest, with ties to maximum magnitude, away from zero). + +<LI> +Added <CODE>timesoftfloat</CODE> (previously found in the Berkeley SoftFloat +package). + +</UL> + + +<H3>Release 2c (2015 January)</H3> + +<UL> + +<LI> +Fixed mistakes affecting some <NOBR>64-bit</NOBR> processors. + +<LI> +Made minor updates to the documentation, including improved wording for the +legal restrictions on using TestFloat releases <NOBR>through 2c</NOBR> (not +applicable to <NOBR>Release 3</NOBR> or later). + +</UL> + + +<P> +There was never a <NOBR>Release 2b</NOBR>. +</P> + + +<H3>Release 2a (1998 December)</H3> + +<UL> + +<LI> +Added support for testing conversions between floating-point and +<NOBR>64-bit</NOBR> signed integers. + +<LI> +Improved the Makefiles. + +</UL> + + +<H3>Release 2 (1997 June)</H3> + +<UL> + +<LI> +Integrated the generation of test cases and the checking of system results into +a single program. +(Before they were separate programs, normally joined by explicit command-line +pipes.) + +<LI> +Improved the sequence of test cases. + +<LI> +Added support for testing <NOBR>80-bit</NOBR> double-extended-precision and +<NOBR>128-bit</NOBR> quadruple precision. + +<LI> +Made program output more readable, and added new command arguments. + +<LI> +Reduced dependence on the quality of the standard <CODE>rand</CODE> function +for generating test cases. +(Previously naively expected <CODE>rand</CODE> to be able to generate good +random bits for the entire machine word width.) + +<LI> +Created <CODE>testsoftfloat</CODE>, with its own simpler complete software +floating-point (“slowfloat”) for comparison purposes. + +<LI> +Made some changes to the source file structure, including renaming +<CODE>environment.h</CODE> to <CODE>milieu.h</CODE> (to avoid confusion with +environment variables). + +</UL> + + +<H3>Release 1a (1996 July)</H3> + +<UL> + +<LI> +Added the <CODE>-tininessbefore</CODE> and <CODE>-tininessafter</CODE> options +to control whether tininess should be detected before or after rounding. + +</UL> + + +<H3>Release 1 (1996 July)</H3> + +<UL> + +<LI> +Original release. + +</UL> + + +</BODY> + |