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| author | John Hauser <jhauser@eecs.berkeley.edu> | 2018-01-26 12:51:15 -0800 |
|---|---|---|
| committer | John Hauser <jhauser@eecs.berkeley.edu> | 2018-01-26 12:51:15 -0800 |
| commit | f74b1e48110ac3a27dd49b787d164e55e42d81d1 (patch) | |
| tree | 036feef8d982dff57c2f7fd6688deb4790865b10 /doc/SoftFloat-history.html | |
| parent | 63d601476b7b2eefe72b1705b942eaa65db8c0bf (diff) | |
| download | berkeley-softfloat-3-f74b1e48110ac3a27dd49b787d164e55e42d81d1.zip berkeley-softfloat-3-f74b1e48110ac3a27dd49b787d164e55e42d81d1.tar.gz berkeley-softfloat-3-f74b1e48110ac3a27dd49b787d164e55e42d81d1.tar.bz2 | |
Release 3e. See "doc/SoftFloat-history.html".
Diffstat (limited to 'doc/SoftFloat-history.html')
| -rw-r--r-- | doc/SoftFloat-history.html | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/doc/SoftFloat-history.html b/doc/SoftFloat-history.html index e7d791b..d81c6bc 100644 --- a/doc/SoftFloat-history.html +++ b/doc/SoftFloat-history.html @@ -7,14 +7,57 @@ <BODY> -<H1>History of Berkeley SoftFloat, to Release 3d</H1> +<H1>History of Berkeley SoftFloat, to Release 3e</H1> <P> John R. Hauser<BR> -2017 August 10<BR> +2018 January 20<BR> </P> +<H3>Release 3e (2018 January)</H3> + +<UL> + +<LI> +Changed the default numeric code for optional rounding mode <CODE>odd</CODE> +(round to odd, also known as <EM>jamming</EM>) from 5 to 6. + +<LI> +Modified the behavior of rounding mode <CODE>odd</CODE> 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> acted the same +as rounding to minimum magnitude. +Now all operations are rounded consistently. + +<LI> +Fixed some errors in the specialization code modeling Intel x86 floating-point, +specifically the integers returned on invalid operations and the propagation of +NaN payloads in a few rare cases. + +<LI> +Added specialization code modeling ARM floating-point, conforming to VFPv2 or +later. + +<LI> +Added an example target for ARM processors. + +<LI> +Fixed a minor bug whereby function <CODE>f16_to_ui64</CODE> might return a +different integer than expected in the case that the floating-point operand is +negative. + +<LI> +Added example target-specific optimization for GCC, employing GCC instrinsics +and support for <NOBR>128-bit</NOBR> integer arithmetic. + +<LI> +Made other minor improvements. + +</UL> + + <H3>Release 3d (2017 August)</H3> <UL> |