wireguard-openbsd/sys/lib/libkern/softfloat.h, branch jd/queueboostsWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/sys/lib/libkern/softfloat.h?h=jd%2Fqueueboosts2014-06-10T04:16:57Zmop up #ifdef _KERNEL goo; ok miod2014-06-10T04:16:57Zderaadtderaadt@openbsd.org2014-06-10T04:16:57Zurn:sha1:b5be37d2a6fbef83b90ca99497343fa8dbb0f3fcunbreak ieeefp emulation code wrt converting double to unsigned2008-10-07T22:06:29Zmartynasmartynas@openbsd.org2008-10-07T22:06:29Zurn:sha1:a657e0a74dbd34bc3296ba63e7e4836cc1f62aef
long ints for alpha. we've got only one instruction (cvttq) to
convert double-t to quadword, and float64_to_int64 did not take
into account the unsigned conversions
therefore, overflow always occured, and half of the unsigned range
(LONG_MAX .. ULONG_MAX) was broken
introduce roundAndPackInt64NoOverflow and float64_to_int64_no_overflow
for softfloat, that works with unsigned integers as well. note
that this will return zero for nan/inf/oflow/uflow, raising exception
flag
perl is happy now
looked over by miod@
tested by naddy@, and by me on nick@'s alpha
First pass at removing clauses 3 and 4 from NetBSD licenses.2008-06-26T05:42:03Zrayray@openbsd.org2008-06-26T05:42:03Zurn:sha1:d874cce4b1d9fe6b41c9e4f2117a77d8a4a37b92
Not sure what's more surprising: how long it took for NetBSD to
catch up to the rest of the BSDs (including UCB), or the amount of
code that NetBSD has claimed for itself without attributing to the
actual authors.
OK deraadt@
Unifdef NO_IEEE in the libkern softfloat code, and put an appropriate rule2007-12-29T16:59:13Zmiodmiod@openbsd.org2007-12-29T16:59:13Zurn:sha1:0a4c5faf25017076ea35aa8b7ebe5cc6a942ff87
in files.alpha to compensate for NO_IEEE kernels.
This will allow the softfloat code to be used by other platforms than alpha.
IEEE 754 floating point completion code, and implementation of the2002-04-28T20:55:14Zpvalchevpvalchev@openbsd.org2002-04-28T20:55:14Zurn:sha1:433075b677c777521ff41c472a63bf121c105d64
FP_C (Floating Point Control Quadword).
From ross@NetBSD. Added a way to disable it with option NO_IEEE,
which appears on the ramdisks to save space. This affects only
programs compiled with -mieee, and what it essentially does is
enabling infinities and NaNs, instead of generating SIGFPE on
division by zero, overflow, etc.
ok art, deraadt