From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/openbios/libgcc/__lshrdi3.c | 59 +++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 qemu/roms/openbios/libgcc/__lshrdi3.c (limited to 'qemu/roms/openbios/libgcc/__lshrdi3.c') diff --git a/qemu/roms/openbios/libgcc/__lshrdi3.c b/qemu/roms/openbios/libgcc/__lshrdi3.c new file mode 100644 index 000000000..4c1a38cd5 --- /dev/null +++ b/qemu/roms/openbios/libgcc/__lshrdi3.c @@ -0,0 +1,59 @@ +/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ +/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU CC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin St, Fifth Floor, Boston, +MA 02110-1301, USA. */ + +#include "libgcc.h" + +#define BITS_PER_UNIT 8 + +struct DIstruct {SItype high, low;}; + +typedef union +{ + struct DIstruct s; + DItype ll; +} DIunion; + +DItype +__lshrdi3 (DItype u, word_type b) +{ + DIunion w; + word_type bm; + DIunion uu; + + if (b == 0) + return u; + + uu.ll = u; + + bm = (sizeof (SItype) * BITS_PER_UNIT) - b; + if (bm <= 0) + { + w.s.high = 0; + w.s.low = (USItype)uu.s.high >> -bm; + } + else + { + USItype carries = (USItype)uu.s.high << bm; + w.s.high = (USItype)uu.s.high >> b; + w.s.low = ((USItype)uu.s.low >> b) | carries; + } + + return w.ll; +} -- cgit 1.2.3-korg