/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file 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. In addition to the permissions in the GNU General Public License, the Free Software Foundation gives you unlimited permission to link the compiled version of this file into combinations with other programs, and to distribute those combinations without any restriction coming from the use of this file. (The General Public License restrictions do apply in other respects; for example, they cover modification of the file, and distribution when not linked into a combine executable.) This file 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 this program; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ !! libgcc routines for the Renesas / SuperH SH CPUs. !! Contributed by Steve Chamberlain. !! sac@cygnus.com !! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines !! recoded in assembly by Toshiyasu Morita !! tm@netcom.com /* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and ELF local label prefixes by J"orn Rennecke amylaar@cygnus.com */ /* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ /* n1 < d, but n1 might be larger than d1. */ .global __udiv_qrnnd_16 .balign 8 __udiv_qrnnd_16: div0u cmp/hi r6,r0 bt .Lots .rept 16 div1 r6,r0 .endr extu.w r0,r1 bt 0f add r6,r0 0: rotcl r1 mulu.w r1,r5 xtrct r4,r0 swap.w r0,r0 sts macl,r2 cmp/hs r2,r0 sub r2,r0 bt 0f addc r5,r0 add #-1,r1 bt 0f 1: add #-1,r1 rts add r5,r0 .balign 8 .Lots: sub r5,r0 swap.w r4,r1 xtrct r0,r1 clrt mov r1,r0 addc r5,r0 mov #-1,r1 bf/s 1b shlr16 r1 0: rts nop