| /* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
| 2004, 2005 |
| 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 |
| |
| .balign 4 |
| .global __udivsi3 |
| .type __udivsi3, @function |
| div8: |
| div1 r5,r4 |
| div7: |
| div1 r5,r4; div1 r5,r4; div1 r5,r4 |
| div1 r5,r4; div1 r5,r4; div1 r5,r4; rts; div1 r5,r4 |
| |
| divx4: |
| div1 r5,r4; rotcl r0 |
| div1 r5,r4; rotcl r0 |
| div1 r5,r4; rotcl r0 |
| rts; div1 r5,r4 |
| |
| __udivsi3: |
| sts.l pr,@-r15 |
| extu.w r5,r0 |
| cmp/eq r5,r0 |
| bf/s large_divisor |
| div0u |
| swap.w r4,r0 |
| shlr16 r4 |
| bsr div8 |
| shll16 r5 |
| bsr div7 |
| div1 r5,r4 |
| xtrct r4,r0 |
| xtrct r0,r4 |
| bsr div8 |
| swap.w r4,r4 |
| bsr div7 |
| div1 r5,r4 |
| lds.l @r15+,pr |
| xtrct r4,r0 |
| swap.w r0,r0 |
| rotcl r0 |
| rts |
| shlr16 r5 |
| |
| large_divisor: |
| mov #0,r0 |
| xtrct r4,r0 |
| xtrct r0,r4 |
| bsr divx4 |
| rotcl r0 |
| bsr divx4 |
| rotcl r0 |
| bsr divx4 |
| rotcl r0 |
| bsr divx4 |
| rotcl r0 |
| lds.l @r15+,pr |
| rts |
| rotcl r0 |