projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1aad54a9 | 1 | /* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
| 3b041227 | 2 | 2004, 2005 |
| 1aad54a9 PM |
3 | Free Software Foundation, Inc. |
| 4 | ||
| 5 | This file is free software; you can redistribute it and/or modify it | |
| 6 | under the terms of the GNU General Public License as published by the | |
| 7 | Free Software Foundation; either version 2, or (at your option) any | |
| 8 | later version. | |
| 9 | ||
| 10 | In addition to the permissions in the GNU General Public License, the | |
| 11 | Free Software Foundation gives you unlimited permission to link the | |
| 12 | compiled version of this file into combinations with other programs, | |
| 13 | and to distribute those combinations without any restriction coming | |
| 14 | from the use of this file. (The General Public License restrictions | |
| 15 | do apply in other respects; for example, they cover modification of | |
| 16 | the file, and distribution when not linked into a combine | |
| 17 | executable.) | |
| 18 | ||
| 19 | This file is distributed in the hope that it will be useful, but | |
| 20 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 22 | General Public License for more details. | |
| 23 | ||
| 24 | You should have received a copy of the GNU General Public License | |
| 25 | along with this program; see the file COPYING. If not, write to | |
| 26 | the Free Software Foundation, 51 Franklin Street, Fifth Floor, | |
| 27 | Boston, MA 02110-1301, USA. */ | |
| 28 | ||
| 29 | !! libgcc routines for the Renesas / SuperH SH CPUs. | |
| 30 | !! Contributed by Steve Chamberlain. | |
| 31 | !! sac@cygnus.com | |
| 32 | ||
| 1aad54a9 | 33 | .balign 4 |
| 1aad54a9 | 34 | .global __udivsi3 |
| 3b041227 TY |
35 | .type __udivsi3, @function |
| 36 | div8: | |
| 37 | div1 r5,r4 | |
| 38 | div7: | |
| 39 | div1 r5,r4; div1 r5,r4; div1 r5,r4 | |
| 40 | div1 r5,r4; div1 r5,r4; div1 r5,r4; rts; div1 r5,r4 | |
| 41 | ||
| 42 | divx4: | |
| 43 | div1 r5,r4; rotcl r0 | |
| 44 | div1 r5,r4; rotcl r0 | |
| 45 | div1 r5,r4; rotcl r0 | |
| 46 | rts; div1 r5,r4 | |
| 47 | ||
| 48 | __udivsi3: | |
| 49 | sts.l pr,@-r15 | |
| 1aad54a9 | 50 | extu.w r5,r0 |
| 1aad54a9 | 51 | cmp/eq r5,r0 |
| 3b041227 | 52 | bf/s large_divisor |
| 1aad54a9 | 53 | div0u |
| 3b041227 TY |
54 | swap.w r4,r0 |
| 55 | shlr16 r4 | |
| 56 | bsr div8 | |
| 1aad54a9 | 57 | shll16 r5 |
| 3b041227 TY |
58 | bsr div7 |
| 59 | div1 r5,r4 | |
| 60 | xtrct r4,r0 | |
| 61 | xtrct r0,r4 | |
| 62 | bsr div8 | |
| 63 | swap.w r4,r4 | |
| 64 | bsr div7 | |
| 65 | div1 r5,r4 | |
| 66 | lds.l @r15+,pr | |
| 1aad54a9 PM |
67 | xtrct r4,r0 |
| 68 | swap.w r0,r0 | |
| 1aad54a9 | 69 | rotcl r0 |
| 1aad54a9 | 70 | rts |
| 3b041227 | 71 | shlr16 r5 |
| 1aad54a9 | 72 | |
| 3b041227 TY |
73 | large_divisor: |
| 74 | mov #0,r0 | |
| 1aad54a9 | 75 | xtrct r4,r0 |
| 3b041227 TY |
76 | xtrct r0,r4 |
| 77 | bsr divx4 | |
| 78 | rotcl r0 | |
| 79 | bsr divx4 | |
| 80 | rotcl r0 | |
| 81 | bsr divx4 | |
| 82 | rotcl r0 | |
| 83 | bsr divx4 | |
| 84 | rotcl r0 | |
| 85 | lds.l @r15+,pr | |
| 1aad54a9 | 86 | rts |
| 3b041227 | 87 | rotcl r0 |