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193 lines
3.7 KiB
193 lines
3.7 KiB
/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
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2004, 2005, 2006 |
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Free Software Foundation, Inc. |
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This file is free software; you can redistribute it and/or modify it |
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under the terms of the GNU General Public License as published by the |
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Free Software Foundation; either version 2, or (at your option) any |
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later version. |
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In addition to the permissions in the GNU General Public License, the |
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Free Software Foundation gives you unlimited permission to link the |
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compiled version of this file into combinations with other programs, |
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and to distribute those combinations without any restriction coming |
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from the use of this file. (The General Public License restrictions |
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do apply in other respects; for example, they cover modification of |
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the file, and distribution when not linked into a combine |
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executable.) |
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This file is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; see the file COPYING. If not, write to |
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the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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Boston, MA 02110-1301, USA. */ |
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!! libgcc routines for the Renesas / SuperH SH CPUs. |
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!! Contributed by Steve Chamberlain. |
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!! sac@cygnus.com |
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!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines |
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!! recoded in assembly by Toshiyasu Morita |
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!! tm@netcom.com |
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/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and |
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ELF local label prefixes by J"orn Rennecke |
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amylaar@cygnus.com */ |
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! |
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! __lshrsi3 |
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! |
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! Entry: |
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! |
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! r4: Value to shift |
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! r5: Shifts |
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! |
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! Exit: |
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! |
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! r0: Result |
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! |
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! Destroys: |
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! |
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! (none) |
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! |
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.global __lshrsi3 |
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.align 2 |
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__lshrsi3: |
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mov #31,r0 |
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and r0,r5 |
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mova lshrsi3_table,r0 |
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mov.b @(r0,r5),r5 |
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#ifdef __sh1__ |
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add r5,r0 |
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jmp @r0 |
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#else |
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braf r5 |
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#endif |
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mov r4,r0 |
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.align 2 |
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lshrsi3_table: |
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.byte lshrsi3_0-lshrsi3_table |
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.byte lshrsi3_1-lshrsi3_table |
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.byte lshrsi3_2-lshrsi3_table |
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.byte lshrsi3_3-lshrsi3_table |
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.byte lshrsi3_4-lshrsi3_table |
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.byte lshrsi3_5-lshrsi3_table |
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.byte lshrsi3_6-lshrsi3_table |
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.byte lshrsi3_7-lshrsi3_table |
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.byte lshrsi3_8-lshrsi3_table |
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.byte lshrsi3_9-lshrsi3_table |
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.byte lshrsi3_10-lshrsi3_table |
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.byte lshrsi3_11-lshrsi3_table |
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.byte lshrsi3_12-lshrsi3_table |
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.byte lshrsi3_13-lshrsi3_table |
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.byte lshrsi3_14-lshrsi3_table |
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.byte lshrsi3_15-lshrsi3_table |
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.byte lshrsi3_16-lshrsi3_table |
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.byte lshrsi3_17-lshrsi3_table |
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.byte lshrsi3_18-lshrsi3_table |
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.byte lshrsi3_19-lshrsi3_table |
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.byte lshrsi3_20-lshrsi3_table |
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.byte lshrsi3_21-lshrsi3_table |
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.byte lshrsi3_22-lshrsi3_table |
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.byte lshrsi3_23-lshrsi3_table |
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.byte lshrsi3_24-lshrsi3_table |
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.byte lshrsi3_25-lshrsi3_table |
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.byte lshrsi3_26-lshrsi3_table |
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.byte lshrsi3_27-lshrsi3_table |
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.byte lshrsi3_28-lshrsi3_table |
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.byte lshrsi3_29-lshrsi3_table |
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.byte lshrsi3_30-lshrsi3_table |
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.byte lshrsi3_31-lshrsi3_table |
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lshrsi3_6: |
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shlr2 r0 |
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lshrsi3_4: |
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shlr2 r0 |
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lshrsi3_2: |
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rts |
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shlr2 r0 |
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lshrsi3_7: |
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shlr2 r0 |
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lshrsi3_5: |
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shlr2 r0 |
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lshrsi3_3: |
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shlr2 r0 |
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lshrsi3_1: |
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rts |
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shlr r0 |
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lshrsi3_14: |
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shlr2 r0 |
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lshrsi3_12: |
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shlr2 r0 |
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lshrsi3_10: |
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shlr2 r0 |
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lshrsi3_8: |
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rts |
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shlr8 r0 |
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lshrsi3_15: |
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shlr2 r0 |
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lshrsi3_13: |
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shlr2 r0 |
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lshrsi3_11: |
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shlr2 r0 |
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lshrsi3_9: |
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shlr8 r0 |
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rts |
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shlr r0 |
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lshrsi3_22: |
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shlr2 r0 |
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lshrsi3_20: |
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shlr2 r0 |
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lshrsi3_18: |
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shlr2 r0 |
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lshrsi3_16: |
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rts |
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shlr16 r0 |
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lshrsi3_23: |
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shlr2 r0 |
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lshrsi3_21: |
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shlr2 r0 |
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lshrsi3_19: |
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shlr2 r0 |
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lshrsi3_17: |
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shlr16 r0 |
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rts |
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shlr r0 |
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lshrsi3_30: |
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shlr2 r0 |
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lshrsi3_28: |
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shlr2 r0 |
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lshrsi3_26: |
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shlr2 r0 |
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lshrsi3_24: |
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shlr16 r0 |
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rts |
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shlr8 r0 |
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lshrsi3_31: |
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shlr2 r0 |
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lshrsi3_29: |
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shlr2 r0 |
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lshrsi3_27: |
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shlr2 r0 |
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lshrsi3_25: |
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shlr16 r0 |
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shlr8 r0 |
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rts |
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shlr r0 |
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lshrsi3_0: |
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rts |
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nop
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