1 files changed, 193 insertions, 0 deletions

diff --git a/arch/sh/lib/lshrsi3.S b/arch/sh/lib/lshrsi3.S
new file mode 100644
index 000000000000..1e7aaa557130
--- /dev/null
+++ b/arch/sh/lib/lshrsi3.S
@@ -0,0 +1,193 @@
+/* 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  */
+
+!
+! __lshrsi3
+!
+! Entry:
+!
+! r4: Value to shift
+! r5: Shifts
+!
+! Exit:
+!
+! r0: Result
+!
+! Destroys:
+!
+! (none)
+!
+        .global __lshrsi3
+        
+        .align  2
+__lshrsi3:
+        mov     #31,r0
+        and     r0,r5
+        mova    lshrsi3_table,r0
+        mov.b   @(r0,r5),r5
+#ifdef __sh1__
+        add     r5,r0
+        jmp     @r0
+#else
+        braf    r5
+#endif
+        mov     r4,r0
+
+        .align  2
+lshrsi3_table:
+        .byte           lshrsi3_0-lshrsi3_table
+        .byte           lshrsi3_1-lshrsi3_table
+        .byte           lshrsi3_2-lshrsi3_table
+        .byte           lshrsi3_3-lshrsi3_table
+        .byte           lshrsi3_4-lshrsi3_table
+        .byte           lshrsi3_5-lshrsi3_table
+        .byte           lshrsi3_6-lshrsi3_table
+        .byte           lshrsi3_7-lshrsi3_table
+        .byte           lshrsi3_8-lshrsi3_table
+        .byte           lshrsi3_9-lshrsi3_table
+        .byte           lshrsi3_10-lshrsi3_table
+        .byte           lshrsi3_11-lshrsi3_table
+        .byte           lshrsi3_12-lshrsi3_table
+        .byte           lshrsi3_13-lshrsi3_table
+        .byte           lshrsi3_14-lshrsi3_table
+        .byte           lshrsi3_15-lshrsi3_table
+        .byte           lshrsi3_16-lshrsi3_table
+        .byte           lshrsi3_17-lshrsi3_table
+        .byte           lshrsi3_18-lshrsi3_table
+        .byte           lshrsi3_19-lshrsi3_table
+        .byte           lshrsi3_20-lshrsi3_table
+        .byte           lshrsi3_21-lshrsi3_table
+        .byte           lshrsi3_22-lshrsi3_table
+        .byte           lshrsi3_23-lshrsi3_table
+        .byte           lshrsi3_24-lshrsi3_table
+        .byte           lshrsi3_25-lshrsi3_table
+        .byte           lshrsi3_26-lshrsi3_table
+        .byte           lshrsi3_27-lshrsi3_table
+        .byte           lshrsi3_28-lshrsi3_table
+        .byte           lshrsi3_29-lshrsi3_table
+        .byte           lshrsi3_30-lshrsi3_table
+        .byte           lshrsi3_31-lshrsi3_table
+
+lshrsi3_6:
+        shlr2   r0
+lshrsi3_4:
+        shlr2   r0
+lshrsi3_2:
+        rts
+        shlr2   r0
+
+lshrsi3_7:
+        shlr2   r0
+lshrsi3_5:
+        shlr2   r0
+lshrsi3_3:
+        shlr2   r0
+lshrsi3_1:
+        rts
+        shlr    r0
+
+lshrsi3_14:
+        shlr2   r0
+lshrsi3_12:
+        shlr2   r0
+lshrsi3_10:
+        shlr2   r0
+lshrsi3_8:
+        rts
+        shlr8   r0
+
+lshrsi3_15:
+        shlr2   r0
+lshrsi3_13:
+        shlr2   r0
+lshrsi3_11:
+        shlr2   r0
+lshrsi3_9:
+        shlr8   r0
+        rts
+        shlr    r0
+
+lshrsi3_22:
+        shlr2   r0
+lshrsi3_20:
+        shlr2   r0
+lshrsi3_18:
+        shlr2   r0
+lshrsi3_16:
+        rts
+        shlr16  r0
+
+lshrsi3_23:
+        shlr2   r0
+lshrsi3_21:
+        shlr2   r0
+lshrsi3_19:
+        shlr2   r0
+lshrsi3_17:
+        shlr16  r0
+        rts
+        shlr    r0
+
+lshrsi3_30:
+        shlr2   r0
+lshrsi3_28:
+        shlr2   r0
+lshrsi3_26:
+        shlr2   r0
+lshrsi3_24:
+        shlr16  r0
+        rts
+        shlr8   r0
+
+lshrsi3_31:
+        shlr2   r0
+lshrsi3_29:
+        shlr2   r0
+lshrsi3_27:
+        shlr2   r0
+lshrsi3_25:
+        shlr16  r0
+        shlr8   r0
+        rts
+        shlr    r0
+
+lshrsi3_0:
+        rts
+        nop