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authorPaul Mundt <lethal@linux-sh.org>2008-11-18 11:33:48 +0300
committerPaul Mundt <lethal@linux-sh.org>2008-12-22 12:42:53 +0300
commit1aad54a99b6ce316c851ba99b2efe41998cfd37d (patch)
tree287f90771c7da18a0841d40db1c0ce92ea7f5820 /arch/sh/lib/ashrsi3.S
parente9bf51e5ccc7703226c79888603e157066213700 (diff)
downloadlinux-1aad54a99b6ce316c851ba99b2efe41998cfd37d.tar.xz
sh: Migrate necessary libgcc bits in to arch/sh/lib for SUPERH32.
This moves in the necessary libgcc bits for SUPERH32 and drops the libgcc linking for the regular targets. This in turn allows us to rip out quite a few hacks both in sh_ksyms_32 and arch/sh/Makefile. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/lib/ashrsi3.S')
-rw-r--r--arch/sh/lib/ashrsi3.S185
1 files changed, 185 insertions, 0 deletions
diff --git a/arch/sh/lib/ashrsi3.S b/arch/sh/lib/ashrsi3.S
new file mode 100644
index 000000000000..6f3cf46b77c2
--- /dev/null
+++ b/arch/sh/lib/ashrsi3.S
@@ -0,0 +1,185 @@
+/* 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 */
+
+!
+! __ashrsi3
+!
+! Entry:
+!
+! r4: Value to shift
+! r5: Shifts
+!
+! Exit:
+!
+! r0: Result
+!
+! Destroys:
+!
+! (none)
+!
+
+ .global __ashrsi3
+
+ .align 2
+__ashrsi3:
+ mov #31,r0
+ and r0,r5
+ mova ashrsi3_table,r0
+ mov.b @(r0,r5),r5
+#ifdef __sh1__
+ add r5,r0
+ jmp @r0
+#else
+ braf r5
+#endif
+ mov r4,r0
+
+ .align 2
+ashrsi3_table:
+ .byte ashrsi3_0-ashrsi3_table
+ .byte ashrsi3_1-ashrsi3_table
+ .byte ashrsi3_2-ashrsi3_table
+ .byte ashrsi3_3-ashrsi3_table
+ .byte ashrsi3_4-ashrsi3_table
+ .byte ashrsi3_5-ashrsi3_table
+ .byte ashrsi3_6-ashrsi3_table
+ .byte ashrsi3_7-ashrsi3_table
+ .byte ashrsi3_8-ashrsi3_table
+ .byte ashrsi3_9-ashrsi3_table
+ .byte ashrsi3_10-ashrsi3_table
+ .byte ashrsi3_11-ashrsi3_table
+ .byte ashrsi3_12-ashrsi3_table
+ .byte ashrsi3_13-ashrsi3_table
+ .byte ashrsi3_14-ashrsi3_table
+ .byte ashrsi3_15-ashrsi3_table
+ .byte ashrsi3_16-ashrsi3_table
+ .byte ashrsi3_17-ashrsi3_table
+ .byte ashrsi3_18-ashrsi3_table
+ .byte ashrsi3_19-ashrsi3_table
+ .byte ashrsi3_20-ashrsi3_table
+ .byte ashrsi3_21-ashrsi3_table
+ .byte ashrsi3_22-ashrsi3_table
+ .byte ashrsi3_23-ashrsi3_table
+ .byte ashrsi3_24-ashrsi3_table
+ .byte ashrsi3_25-ashrsi3_table
+ .byte ashrsi3_26-ashrsi3_table
+ .byte ashrsi3_27-ashrsi3_table
+ .byte ashrsi3_28-ashrsi3_table
+ .byte ashrsi3_29-ashrsi3_table
+ .byte ashrsi3_30-ashrsi3_table
+ .byte ashrsi3_31-ashrsi3_table
+
+ashrsi3_31:
+ rotcl r0
+ rts
+ subc r0,r0
+
+ashrsi3_30:
+ shar r0
+ashrsi3_29:
+ shar r0
+ashrsi3_28:
+ shar r0
+ashrsi3_27:
+ shar r0
+ashrsi3_26:
+ shar r0
+ashrsi3_25:
+ shar r0
+ashrsi3_24:
+ shlr16 r0
+ shlr8 r0
+ rts
+ exts.b r0,r0
+
+ashrsi3_23:
+ shar r0
+ashrsi3_22:
+ shar r0
+ashrsi3_21:
+ shar r0
+ashrsi3_20:
+ shar r0
+ashrsi3_19:
+ shar r0
+ashrsi3_18:
+ shar r0
+ashrsi3_17:
+ shar r0
+ashrsi3_16:
+ shlr16 r0
+ rts
+ exts.w r0,r0
+
+ashrsi3_15:
+ shar r0
+ashrsi3_14:
+ shar r0
+ashrsi3_13:
+ shar r0
+ashrsi3_12:
+ shar r0
+ashrsi3_11:
+ shar r0
+ashrsi3_10:
+ shar r0
+ashrsi3_9:
+ shar r0
+ashrsi3_8:
+ shar r0
+ashrsi3_7:
+ shar r0
+ashrsi3_6:
+ shar r0
+ashrsi3_5:
+ shar r0
+ashrsi3_4:
+ shar r0
+ashrsi3_3:
+ shar r0
+ashrsi3_2:
+ shar r0
+ashrsi3_1:
+ rts
+ shar r0
+
+ashrsi3_0:
+ rts
+ nop