1/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2   2004, 2005, 2006
3   Free Software Foundation, Inc.
4
5This file is free software; you can redistribute it and/or modify it
6under the terms of the GNU General Public License as published by the
7Free Software Foundation; either version 2, or (at your option) any
8later version.
9
10In addition to the permissions in the GNU General Public License, the
11Free Software Foundation gives you unlimited permission to link the
12compiled version of this file into combinations with other programs,
13and to distribute those combinations without any restriction coming
14from the use of this file.  (The General Public License restrictions
15do apply in other respects; for example, they cover modification of
16the file, and distribution when not linked into a combine
17executable.)
18
19This file is distributed in the hope that it will be useful, but
20WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
22General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; see the file COPYING.  If not, write to
26the Free Software Foundation, 51 Franklin Street, Fifth Floor,
27Boston, MA 02110-1301, USA.  */
28
29!! libgcc routines for the Renesas / SuperH SH CPUs.
30!! Contributed by Steve Chamberlain.
31!! sac@cygnus.com
32
33!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
34!! recoded in assembly by Toshiyasu Morita
35!! tm@netcom.com
36
37/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
38   ELF local label prefixes by J"orn Rennecke
39   amylaar@cygnus.com  */
40
41!
42! __ashlsi3
43!
44! Entry:
45!
46! r4: Value to shift
47! r5: Shifts
48!
49! Exit:
50!
51! r0: Result
52!
53! Destroys:
54!
55! (none)
56!
57	.global	__ashlsi3
58
59	.align	2
60__ashlsi3:
61	mov	#31,r0
62	and	r0,r5
63	mova	ashlsi3_table,r0
64	mov.b	@(r0,r5),r5
65#ifdef __sh1__
66	add	r5,r0
67	jmp	@r0
68#else
69	braf	r5
70#endif
71	mov	r4,r0
72
73	.align	2
74ashlsi3_table:
75	.byte		ashlsi3_0-ashlsi3_table
76	.byte		ashlsi3_1-ashlsi3_table
77	.byte		ashlsi3_2-ashlsi3_table
78	.byte		ashlsi3_3-ashlsi3_table
79	.byte		ashlsi3_4-ashlsi3_table
80	.byte		ashlsi3_5-ashlsi3_table
81	.byte		ashlsi3_6-ashlsi3_table
82	.byte		ashlsi3_7-ashlsi3_table
83	.byte		ashlsi3_8-ashlsi3_table
84	.byte		ashlsi3_9-ashlsi3_table
85	.byte		ashlsi3_10-ashlsi3_table
86	.byte		ashlsi3_11-ashlsi3_table
87	.byte		ashlsi3_12-ashlsi3_table
88	.byte		ashlsi3_13-ashlsi3_table
89	.byte		ashlsi3_14-ashlsi3_table
90	.byte		ashlsi3_15-ashlsi3_table
91	.byte		ashlsi3_16-ashlsi3_table
92	.byte		ashlsi3_17-ashlsi3_table
93	.byte		ashlsi3_18-ashlsi3_table
94	.byte		ashlsi3_19-ashlsi3_table
95	.byte		ashlsi3_20-ashlsi3_table
96	.byte		ashlsi3_21-ashlsi3_table
97	.byte		ashlsi3_22-ashlsi3_table
98	.byte		ashlsi3_23-ashlsi3_table
99	.byte		ashlsi3_24-ashlsi3_table
100	.byte		ashlsi3_25-ashlsi3_table
101	.byte		ashlsi3_26-ashlsi3_table
102	.byte		ashlsi3_27-ashlsi3_table
103	.byte		ashlsi3_28-ashlsi3_table
104	.byte		ashlsi3_29-ashlsi3_table
105	.byte		ashlsi3_30-ashlsi3_table
106	.byte		ashlsi3_31-ashlsi3_table
107
108ashlsi3_6:
109	shll2	r0
110ashlsi3_4:
111	shll2	r0
112ashlsi3_2:
113	rts
114	shll2	r0
115
116ashlsi3_7:
117	shll2	r0
118ashlsi3_5:
119	shll2	r0
120ashlsi3_3:
121	shll2	r0
122ashlsi3_1:
123	rts
124	shll	r0
125
126ashlsi3_14:
127	shll2	r0
128ashlsi3_12:
129	shll2	r0
130ashlsi3_10:
131	shll2	r0
132ashlsi3_8:
133	rts
134	shll8	r0
135
136ashlsi3_15:
137	shll2	r0
138ashlsi3_13:
139	shll2	r0
140ashlsi3_11:
141	shll2	r0
142ashlsi3_9:
143	shll8	r0
144	rts
145	shll	r0
146
147ashlsi3_22:
148	shll2	r0
149ashlsi3_20:
150	shll2	r0
151ashlsi3_18:
152	shll2	r0
153ashlsi3_16:
154	rts
155	shll16	r0
156
157ashlsi3_23:
158	shll2	r0
159ashlsi3_21:
160	shll2	r0
161ashlsi3_19:
162	shll2	r0
163ashlsi3_17:
164	shll16	r0
165	rts
166	shll	r0
167
168ashlsi3_30:
169	shll2	r0
170ashlsi3_28:
171	shll2	r0
172ashlsi3_26:
173	shll2	r0
174ashlsi3_24:
175	shll16	r0
176	rts
177	shll8	r0
178
179ashlsi3_31:
180	shll2	r0
181ashlsi3_29:
182	shll2	r0
183ashlsi3_27:
184	shll2	r0
185ashlsi3_25:
186	shll16	r0
187	shll8	r0
188	rts
189	shll	r0
190
191ashlsi3_0:
192	rts
193	nop
194