1/* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0
2
3   Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4   2004, 2005, 2006
5   Free Software Foundation, Inc.
6*/
7
8!! libgcc routines for the Renesas / SuperH SH CPUs.
9!! Contributed by Steve Chamberlain.
10!! sac@cygnus.com
11
12!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
13!! recoded in assembly by Toshiyasu Morita
14!! tm@netcom.com
15
16/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
17   ELF local label prefixes by J"orn Rennecke
18   amylaar@cygnus.com  */
19
20!
21! __ashrsi3
22!
23! Entry:
24!
25! r4: Value to shift
26! r5: Shifts
27!
28! Exit:
29!
30! r0: Result
31!
32! Destroys:
33!
34! (none)
35!
36! __ashrsi3_r0
37!
38! Entry:
39!
40! r4: Value to shift
41! r0: Shifts
42!
43! Exit:
44!
45! r0: Result
46!
47! Destroys:
48!
49! (none)
50
51	.global	__ashrsi3
52	.global	__ashrsi3_r0
53
54	.align	2
55__ashrsi3:
56	mov	r5,r0
57	.align	2
58__ashrsi3_r0:
59	and	#31,r0
60	mov.l	r4,@-r15
61	mov	r0,r4
62	mova	ashrsi3_table,r0
63	mov.b	@(r0,r4),r4
64	add	r4,r0
65	jmp	@r0
66	mov.l	@r15+,r0
67
68	.align	2
69ashrsi3_table:
70	.byte		ashrsi3_0-ashrsi3_table
71	.byte		ashrsi3_1-ashrsi3_table
72	.byte		ashrsi3_2-ashrsi3_table
73	.byte		ashrsi3_3-ashrsi3_table
74	.byte		ashrsi3_4-ashrsi3_table
75	.byte		ashrsi3_5-ashrsi3_table
76	.byte		ashrsi3_6-ashrsi3_table
77	.byte		ashrsi3_7-ashrsi3_table
78	.byte		ashrsi3_8-ashrsi3_table
79	.byte		ashrsi3_9-ashrsi3_table
80	.byte		ashrsi3_10-ashrsi3_table
81	.byte		ashrsi3_11-ashrsi3_table
82	.byte		ashrsi3_12-ashrsi3_table
83	.byte		ashrsi3_13-ashrsi3_table
84	.byte		ashrsi3_14-ashrsi3_table
85	.byte		ashrsi3_15-ashrsi3_table
86	.byte		ashrsi3_16-ashrsi3_table
87	.byte		ashrsi3_17-ashrsi3_table
88	.byte		ashrsi3_18-ashrsi3_table
89	.byte		ashrsi3_19-ashrsi3_table
90	.byte		ashrsi3_20-ashrsi3_table
91	.byte		ashrsi3_21-ashrsi3_table
92	.byte		ashrsi3_22-ashrsi3_table
93	.byte		ashrsi3_23-ashrsi3_table
94	.byte		ashrsi3_24-ashrsi3_table
95	.byte		ashrsi3_25-ashrsi3_table
96	.byte		ashrsi3_26-ashrsi3_table
97	.byte		ashrsi3_27-ashrsi3_table
98	.byte		ashrsi3_28-ashrsi3_table
99	.byte		ashrsi3_29-ashrsi3_table
100	.byte		ashrsi3_30-ashrsi3_table
101	.byte		ashrsi3_31-ashrsi3_table
102
103ashrsi3_31:
104	rotcl	r0
105	rts
106	subc	r0,r0
107
108ashrsi3_30:
109	shar	r0
110ashrsi3_29:
111	shar	r0
112ashrsi3_28:
113	shar	r0
114ashrsi3_27:
115	shar	r0
116ashrsi3_26:
117	shar	r0
118ashrsi3_25:
119	shar	r0
120ashrsi3_24:
121	shlr16	r0
122	shlr8	r0
123	rts
124	exts.b	r0,r0
125
126ashrsi3_23:
127	shar	r0
128ashrsi3_22:
129	shar	r0
130ashrsi3_21:
131	shar	r0
132ashrsi3_20:
133	shar	r0
134ashrsi3_19:
135	shar	r0
136ashrsi3_18:
137	shar	r0
138ashrsi3_17:
139	shar	r0
140ashrsi3_16:
141	shlr16	r0
142	rts
143	exts.w	r0,r0
144
145ashrsi3_15:
146	shar	r0
147ashrsi3_14:
148	shar	r0
149ashrsi3_13:
150	shar	r0
151ashrsi3_12:
152	shar	r0
153ashrsi3_11:
154	shar	r0
155ashrsi3_10:
156	shar	r0
157ashrsi3_9:
158	shar	r0
159ashrsi3_8:
160	shar	r0
161ashrsi3_7:
162	shar	r0
163ashrsi3_6:
164	shar	r0
165ashrsi3_5:
166	shar	r0
167ashrsi3_4:
168	shar	r0
169ashrsi3_3:
170	shar	r0
171ashrsi3_2:
172	shar	r0
173ashrsi3_1:
174	rts
175	shar	r0
176
177ashrsi3_0:
178	rts
179	nop
180