Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/sh/lib/ashrsi3.S
10817 views
1
/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,

2
   2004, 2005, 2006

3
   Free Software Foundation, Inc.

4


5
This file is free software; you can redistribute it and/or modify it

6
under the terms of the GNU General Public License as published by the

7
Free Software Foundation; either version 2, or (at your option) any

8
later version.

9


10
In addition to the permissions in the GNU General Public License, the

11
Free Software Foundation gives you unlimited permission to link the

12
compiled version of this file into combinations with other programs,

13
and to distribute those combinations without any restriction coming

14
from the use of this file.  (The General Public License restrictions

15
do apply in other respects; for example, they cover modification of

16
the file, and distribution when not linked into a combine

17
executable.)

18


19
This file is distributed in the hope that it will be useful, but

20
WITHOUT ANY WARRANTY; without even the implied warranty of

21
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

22
General Public License for more details.

23


24
You should have received a copy of the GNU General Public License

25
along with this program; see the file COPYING.  If not, write to

26
the Free Software Foundation, 51 Franklin Street, Fifth Floor,

27
Boston, 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
   [email protected]  */

40


41
!

42
! __ashrsi3

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


58
	.global	__ashrsi3

59
	

60
	.align	2

61
__ashrsi3:

62
	mov	#31,r0

63
	and	r0,r5

64
	mova	ashrsi3_table,r0

65
	mov.b	@(r0,r5),r5

66
#ifdef __sh1__

67
	add	r5,r0

68
	jmp	@r0

69
#else

70
	braf	r5

71
#endif

72
	mov	r4,r0

73


74
	.align	2

75
ashrsi3_table:

76
	.byte		ashrsi3_0-ashrsi3_table

77
	.byte		ashrsi3_1-ashrsi3_table

78
	.byte		ashrsi3_2-ashrsi3_table

79
	.byte		ashrsi3_3-ashrsi3_table

80
	.byte		ashrsi3_4-ashrsi3_table

81
	.byte		ashrsi3_5-ashrsi3_table

82
	.byte		ashrsi3_6-ashrsi3_table

83
	.byte		ashrsi3_7-ashrsi3_table

84
	.byte		ashrsi3_8-ashrsi3_table

85
	.byte		ashrsi3_9-ashrsi3_table

86
	.byte		ashrsi3_10-ashrsi3_table

87
	.byte		ashrsi3_11-ashrsi3_table

88
	.byte		ashrsi3_12-ashrsi3_table

89
	.byte		ashrsi3_13-ashrsi3_table

90
	.byte		ashrsi3_14-ashrsi3_table

91
	.byte		ashrsi3_15-ashrsi3_table

92
	.byte		ashrsi3_16-ashrsi3_table

93
	.byte		ashrsi3_17-ashrsi3_table

94
	.byte		ashrsi3_18-ashrsi3_table

95
	.byte		ashrsi3_19-ashrsi3_table

96
	.byte		ashrsi3_20-ashrsi3_table

97
	.byte		ashrsi3_21-ashrsi3_table

98
	.byte		ashrsi3_22-ashrsi3_table

99
	.byte		ashrsi3_23-ashrsi3_table

100
	.byte		ashrsi3_24-ashrsi3_table

101
	.byte		ashrsi3_25-ashrsi3_table

102
	.byte		ashrsi3_26-ashrsi3_table

103
	.byte		ashrsi3_27-ashrsi3_table

104
	.byte		ashrsi3_28-ashrsi3_table

105
	.byte		ashrsi3_29-ashrsi3_table

106
	.byte		ashrsi3_30-ashrsi3_table

107
	.byte		ashrsi3_31-ashrsi3_table

108


109
ashrsi3_31:

110
	rotcl	r0

111
	rts

112
	subc	r0,r0

113


114
ashrsi3_30:

115
	shar	r0

116
ashrsi3_29:

117
	shar	r0

118
ashrsi3_28:

119
	shar	r0

120
ashrsi3_27:

121
	shar	r0

122
ashrsi3_26:

123
	shar	r0

124
ashrsi3_25:

125
	shar	r0

126
ashrsi3_24:

127
	shlr16	r0

128
	shlr8	r0

129
	rts

130
	exts.b	r0,r0

131


132
ashrsi3_23:

133
	shar	r0

134
ashrsi3_22:

135
	shar	r0

136
ashrsi3_21:

137
	shar	r0

138
ashrsi3_20:

139
	shar	r0

140
ashrsi3_19:

141
	shar	r0

142
ashrsi3_18:

143
	shar	r0

144
ashrsi3_17:

145
	shar	r0

146
ashrsi3_16:

147
	shlr16	r0

148
	rts

149
	exts.w	r0,r0

150


151
ashrsi3_15:

152
	shar	r0

153
ashrsi3_14:

154
	shar	r0

155
ashrsi3_13:

156
	shar	r0

157
ashrsi3_12:

158
	shar	r0

159
ashrsi3_11:

160
	shar	r0

161
ashrsi3_10:

162
	shar	r0

163
ashrsi3_9:

164
	shar	r0

165
ashrsi3_8:

166
	shar	r0

167
ashrsi3_7:

168
	shar	r0

169
ashrsi3_6:

170
	shar	r0

171
ashrsi3_5:

172
	shar	r0

173
ashrsi3_4:

174
	shar	r0

175
ashrsi3_3:

176
	shar	r0

177
ashrsi3_2:

178
	shar	r0

179
ashrsi3_1:

180
	rts

181
	shar	r0

182


183
ashrsi3_0:

184
	rts

185
	nop

186


187