1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
/***********************************************************************
Copyright (c) 2006-2012, Skype Limited. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, (subject to the limitations in the disclaimer below)
are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of Skype Limited, nor the names of specific
contributors, may be used to endorse or promote products derived from
this software without specific prior written permission.
NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
***********************************************************************/
/* SKP_Silk_AsmPreProc.h
*
* General header for all ARM asms uses SigProcLib.
* It contains C preprocessor part and asm preprocessor part.
* C preprocessor part:
* * Interfacing makefile, arch, fpu and neon support
* * Interfacing different symbol styles and asm directives.
* * Interfacing compiling time standard output
* ASM preprocessor part:
* * Defining general asm header/footer for stack/return value
* * Allocating stack for local variables and nasted function
* * Defining simple syntax checking and debugging routines
*/
/*
* C preprocessor part
*/
#ifndef _SKP_ASM_PREPROC_H_
#define _SKP_ASM_PREPROC_H_
#include "SKP_Silk_AsmHelper.h"
/* Checking compilier __ARMEL__ defines */
#if !__ARMEL__ && (!defined(NO_ASM)) && (!defined(_WINRT))
#error Currently SKP_Silk_AsmPreProc only supports little endian.
// above line can be replaced by
// #warning __ARMEL__=0
// #define NOASM
#endif
/* Defining macro for different user label prefix. */
#ifndef __USER_LABEL_PREFIX__
#define __USER_LABEL_PREFIX__
#endif
#define CONCAT1(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
/* Remapping register for iphone. */
#ifdef IPHONE
# define _fp r7
# define _r7 r11
#else
# define _fp fp
# define _r7 r7
#endif
/* Checking compiler __ARM_EABI__ defines */
#if __ARMEB__
#define NO_ASM //remove asm optimization for ARM big endian.
#else
#define ARM_LITTLE_ENDIAN
#endif
/* Interfacing some asm directives to macros*/
#define GBL .globl
/* Legacy definition wrapper */
#ifndef NO_ASM
#if defined (__ARM_ARCH_4__) || defined (__ARM_ARCH_4T__) || defined (__ARM_ARCH_5__) || defined (__ARM_ARCH_5T__)
#define EMBEDDED_ARM 4
#define EMBEDDED_ARMv4
#elif defined (__ARM_ARCH_5TE__) || defined (__ARM_ARCH_5TEJ__)
#define EMBEDDED_ARM 5
#define EMBEDDED_ARMv5
#elif defined (__ARM_ARCH_6__) ||defined (__ARM_ARCH_6J__) || defined (__ARM_ARCH_6Z__) || defined (__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__)
#define EMBEDDED_ARM 6
#define EMBEDDED_ARMv6
#elif defined (__ARM_ARCH_7A__) && defined (__ARM_NEON__)
#define EMBEDDED_ARM 7
#define EMBEDDED_ARMv6
#elif defined (__ARM_ARCH_7A__)
#define EMBEDDED_ARM 6
#define EMBEDDED_ARMv6
#endif
#endif
#ifdef _WINRT
#define L(a) a
#define LR(a,d) %##d##a
#define TABLE(L, symbol) symbol
#else
#define L(a) a:
#define LR(a,d) a##d
#define DCD .long
#define DCW .short
#define TABLE(L, symbol) L
#endif
#ifdef _WINRT
#define streqh strheq
#define strneh strhne
#define strgth strhgt
#define strlth strhlt
#define ldrgtsh ldrshgt
#define ldmgtia ldmiagt
#define ldmgtdb ldmdbgt
#define ldrneh ldrhne
#define ldmltia ldmialt
#endif
/*
* ASM preprocessor part:
*/
#ifdef _WINRT
#else
// AT&T Format
#if EMBEDDED_ARM >= 7
.set _ARCH, 7
#elif EMBEDDED_ARM >= 6
.set _ARCH, 6
#elif EMBEDDED_ARM >= 5 // Should be re-considerred as ARMv5 != ARMv5E
.set _ARCH, 5
#elif EMBEDDED_ARM >= 4
.set _ARCH, 4
#else
.set _ARCH, 0
#endif
#if NEON
.set _NEON, 1
#else
.set _NEON, 0
#endif
MACRO SKP_TABLE ARG0_in, ARG1_in
SYM(ARG0):
END_MACRO
MACRO SKP_SMLAD ARG0_in, ARG1_in, ARG2_in, ARG3_in
#if EMBEDDED_ARM>=6
smlad ARG0, ARG1, ARG2, ARG3
#elif EMBEDDED_ARM>=5
smlabb ARG0, ARG1, ARG2, ARG3
smlatt ARG0, ARG1, ARG2, ARG0
#else
.abort "SKP_SMUAD can't be used for armv4 or lower device.."
#endif
END_MACRO
MACRO SKP_SMUAD ARG0_in, ARG1_in, ARG2_in
#if EMBEDDED_ARM>=6
smuad ARG0, ARG1, ARG2
#elif EMBEDDED_ARM>=5
smulbb ARG0, ARG1, ARG2
smlatt ARG0, ARG1, ARG2, ARG0
#else
.abort "SKP_SMUAD can't be used for armv4 or lower device.."
#endif
END_MACRO
MACRO SKP_SMLALD ARG0_in, ARG1_in, ARG2_in, ARG3_in
#if EMBEDDED_ARM>=6
smlald ARG0, ARG1, ARG2, ARG3
#elif EMBEDDED_ARM>=5
smlalbb ARG0, ARG1, ARG2, ARG3
smlaltt ARG0, ARG1, ARG2, ARG3
#else
.abort "SKP_SMLALD can't be used for armv4 or lower device.."
#endif
END_MACRO
MACRO SKP_RSHIFT_ROUND ARG0_in, ARG1_in, ARG2_in
#if EMBEDDED_ARM>=4
mov ARG0, ARG1, asr #(ARG2-1)
add ARG0, ARG0, #1
mov ARG0, ARG0, asr #1
#else
.abort "SKP_RSHIFT_ROUND can't be used for armv3 or lower device.."
#endif
END_MACRO
MACRO ADD_SHIFT ARG0_in, ARG1_in, ARG2_in, ARG3_in, ARG4_in
add ARG0, ARG1, ARG2, ARG3 ARG4
END_MACRO
MACRO POST_IR ARG0_in, ARG1_in, ARG2_in, ARG3_in
ARG0 ARG1, [ARG2], ARG3
END_MACRO
#endif
#endif //_SKP_ASM_PREPROC_H_