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gerrit-public.fairphone.software / platform / frameworks / base / a9be4154e8dac0de3db5ee42e878beb0639e70e6 / . / media / libstagefright / codecs / amrwbenc / src / asm / ARMV5E / residu_asm_opt.s
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Mans Rullgard219e2622011-04-22 09:22:33 +0300[diff] [blame]1@/*
2@ ** Copyright 2003-2010, VisualOn, Inc.
3@ **
4@ ** Licensed under the Apache License, Version 2.0 (the "License");
5@ ** you may not use this file except in compliance with the License.
6@ ** You may obtain a copy of the License at
7@ **
8@ ** http://www.apache.org/licenses/LICENSE-2.0
9@ **
10@ ** Unless required by applicable law or agreed to in writing, software
11@ ** distributed under the License is distributed on an "AS IS" BASIS,
12@ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13@ ** See the License for the specific language governing permissions and
14@ ** limitations under the License.
15@ */
16@
17@void Residu(
18@ Word16 a[], /* (i) Q12 : prediction coefficients */
19@ Word16 x[], /* (i) : speech (values x[-m..-1] are needed */
20@ Word16 y[], /* (o) x2 : residual signal */
21@ Word16 lg /* (i) : size of filtering */
22@ )
23@a[] --- r0
24@x[] --- r1
25@y[] --- r2
26@lg --- r3
27
28 .section .text
29 .global Residu_opt
30
31Residu_opt:
32
33 STMFD r13!, {r4 - r12, r14}
34
35 LDRH r5, [r0], #2
36 LDRH r6, [r0], #2
37 ORR r5, r6, r5, LSL #16 @r5 --- a0, a1
38
39 LDRH r6, [r0], #2
40 LDRH r7, [r0], #2
41 ORR r6, r7, r6, LSL #16 @r6 --- a2, a3
42
43 LDRH r7, [r0], #2
44 LDRH r8, [r0], #2
45 ORR r7, r8, r7, LSL #16 @r7 --- a4, a5
46
47 LDRH r8, [r0], #2
48 LDRH r9, [r0], #2
49 ORR r8, r9, r8, LSL #16 @r8 --- a6, a7
50
51 LDRH r9, [r0], #2
52 LDRH r10, [r0], #2
53 ORR r9, r10, r9, LSL #16 @r9 --- a8, a9
54
55 LDRH r10, [r0], #2
56 LDRH r11, [r0], #2
57 ORR r10, r11, r10, LSL #16 @r10 --- a10, a11
58
59 LDRH r11, [r0], #2
60 LDRH r12, [r0], #2
61 ORR r11, r12, r11, LSL #16 @r11 --- a12, a13
62
63 LDRH r12, [r0], #2
64 LDRH r4, [r0], #2
65 ORR r12, r4, r12, LSL #16 @r12 --- a14, a15
66
67
68 STMFD r13!, {r8 - r12} @store r8-r12
69 LDRH r4, [r0], #2 @load a16
70 MOV r14, r3, ASR #2 @one loop get 4 outputs
71 ADD r1, r1, #4
72 MOV r0, r2
73 ORR r14, r4, r14, LSL #16 @r14 --- loopnum, a16
74
75residu_loop:
76
77 LDR r10, [r1], #-4 @r10 --- x[3], x[2]
78 LDR r2, [r1], #-4 @r2 --- x[1], x[0]
79
80 SMULTB r3, r5, r2 @i1(0) --- r3 = x[0] * a0
81 SMULTT r4, r5, r2 @i2(0) --- r4 = x[1] * a0
82 SMULTB r11, r5, r10 @i3(0) --- r11 = x[2] * a0
83 SMULTT r12, r5, r10 @i4(0) --- r12 = x[3] * a0
84
85 SMLABB r4, r5, r2, r4 @i2(1) --- r4 += x[0] * a1
86 SMLABT r11, r5, r2, r11 @i3(1) --- r11 += x[1] * a0
87 SMLABB r12, r5, r10, r12 @i4(1) --- r12 += x[2] * a1
88
89 SMLATB r11, r6, r2, r11 @i3(2) --- r11 += x[0] * a2
90 SMLATT r12, r6, r2, r12 @i4(2) --- r12 += x[1] * a2
91 SMLABB r12, r6, r2, r12 @i4(3) --- r12 += x[0] * a3
92
93 LDR r2, [r1], #-4 @r2 ---- x[-1], x[-2]
94
95 SMLABT r3, r5, r2, r3 @i1(1) --- r3 += x[-1] * a1
96 SMLATT r4, r6, r2, r4 @i2(2) --- r4 += x[-1] * a2
97 SMLABT r11, r6, r2, r11 @i3(3) --- r11 += x[-1] * a3
98 SMLATT r12, r7, r2, r12 @i4(4) --- r12 += x[-1] * a4
99 SMLATB r3, r6, r2, r3 @i1(2) --- r3 += x[-2] * a2
100
101 SMLABB r4, r6, r2, r4 @ i2 (3)
102 SMLATB r11,r7, r2, r11 @ i3 (4)
103 SMLABB r12,r7, r2, r12 @ i4 (5)
104
105 LDR r2,[r1],#-4
106 SMLABT r3, r6, r2, r3 @ i1 (3)
107 SMLATT r4, r7, r2, r4 @ i2 (4)
108 SMLABT r11,r7, r2, r11 @ i3 (5)
109 SMLATT r12,r8, r2, r12 @ i4 (6)
110 SMLATB r3, r7, r2, r3 @ i1 (4)
111 SMLABB r4, r7, r2, r4 @ i2 (5)
112 SMLATB r11,r8, r2, r11 @ i3 (6)
113 SMLABB r12,r8, r2, r12 @ i4 (7)
114
115 LDR r2,[r1],#-4
116 SMLABT r3, r7, r2, r3 @ i1 (5)
117 SMLATT r4, r8, r2, r4 @ i2 (6)
118 SMLABT r11,r8, r2, r11 @ i3 (7)
119 SMLATT r12,r9, r2, r12 @ i4 (8)
120 SMLATB r3, r8, r2, r3 @ i1 (6)
121 SMLABB r4, r8, r2, r4 @ i2 (7)
122 SMLATB r11,r9, r2, r11 @ i3 (8)
123 SMLABB r12,r9, r2, r12 @ i4 (9)
124 LDR r10, [r13, #8] @ [ a10 | a11]
125
126 LDR r2,[r1],#-4
127 SMLABT r3, r8, r2, r3 @ i1 (7)
128 SMLATT r4, r9, r2, r4 @ i2 (8)
129 SMLABT r11,r9, r2, r11 @ i3 (9)
130 SMLATT r12,r10, r2, r12 @ i4 (10)
131 SMLATB r3, r9, r2, r3 @ i1 (8)
132 SMLABB r4, r9, r2, r4 @ i2 (9)
133 SMLATB r11,r10, r2, r11 @ i3 (10)
134 SMLABB r12,r10, r2, r12 @ i4 (11)
135 LDR r8, [r13, #12] @ [ a12 | a13 ]
136
137 LDR r2,[r1],#-4
138 SMLABT r3, r9, r2, r3 @ i1 (9)
139 SMLATT r4, r10, r2, r4 @ i2 (10)
140 SMLABT r11,r10, r2, r11 @ i3 (11)
141 SMLATT r12,r8, r2, r12 @ i4 (12)
142 SMLATB r3, r10, r2, r3 @ i1 (10)
143 SMLABB r4, r10, r2, r4 @ i2 (11)
144 SMLATB r11,r8, r2, r11 @ i3 (12)
145 SMLABB r12,r8, r2, r12 @ i4 (13)
146 LDR r9, [r13, #16] @ [ a14 | a15 ]
147
148 LDR r2,[r1],#-4
149 SMLABT r3, r10, r2, r3 @ i1 (11)
150 SMLATT r4, r8, r2, r4 @ i2 (12)
151 SMLABT r11,r8, r2, r11 @ i3 (13)
152 SMLATT r12,r9, r2, r12 @ i4 (14)
153 SMLATB r3, r8, r2, r3 @ i1 (12)
154 SMLABB r4, r8, r2, r4 @ i2 (13)
155 SMLATB r11,r9, r2, r11 @ i3 (14)
156 SMLABB r12,r9, r2, r12 @ i4 (15)
157
158
159 LDR r2,[r1],#-4
160 SMLABT r3, r8, r2, r3 @ i1 (13)
161 SMLATT r4, r9, r2, r4 @ i2 (14)
162 SMLABT r11,r9, r2, r11 @ i3 (15)
163 SMLABT r12,r14, r2, r12 @ i4 (16)
164 SMLATB r3, r9, r2, r3 @ i1 (14)
165 SMLABB r4, r9, r2, r4 @ i2 (15)
166 SMLABB r11,r14, r2, r11 @ i3 (16)
167 LDR r8, [r13] @ [ a6 | a7 ]
168
169 LDR r2,[r1],#44 @ Change
170 SMLABT r3, r9, r2, r3
171 SMLABB r3, r14, r2, r3
172 SMLABT r4, r14, r2, r4
173 LDR r9, [r13, #4] @ [ a8 | a9 ]
174
175
176 QADD r3,r3,r3
177 QADD r4,r4,r4
178 QADD r11,r11,r11
179 QADD r12,r12,r12
180
181 QADD r3,r3,r3
182 QADD r4,r4,r4
183 QADD r11,r11,r11
184 QADD r12,r12,r12
185
186 QADD r3,r3,r3
187 QADD r4,r4,r4
188 QADD r11,r11,r11
189 QADD r12,r12,r12
190
191 QADD r3,r3,r3
192 QADD r4,r4,r4
193 QADD r11,r11,r11
194 QADD r12,r12,r12
195
196 MOV r2,#32768
197
198 QDADD r3,r2,r3
199 QDADD r4,r2,r4
200 QDADD r11,r2,r11
201 QDADD r12,r2,r12
202
203
204 MOV r3,r3,asr #16
205 MOV r4,r4,asr #16
206 MOV r11,r11,asr #16
207 MOV r12,r12,asr #16
208
209 STRH r3,[r0],#2
210 STRH r4,[r0],#2
211 STRH r11,[r0],#2
212 STRH r12,[r0],#2
213
214 MOV r2,r14,asr #16
215 SUB r14, r14, #0x10000
216 SUBS r2,r2,#1
217 BNE residu_loop
218end:
219 LDMFD r13!, {r8 -r12}
220 LDMFD r13!, {r4 -r12,pc}
221
222 @ENDFUNC
223 .END
224
225
226
227
228