Mercurial > hg > audiostuff

comparison intercom/gsm/gsm_expl.c @ 2:13be24d74cd2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
import intercom-0.4.1
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 09:57:52 +0200
parents
children
comparison
equal deleted inserted replaced
1:9cadc470e3da 2:13be24d74cd2
1 /*
2 * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische
3 * Universitaet Berlin. See the accompanying file "COPYRIGHT" for
4 * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
5 */
6
7 /* $Header: /home/kbs/jutta/src/gsm/gsm-1.0/src/RCS/gsm_explode.c,v 1.1 1992/10/28 00:15:50 jutta Exp $ */
8
9 #include "private.h"
10 #include "gsm.h"
11 #include "proto.h"
12
13 int gsm_explode P3((s, c, target), gsm s, gsm_byte * c,
14 gsm_signal * target)
15 {
16 /* GSM_MAGIC = (*c >> 4) & 0xF; */
17
18 if (((*c >> 4) & 0x0F) != GSM_MAGIC)
19 return -1;
20
21 #define LARc target
22
23 LARc[0] = (*c++ & 0xF) << 2; /* 1 */
24 LARc[0] |= (*c >> 6) & 0x3;
25 LARc[1] = *c++ & 0x3F;
26 LARc[2] = (*c >> 3) & 0x1F;
27 LARc[3] = (*c++ & 0x7) << 2;
28 LARc[3] |= (*c >> 6) & 0x3;
29 LARc[4] = (*c >> 2) & 0xF;
30 LARc[5] = (*c++ & 0x3) << 2;
31 LARc[5] |= (*c >> 6) & 0x3;
32 LARc[6] = (*c >> 3) & 0x7;
33 LARc[7] = *c++ & 0x7;
34
35 #define Nc (target + 8)
36
37 Nc[0] = (*c >> 1) & 0x7F;
38
39 #define bc (target + 9)
40
41 bc[0] = (*c++ & 0x1) << 1;
42 bc[0] |= (*c >> 7) & 0x1;
43
44 #define Mc (target + 10)
45
46 Mc[0] = (*c >> 5) & 0x3;
47
48 #define xmaxc (target + 11)
49
50 xmaxc[0] = (*c++ & 0x1F) << 1;
51 xmaxc[0] |= (*c >> 7) & 0x1;
52
53 #define xmc (target + 12)
54
55 xmc[0] = (*c >> 4) & 0x7;
56 xmc[1] = (*c >> 1) & 0x7;
57 xmc[2] = (*c++ & 0x1) << 2;
58 xmc[2] |= (*c >> 6) & 0x3;
59 xmc[3] = (*c >> 3) & 0x7;
60 xmc[4] = *c++ & 0x7;
61 xmc[5] = (*c >> 5) & 0x7;
62 xmc[6] = (*c >> 2) & 0x7;
63 xmc[7] = (*c++ & 0x3) << 1; /* 10 */
64 xmc[7] |= (*c >> 7) & 0x1;
65 xmc[8] = (*c >> 4) & 0x7;
66 xmc[9] = (*c >> 1) & 0x7;
67 xmc[10] = (*c++ & 0x1) << 2;
68 xmc[10] |= (*c >> 6) & 0x3;
69 xmc[11] = (*c >> 3) & 0x7;
70 xmc[12] = *c++ & 0x7;
71
72 #undef Nc
73 #define Nc (target + 25 - 1)
74
75 Nc[1] = (*c >> 1) & 0x7F;
76
77 #undef bc
78 #define bc (target + 26 - 1)
79
80 bc[1] = (*c++ & 0x1) << 1;
81 bc[1] |= (*c >> 7) & 0x1;
82
83 #undef Mc
84 #define Mc (target + 27 - 1)
85
86 Mc[1] = (*c >> 5) & 0x3;
87
88 #undef xmaxc
89 #define xmaxc (target + 28 - 1)
90
91 xmaxc[1] = (*c++ & 0x1F) << 1;
92 xmaxc[1] |= (*c >> 7) & 0x1;
93
94 #undef xmc
95 #define xmc (target + 29 - 13)
96
97 xmc[13] = (*c >> 4) & 0x7;
98 xmc[14] = (*c >> 1) & 0x7;
99 xmc[15] = (*c++ & 0x1) << 2;
100 xmc[15] |= (*c >> 6) & 0x3;
101 xmc[16] = (*c >> 3) & 0x7;
102 xmc[17] = *c++ & 0x7;
103 xmc[18] = (*c >> 5) & 0x7;
104 xmc[19] = (*c >> 2) & 0x7;
105 xmc[20] = (*c++ & 0x3) << 1;
106 xmc[20] |= (*c >> 7) & 0x1;
107 xmc[21] = (*c >> 4) & 0x7;
108 xmc[22] = (*c >> 1) & 0x7;
109 xmc[23] = (*c++ & 0x1) << 2;
110 xmc[23] |= (*c >> 6) & 0x3;
111 xmc[24] = (*c >> 3) & 0x7;
112 xmc[25] = *c++ & 0x7;
113
114 #undef Nc
115 #define Nc (target + 42 - 2)
116
117 Nc[2] = (*c >> 1) & 0x7F;
118
119 #undef bc
120 #define bc (target + 43 - 2)
121
122 bc[2] = (*c++ & 0x1) << 1; /* 20 */
123 bc[2] |= (*c >> 7) & 0x1;
124
125 #undef Mc
126 #define Mc (target + 44 - 2)
127
128 Mc[2] = (*c >> 5) & 0x3;
129
130 #undef xmaxc
131 #define xmaxc (target + 45 - 2)
132
133 xmaxc[2] = (*c++ & 0x1F) << 1;
134 xmaxc[2] |= (*c >> 7) & 0x1;
135
136 #undef xmc
137 #define xmc (target + 46 - 26)
138
139 xmc[26] = (*c >> 4) & 0x7;
140 xmc[27] = (*c >> 1) & 0x7;
141 xmc[28] = (*c++ & 0x1) << 2;
142 xmc[28] |= (*c >> 6) & 0x3;
143 xmc[29] = (*c >> 3) & 0x7;
144 xmc[30] = *c++ & 0x7;
145 xmc[31] = (*c >> 5) & 0x7;
146 xmc[32] = (*c >> 2) & 0x7;
147 xmc[33] = (*c++ & 0x3) << 1;
148 xmc[33] |= (*c >> 7) & 0x1;
149 xmc[34] = (*c >> 4) & 0x7;
150 xmc[35] = (*c >> 1) & 0x7;
151 xmc[36] = (*c++ & 0x1) << 2;
152 xmc[36] |= (*c >> 6) & 0x3;
153 xmc[37] = (*c >> 3) & 0x7;
154 xmc[38] = *c++ & 0x7;
155
156 #undef Nc
157 #define Nc (target + 59 - 3)
158
159 Nc[3] = (*c >> 1) & 0x7F;
160
161 #undef bc
162 #define bc (target + 60 - 3)
163
164 bc[3] = (*c++ & 0x1) << 1;
165 bc[3] |= (*c >> 7) & 0x1;
166
167 #undef Mc
168 #define Mc (target + 61 - 3)
169
170 Mc[3] = (*c >> 5) & 0x3;
171
172 #undef xmaxc
173 #define xmaxc (target + 62 - 3)
174
175 xmaxc[3] = (*c++ & 0x1F) << 1;
176 xmaxc[3] |= (*c >> 7) & 0x1;
177
178 #undef xmc
179 #define xmc (target + 63 - 39)
180
181 xmc[39] = (*c >> 4) & 0x7;
182 xmc[40] = (*c >> 1) & 0x7;
183 xmc[41] = (*c++ & 0x1) << 2;
184 xmc[41] |= (*c >> 6) & 0x3;
185 xmc[42] = (*c >> 3) & 0x7;
186 xmc[43] = *c++ & 0x7; /* 30 */
187 xmc[44] = (*c >> 5) & 0x7;
188 xmc[45] = (*c >> 2) & 0x7;
189 xmc[46] = (*c++ & 0x3) << 1;
190 xmc[46] |= (*c >> 7) & 0x1;
191 xmc[47] = (*c >> 4) & 0x7;
192 xmc[48] = (*c >> 1) & 0x7;
193 xmc[49] = (*c++ & 0x1) << 2;
194 xmc[49] |= (*c >> 6) & 0x3;
195 xmc[50] = (*c >> 3) & 0x7;
196 xmc[51] = *c & 0x7; /* 33 */
197
198 return 0;
199 }

Repositories maintained by Peter Meerwald, pmeerw@pmeerw.net.