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annotate trau-ul-compile/trau-ul-decomp.c @ 33:e828468b0afd

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doc/TFO-xform/Theory: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 31 Aug 2024 20:45:25 +0000
parents f80e64139670
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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26
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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2 * This program reads a *.tul binary file and disassembles it back
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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3 * to ASCII form. It is intended for checking the correctness of
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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4 * trau-ul-compile, and also for sanity checks during actual TRAU
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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5 * testing with these tools.
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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6 */
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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7
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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8 #include <stdio.h>
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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9 #include <stdint.h>
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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10 #include <stdlib.h>
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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11 #include <string.h>
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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12 #include <strings.h>
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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13 #include <tw_gsmfr.h>
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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14 #include <gsm_efr.h>
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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15
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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16 main(argc, argv)
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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17 char **argv;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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18 {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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19 FILE *binf, *outf;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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20 unsigned frame_index;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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21 uint8_t frame[34];
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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22 int16_t params[GSMFR_NUM_PARAMS];
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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23 int rc, i, j, n;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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24
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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25 if (argc < 2 || argc > 3) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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26 fprintf(stderr, "usage: %s input.tul [output.tsrc]\n",
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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27 argv[0]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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28 exit(1);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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29 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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30 binf = fopen(argv[1], "r");
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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31 if (!binf) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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32 perror(argv[1]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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33 exit(1);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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34 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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35 if (argc > 2) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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36 outf = fopen(argv[2], "w");
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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37 if (!outf) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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38 perror(argv[2]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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39 exit(1);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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40 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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41 } else
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Mychaela Falconia <falcon@freecalypso.org>
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42 outf = stdout;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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43 for (frame_index = 0; ; frame_index++) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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44 rc = fread(frame, 1, 34, binf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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45 if (!rc)
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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46 break;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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47 if (rc != 34) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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48 inv_input: fprintf(stderr, "error: %s is not in expected format\n",
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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49 argv[1]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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50 exit(1);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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51 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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52 switch (frame[0] & 0xF0) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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53 case 0xC0:
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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54 fprintf(outf, "# input frame %u\nFrame_EFR {\n",
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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55 frame_index);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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56 if (frame_index % 24 == 23)
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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57 fputs("\t# TAF position\n", outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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58 fprintf(outf, "\tBFI %u\n", frame[33] >> 7);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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59 EFR_frame2params(frame, params);
f80e64139670 trau-ul-decomp program written
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60 n = 0;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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61 fputs("\tLPC", outf);
f80e64139670 trau-ul-decomp program written
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62 for (i = 0; i < 5; i++)
f80e64139670 trau-ul-decomp program written
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63 fprintf(outf, " %d", params[n++]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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64 putc('\n', outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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65 for (i = 0; i < 4; i++) {
f80e64139670 trau-ul-decomp program written
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66 fputs("\tsf", outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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67 for (j = 0; j < 13; j++)
f80e64139670 trau-ul-decomp program written
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68 fprintf(outf, " %d", params[n++]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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69 putc('\n', outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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70 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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71 fprintf(outf, "\tSID %u\n", frame[33] & 3);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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72 fputs("}\n\n", outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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73 break;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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74 case 0xD0:
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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75 fprintf(outf, "# input frame %u\nFrame_FR {\n",
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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76 frame_index);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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77 if (frame_index % 24 == 23)
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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78 fputs("\t# TAF position\n", outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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79 fprintf(outf, "\tBFI %u\n", frame[33] >> 7);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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80 gsmfr_unpack_to_array(frame, params);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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81 n = 0;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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82 fputs("\tLARc", outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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83 for (i = 0; i < 8; i++)
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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84 fprintf(outf, " %d", params[n++]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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85 putc('\n', outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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86 for (i = 0; i < 4; i++) {
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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87 fputs("\tsf", outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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88 for (j = 0; j < 17; j++)
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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89 fprintf(outf, " %d", params[n++]);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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90 putc('\n', outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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91 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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92 fprintf(outf, "\tSID %u\n", frame[33] & 3);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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93 fputs("}\n\n", outf);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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94 break;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
parents:
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95 default:
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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96 goto inv_input;
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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97 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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98 }
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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99 exit(0);
f80e64139670 trau-ul-decomp program written
Mychaela Falconia <falcon@freecalypso.org>
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100 }