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annotate hrutil/cod-out-endian.c @ 609:a2b2ca082dd7 default tip

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hrutil: new program gsmhr-tfo-xfrm-dc
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 24 Feb 2026 04:16:57 +0000
parents hrutil/tw5b-out-cod.c@129c895a0564
children
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129c895a0564 hrutil: new program gsmhr-cod2hex
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1 /*
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2 * The helper function implemented in this module emits an encoder output
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3 * array of params (*.cod format) in either BE or LE format. This helper
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4 * function will be used for gsmhr-etsi-enc and gsmhr-tfo-xfrm-dc utilities,
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5 * which need to both read and write ETSI-format files that are subject to
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6 * endian concerns.
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7 */
129c895a0564 hrutil: new program gsmhr-cod2hex
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8
129c895a0564 hrutil: new program gsmhr-cod2hex
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9 #include <stdint.h>
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10 #include <stdio.h>
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11 #include "../libgsmhr1/tw_gsmhr.h"
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129c895a0564 hrutil: new program gsmhr-cod2hex
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13 void
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14 emit_cod_to_endian(outf, params, big_endian)
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15 FILE *outf;
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16 int16_t *params;
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17 {
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18 uint8_t file_bytes[GSMHR_NUM_PARAMS_ENC * 2], *dp;
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19 unsigned n;
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20 uint16_t val;
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21
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22 dp = file_bytes;
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23 for (n = 0; n < GSMHR_NUM_PARAMS_ENC; n++) {
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24 val = params[n];
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25 if (big_endian) {
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26 *dp++ = val >> 8;
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27 *dp++ = val;
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28 } else {
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29 *dp++ = val;
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30 *dp++ = val >> 8;
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31 }
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32 }
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33 fwrite(file_bytes, 2, GSMHR_NUM_PARAMS_ENC, outf);
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34 }