projects / deliverable / titan.core.git / blame
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| 3abe9331 | 2 | Copyright (c) 2000-2015 Ericsson Telecom AB |
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| 4 | All rights reserved. This program and the accompanying materials | |
| 5 | are made available under the terms of the Eclipse Public License v1.0 | |
| 6 | which accompanies this distribution, and is available at | |
| 7 | http://www.eclipse.org/legal/epl-v10.html | |
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| 9 | <html> | |
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| 11 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| 12 | <meta http-equiv="Content-Language" content="en-us"> | |
| 13 | <title>hex2bit</title> | |
| 14 | </head> | |
| 15 | <body bgcolor="#DAD3C5" vlink="#0094D2" link="#003258"> | |
| 16 | <table align="left" border="0" cellspacing="0" cellpadding="0" valign=top> | |
| 17 | <tr> | |
| 18 | <td width=105 height=40><a href="https://projects.eclipse.org/projects/tools.titan"><img src="../images/titan_transparent.gif" border=0 width=105 height=40 align="left" alt="Titan"></a></td> | |
| 19 | </tr> | |
| 20 | </table> | |
| 21 | <table border="0" align="right" cellpadding="0" cellspacing="0"> | |
| 22 | <tr> | |
| 23 | <td><a href="../titan_main.html" alt="contents"><img border="0" src="../images/ao.jpg" width="53" height="40"></a></td> | |
| 24 | <td><a href="../titan_index.html" alt="index"><img border="0" src="../images/up.jpg" width="53" height="40"></a></td> | |
| 25 | <td><a alt="previous" href="group.html"><img border="0" src="../images/left.jpg" width="53" height="40"></a></td> | |
| 26 | <td><a alt="next" href="hex2int.html"><img border="0" src="../images/right.jpg" width="53" height="40"></a></td> | |
| 27 | </tr> | |
| 28 | </table> | |
| 29 | <p><br clear="all"> | |
| 30 | </p> | |
| 31 | <hr> | |
| 32 | <h1>hex2bit</h1> | |
| 33 | <hr align="left" width="75%"> | |
| 34 | <p>This function converts a single <b><font face="Courier New">hexstring</font></b> value to a single <b><font face="Courier New">bitstring</font></b>. The resulting <b><font | |
| 35 | face="Courier New">bitstring</font></b> represents the same value as the <b><font face="Courier New">hexstring</font></b>. | |
| 36 | <p>For the purpose of this conversion, a <b><font face="Courier New">hexstring</font></b> should be converted into a <b><font face="Courier New">bitstring</font></b>, where the hex digits of the <b><font | |
| 37 | face="Courier New">hexstring</font></b> are converted in groups of bits as follows: | |
| 38 | <p>'0'H -> '0000'B, '1'H -> '0001'B, '2'H -> '0010'B, '3'H -> '0011'B, '4'H -> '0100'B, '5'H -> '0101'B, <br> | |
| 39 | '6'H -> '0110'B, '7'H -> '0111'B, '8'H-> '1000'B, '9'H -> '1001'B, 'A'H -> '1010'B, 'B'H -> '1011'B, <br> | |
| 40 | 'C'H -> '1100'B, 'D'H -> '1101'B, 'E'H -> '1110'B, and 'F'H -> '1111'B. | |
| 41 | <p>The consecutive order of the groups of 4 bits in the resulting <b><font face="Courier New">bitstring</font></b> is the same as the order of hex digits in the <b><font face="Courier New">hexstring</font></b>. | |
| 42 | <hr align="left" width="50%"> | |
| 43 | <p>Related keyword:</p> | |
| 44 | <ul> | |
| 45 | <li><b><font face="Courier New" size="4" color="#003258"> <a href="hexstring.html">hexstring</a></font></b></li> | |
| 46 | <li><b><a href="bitstring.html"><font face="Courier New" size="4" color="#003258"> bitstring</font></a></b></li> | |
| 47 | </ul> | |
| 48 | <hr align="left" width="50%"> | |
| 49 | <div align="center"> | |
| 50 | <center> | |
| 51 | <table border="0" width="90%" bgcolor="#FFB599" cellpadding="4"> | |
| 52 | <tr> | |
| 53 | <td width="100%"> | |
| 54 | <h3 align="center"><font face="Courier New" color="#003258" size="5"><b>hex2bit</b></font><font face="Courier New" color="#003258" size="5"><b>(</b></font><b>hexstring</b><i> value</i><font | |
| 55 | face="Courier New" color="#003258" size="5"><b>) return bitstring</b></font></h3> | |
| 56 | </td> | |
| 57 | </tr> | |
| 58 | </table> | |
| 59 | </center> | |
| 60 | </div> | |
| 61 | <ul> | |
| 62 | </ul> | |
| 63 | <hr align="left" width="25%"> | |
| 64 | <p>Example 1:</p> | |
| 65 | <p><font face="Courier New"> const bitstring c_perrongen := hex2bit('A7'H); </font></p> | |
| 66 | <p>The constant called c_perrongen will contain the bit string 10100111. | |
| 67 | <hr align="left" width="25%"> | |
| 68 | </body> | |
| 69 | </html> |