help/info/hex2bit.html

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  13 <title>hex2bit</title>
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  32 <h1>hex2bit</h1>
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  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,&nbsp;&nbsp;&nbsp;'1'H -> '0001'B,&nbsp;&nbsp;&nbsp;'2'H -> '0010'B,&nbsp;&nbsp;&nbsp;'3'H -> '0011'B,&nbsp;&nbsp;&nbsp;'4'H -> '0100'B,&nbsp;&nbsp;&nbsp;'5'H -> '0101'B, <br>
  39 '6'H -> '0110'B,&nbsp;&nbsp;&nbsp;'7'H -> '0111'B,&nbsp;&nbsp;&nbsp;'8'H-> '1000'B,&nbsp;&nbsp;&nbsp;'9'H -> '1001'B,&nbsp;&nbsp;&nbsp;'A'H -> '1010'B,&nbsp;&nbsp;&nbsp;'B'H -> '1011'B, <br>
  40 'C'H -> '1100'B,&nbsp;&nbsp;&nbsp;'D'H -> '1101'B,&nbsp;&nbsp;&nbsp;'E'H -> '1110'B,&nbsp;and&nbsp;'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>.
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  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>
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  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>
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  61 <ul>
  62 </ul>
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  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.
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