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checksums updated

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zimoch
2015-10-15 10:19:35 +02:00
parent 85c68d2ae6
commit 871fbed2b0
1 changed files with 7 additions and 4 deletions
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doc/formats.html
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@ -488,13 +488,16 @@ In input, the next byte or bytes must match the checksum.
(poly=0x07, init=0x00, xorout=0x00).</dd>
<dt><code>%&lt;ccitt8&gt;</code></dt>
<dd>One byte. The CCITT standard 8 bit crc checksum
(poly=0x31, init=0x00, xorout=0x00).</dd>
(poly=0x31, init=0x00, xorout=0x00, reflected).</dd>
<dt><code>%&lt;crc16&gt;</code></dt>
<dd>Two bytes. An often used 16 bit crc checksum
(poly=0x8005, init=0x0000, xorout=0x0000).</dd>
<dt><code>%&lt;crc16r&gt;</code></dt>
<dd>Two bytes. An often used reflected 16 bit crc checksum
(poly=0x8005, init=0x0000, xorout=0x0000).</dd>
(poly=0x8005, init=0x0000, xorout=0x0000, reflected).</dd>
<dt><code>%&lt;modbus&gt;</code></dt>
<dd>Two bytes. The modbus 16 bit crc checksum
(poly=0x8005, init=0xffff, xorout=0x0000, reflected)</dd>
<dt><code>%&lt;ccitt16&gt;</code></dt>
<dd>Two bytes. The usual (but <a target="ex"
href="http://srecord.sourceforge.net/crc16-ccitt.html">wrong?</a>)
@ -513,10 +516,10 @@ In input, the next byte or bytes must match the checksum.
(poly=0x04C11DB7, init=0xFFFFFFFF, xorout=0xFFFFFFFF).</dd>
<dt><code>%&lt;crc32r&gt;</code></dt>
<dd>Four bytes. The standard reflected 32 bit crc checksum.
(poly=0x04C11DB7, init=0xFFFFFFFF, xorout=0xFFFFFFFF).</dd>
(poly=0x04C11DB7, init=0xFFFFFFFF, xorout=0xFFFFFFFF, reflected).</dd>
<dt><code>%&lt;jamcrc&gt;</code></dt>
<dd>Four bytes. Another reflected 32 bit crc checksum.
(poly=0x04C11DB7, init=0xFFFFFFFF, xorout=0x00000000).</dd>
(poly=0x04C11DB7, init=0xFFFFFFFF, xorout=0x00000000, reflected).</dd>
<dt><code>%&lt;adler32&gt;</code></dt>
<dd>Four bytes. The Adler32 checksum according to <a target="ex"
href="http://www.ietf.org/rfc/rfc1950.txt">RFC 1950</a>.</dd>