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>mcmp</TITLE
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>eCos Reference Manual</TH
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><H1
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><A
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NAME="MCMP-COMMAND">mcmp</H1
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CLASS="REFNAMEDIV"
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NAME="AEN3581"
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><H2
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>Name</H2
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>mcmp&nbsp;--&nbsp;Compare two segments of memory</DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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><A
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NAME="AEN3584"><H2
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>Synopsis</H2
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><P
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><B
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CLASS="COMMAND"
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>mcmp</B
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>  {-s <TT
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><I
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>location1</I
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></TT
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>} {-d <TT
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><I
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>location1</I
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></TT
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>} {-l <TT
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><I
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>length</I
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>} [-1 | -2 | -4]</P
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></DIV
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><DIV
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><A
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NAME="AEN3597"
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><H2
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>Arguments</H2
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><DIV
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NAME="AEN3599"><P
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></P
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><THEAD
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><TH
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>Name</TH
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>Type</TH
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><TH
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>Description</TH
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><TH
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>Default</TH
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></THEAD
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><TD
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>-s <TT
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><I
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>location1</I
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></TT
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><TD
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>Memory address</TD
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>Location for start of data.</TD
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>none</I
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><TD
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>-d <TT
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><I
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>location2</I
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><TD
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>Memory address</TD
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><TD
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>Location for start of data.</TD
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><TD
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><SPAN
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>none</I
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></TD
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><TR
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><TD
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>-l <TT
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><I
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>length</I
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><TD
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>Number</TD
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><TD
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>Length of data</TD
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><SPAN
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>none</I
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></TD
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><TD
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>-1</TD
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><TD
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>&nbsp;</TD
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><TD
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>Access one byte (8 bits) at a time.
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Only the least significant 8 bits of the pattern will be used.</TD
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><TD
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>-4</TD
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><TD
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>-2</TD
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>&nbsp;</TD
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><TD
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>Access two bytes (16 bits) at a time.
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Only the least significant 16 bits of the pattern will be used.</TD
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><TD
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>-4</TD
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><TD
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>-4</TD
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>&nbsp;</TD
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><TD
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>Access one word (32 bits) at a time.</TD
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><TD
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>-4</TD
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></TR
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></TBODY
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></TABLE
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><P
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></P
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></DIV
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN3648"
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></A
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><H2
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>Description</H2
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><P
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>Compares the contents of two ranges of memory (RAM, ROM, FLASH, etc).</P
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN3651"
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></A
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><H2
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>Examples</H2
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><P
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>Compare two buffers which match (result is <SPAN
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>quiet</I
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>).
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><TR
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><TD
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><PRE
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>
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RedBoot&#62; <TT
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><B
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>mfill -b 0x100000 -l 0x20 -p 0xDEADFACE</B
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></TT
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>
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RedBoot&#62; <TT
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CLASS="USERINPUT"
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><B
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>mfill -b 0x200000 -l 0x20 -p 0xDEADFACE</B
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>
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RedBoot&#62; <TT
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CLASS="USERINPUT"
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><B
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>mcmp -s 0x100000 -d 0x200000 -l 0x20</B
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></TT
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> </P
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><P
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>Compare two buffers which don't match.
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Only the first non-matching element is displayed.
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>
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RedBoot&#62; <TT
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><B
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>mcmp -s 0x100000 -d 0x200000 -l 0x30 -2</B
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></TT
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>
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Buffers don't match - 0x00100020=0x6000, 0x00200020=0x0000</PRE
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>
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      </P
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HREF="download-command.html"
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>Prev</A
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HREF="ecos-ref.html"
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>Home</A
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>load</TD
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>Up</A
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>mfill</TD
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