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><H1
><A
NAME="MCMP-COMMAND">mcmp</H1
><DIV
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><A
NAME="AEN3581"
></A
><H2
>Name</H2
>mcmp -- Compare two segments of memory</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN3584"><H2
>Synopsis</H2
><P
><B
CLASS="COMMAND"
>mcmp</B
> {-s <TT
CLASS="REPLACEABLE"
><I
>location1</I
></TT
>} {-d <TT
CLASS="REPLACEABLE"
><I
>location1</I
></TT
>} {-l <TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
>} [-1 | -2 | -4]</P
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></A
><H2
>Arguments</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN3599"><P
></P
><TABLE
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><THEAD
><TR
><TH
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>Name</TH
><TH
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ALIGN="LEFT"
VALIGN="TOP"
>Type</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Description</TH
><TH
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ALIGN="LEFT"
VALIGN="TOP"
>Default</TH
></TR
></THEAD
><TBODY
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><TD
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>-s <TT
CLASS="REPLACEABLE"
><I
>location1</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Memory address</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Location for start of data.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>none</I
></SPAN
></TD
></TR
><TR
><TD
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>-d <TT
CLASS="REPLACEABLE"
><I
>location2</I
></TT
></TD
><TD
WIDTH="25%"
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VALIGN="TOP"
>Memory address</TD
><TD
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VALIGN="TOP"
>Location for start of data.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>none</I
></SPAN
></TD
></TR
><TR
><TD
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VALIGN="TOP"
>-l <TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Number</TD
><TD
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ALIGN="LEFT"
VALIGN="TOP"
>Length of data</TD
><TD
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><SPAN
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><I
CLASS="EMPHASIS"
>none</I
></SPAN
></TD
></TR
><TR
><TD
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ALIGN="LEFT"
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>-1</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
> </TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Access one byte (8 bits) at a time.
Only the least significant 8 bits of the pattern will be used.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>-4</TD
></TR
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>-2</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
> </TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Access two bytes (16 bits) at a time.
Only the least significant 16 bits of the pattern will be used.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>-4</TD
></TR
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
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>-4</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
> </TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Access one word (32 bits) at a time.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>-4</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3648"
></A
><H2
>Description</H2
><P
>Compares the contents of two ranges of memory (RAM, ROM, FLASH, etc).</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN3651"
></A
><H2
>Examples</H2
><P
>Compare two buffers which match (result is <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>quiet</I
></SPAN
>).
<TABLE
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>
RedBoot> <TT
CLASS="USERINPUT"
><B
>mfill -b 0x100000 -l 0x20 -p 0xDEADFACE</B
></TT
>
RedBoot> <TT
CLASS="USERINPUT"
><B
>mfill -b 0x200000 -l 0x20 -p 0xDEADFACE</B
></TT
>
RedBoot> <TT
CLASS="USERINPUT"
><B
>mcmp -s 0x100000 -d 0x200000 -l 0x20</B
></TT
></PRE
></TD
></TR
></TABLE
> </P
><P
>Compare two buffers which don't match.
Only the first non-matching element is displayed.
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>
RedBoot> <TT
CLASS="USERINPUT"
><B
>mcmp -s 0x100000 -d 0x200000 -l 0x30 -2</B
></TT
>
Buffers don't match - 0x00100020=0x6000, 0x00200020=0x0000</PRE
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