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<HTML
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>dump</TITLE
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TITLE="Common Commands"
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><TR
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>eCos Reference Manual</TH
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><H1
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><A
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NAME="DUMP-COMMAND">dump</H1
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><DIV
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CLASS="REFNAMEDIV"
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><A
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NAME="AEN3226"
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></A
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><H2
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>Name</H2
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>dump&nbsp;--&nbsp;Display memory.</DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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><A
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NAME="AEN3229"><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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>dump</B
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>  {-b <TT
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CLASS="REPLACEABLE"
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><I
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>location</I
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></TT
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>} [-l <TT
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CLASS="REPLACEABLE"
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><I
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>length</I
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></TT
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>] [-s] [-1 | -2 | -4]</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="AEN3241"
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></A
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><H2
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>Arguments</H2
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><DIV
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CLASS="INFORMALTABLE"
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><A
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NAME="AEN3243"><P
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></P
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><TABLE
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BORDER="1"
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CLASS="CALSTABLE"
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><THEAD
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><TR
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><TH
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WIDTH="25%"
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>Name</TH
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><TH
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ALIGN="LEFT"
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VALIGN="TOP"
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>Type</TH
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><TH
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Description</TH
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><TH
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Default</TH
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></TR
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></THEAD
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><TBODY
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><TR
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-b <TT
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CLASS="REPLACEABLE"
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><I
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>location</I
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></TT
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></TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Memory address</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Location in memory for start of data.</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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><SPAN
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CLASS="emphasis"
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><I
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>none</I
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></SPAN
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></TD
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></TR
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><TR
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-l <TT
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CLASS="REPLACEABLE"
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><I
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>length</I
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></TT
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></TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Number</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Length of data</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>32</TD
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></TR
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><TR
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-s</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Boolean</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Format data using Motorola S-records.</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>&nbsp;</TD
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></TR
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><TR
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-1</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>&nbsp;</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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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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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-1</TD
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></TR
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><TR
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-2</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>&nbsp;</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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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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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-1</TD
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></TR
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><TR
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-4</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>&nbsp;</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>Access one word (32 bits) at a time.</TD
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><TD
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WIDTH="25%"
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ALIGN="LEFT"
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VALIGN="TOP"
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>-1</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="AEN3289"
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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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>Display a range of memory on the system console.</P
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><P
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>The <B
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CLASS="COMMAND"
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>x</B
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> is a synonym for <B
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CLASS="COMMAND"
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>dump</B
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>.</P
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><P
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>Note that this command could
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be detrimental if used on memory mapped hardware registers. </P
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><P
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>The memory is displayed at most sixteen bytes per line, first as the
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raw hex value, followed by an ASCII interpretation of the data. </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="AEN3297"
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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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>Display a buffer, one byte at a time.
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<TABLE
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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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 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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>x -b 0x100000</B
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></TT
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>
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00100000: CE FA AD DE CE FA AD DE  CE FA AD DE CE FA AD DE  |................|
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00100010: CE FA AD DE CE FA AD DE  CE FA AD DE CE FA AD DE  |................|</PRE
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></TD
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></TR
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></TABLE
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> </P
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><P
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>Display a buffer, one short (16 bit) word at a time.  Note in this case that
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the ASCII interpretation is suppressed.
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<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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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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>dump -b 0x100000 -2</B
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></TT
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>
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00100000: FACE DEAD FACE DEAD  FACE DEAD FACE DEAD
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00100010: FACE DEAD FACE DEAD  FACE DEAD FACE DEAD </PRE
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></TD
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></TR
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></TABLE
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> </P
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><P
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>Display a buffer, one word (32 bit) word at a time.  Note in this case that
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the ASCII interpretation is suppressed.
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<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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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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>dump -b 0x100000 -4</B
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></TT
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>
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00100000: DEADFACE DEADFACE DEADFACE DEADFACE
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00100010: DEADFACE DEADFACE DEADFACE DEADFACE </PRE
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></TD
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></TR
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></TABLE
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> </P
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><P
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>Display the same buffer, using Motorola S-record format.
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<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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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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>dump -b 0x100000 -s</B
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></TT
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>
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S31500100000CEFAADDECEFAADDECEFAADDECEFAADDE8E
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S31500100010CEFAADDECEFAADDECEFAADDECEFAADDE7E</PRE
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></TD
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></TR
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></TABLE
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> </P
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><P
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>Display a buffer, with visible ASCII strings.
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<TABLE
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BORDER="5"
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BGCOLOR="#E0E0F0"
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WIDTH="70%"
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><TR
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><TD
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><PRE
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CLASS="SCREEN"
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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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>d -b 0xfe00b000 -l 0x80</B
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></TT
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>
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0xFE00B000: 20 25 70 0A 00 00 00 00  41 74 74 65 6D 70 74 20 | %p.....Attempt |
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0xFE00B010: 74 6F 20 6C 6F 61 64 20  53 2D 72 65 63 6F 72 64 |to load S-record|
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0xFE00B020: 20 64 61 74 61 20 74 6F  20 61 64 64 72 65 73 73 | data to address|
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0xFE00B030: 3A 20 25 70 20 5B 6E 6F  74 20 69 6E 20 52 41 4D |: %p [not in RAM|
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0xFE00B040: 5D 0A 00 00 2A 2A 2A 20  57 61 72 6E 69 6E 67 21 |]...*** Warning!|
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0xFE00B050: 20 43 68 65 63 6B 73 75  6D 20 66 61 69 6C 75 72 | Checksum failur|
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0xFE00B060: 65 20 2D 20 41 64 64 72  3A 20 25 6C 78 2C 20 25 |e - Addr: %lx, %|
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0xFE00B070: 30 32 6C 58 20 3C 3E 20  25 30 32 6C 58 0A 00 00 |02lX &lt;&#62; %02lX...|
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0xFE00B080: 45 6E 74 72 79 20 70 6F  69 6E 74 3A 20 25 70 2C |Entry point: %p,|</PRE
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></TD
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></TABLE
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>
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      </P
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>disks</TD
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