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<!-- Copyright (C) 2003 Red Hat, Inc. --> <!-- This material may be distributed only subject to the terms --> <!-- and conditions set forth in the Open Publication License, v1.0 --> <!-- or later (the latest version is presently available at --> <!-- http://www.opencontent.org/openpub/). --> <!-- Distribution of the work or derivative of the work in any --> <!-- standard (paper) book form is prohibited unless prior --> <!-- permission is obtained from the copyright holder. --> <HTML ><HEAD ><TITLE >dump</TITLE ><meta name="MSSmartTagsPreventParsing" content="TRUE"> <META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="eCos Reference Manual" HREF="ecos-ref.html"><LINK REL="UP" TITLE="Common Commands" HREF="common-commands.html"><LINK REL="PREVIOUS" TITLE="disks" HREF="disks-command.html"><LINK REL="NEXT" TITLE="help" HREF="help-command.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >eCos Reference Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="disks-command.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="help-command.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="DUMP-COMMAND">dump</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN3226" ></A ><H2 >Name</H2 >dump -- Display memory.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN3229"><H2 >Synopsis</H2 ><P ><B CLASS="COMMAND" >dump</B > {-b <TT CLASS="REPLACEABLE" ><I >location</I ></TT >} [-l <TT CLASS="REPLACEABLE" ><I >length</I ></TT >] [-s] [-1 | -2 | -4]</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3241" ></A ><H2 >Arguments</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN3243"><P ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><THEAD ><TR ><TH WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Name</TH ><TH WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Type</TH ><TH WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Description</TH ><TH WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Default</TH ></TR ></THEAD ><TBODY ><TR ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >-b <TT CLASS="REPLACEABLE" ><I >location</I ></TT ></TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Memory address</TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Location in memory 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 WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >-l <TT CLASS="REPLACEABLE" ><I >length</I ></TT ></TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Number</TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Length of data</TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >32</TD ></TR ><TR ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >-s</TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Boolean</TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >Format data using Motorola S-records.</TD ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" > </TD ></TR ><TR ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >-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" >-1</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" >-1</TD ></TR ><TR ><TD WIDTH="25%" ALIGN="LEFT" VALIGN="TOP" >-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" >-1</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3289" ></A ><H2 >Description</H2 ><P >Display a range of memory on the system console.</P ><P >The <B CLASS="COMMAND" >x</B > is a synonym for <B CLASS="COMMAND" >dump</B >.</P ><P >Note that this command could be detrimental if used on memory mapped hardware registers. </P ><P >The memory is displayed at most sixteen bytes per line, first as the raw hex value, followed by an ASCII interpretation of the data. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3297" ></A ><H2 >Examples</H2 ><P >Display a buffer, one byte at a time. <TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" > RedBoot> <TT CLASS="USERINPUT" ><B >mfill -b 0x100000 -l 0x20 -p 0xDEADFACE</B ></TT > RedBoot> <TT CLASS="USERINPUT" ><B >x -b 0x100000</B ></TT > 00100000: CE FA AD DE CE FA AD DE CE FA AD DE CE FA AD DE |................| 00100010: CE FA AD DE CE FA AD DE CE FA AD DE CE FA AD DE |................|</PRE ></TD ></TR ></TABLE > </P ><P >Display a buffer, one short (16 bit) word at a time. Note in this case that the ASCII interpretation is suppressed. <TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" > RedBoot> <TT CLASS="USERINPUT" ><B >dump -b 0x100000 -2</B ></TT > 00100000: FACE DEAD FACE DEAD FACE DEAD FACE DEAD 00100010: FACE DEAD FACE DEAD FACE DEAD FACE DEAD </PRE ></TD ></TR ></TABLE > </P ><P >Display a buffer, one word (32 bit) word at a time. Note in this case that the ASCII interpretation is suppressed. <TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" > RedBoot> <TT CLASS="USERINPUT" ><B >dump -b 0x100000 -4</B ></TT > 00100000: DEADFACE DEADFACE DEADFACE DEADFACE 00100010: DEADFACE DEADFACE DEADFACE DEADFACE </PRE ></TD ></TR ></TABLE > </P ><P >Display the same buffer, using Motorola S-record format. <TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" > RedBoot> <TT CLASS="USERINPUT" ><B >dump -b 0x100000 -s</B ></TT > S31500100000CEFAADDECEFAADDECEFAADDECEFAADDE8E S31500100010CEFAADDECEFAADDECEFAADDECEFAADDE7E</PRE ></TD ></TR ></TABLE > </P ><P >Display a buffer, with visible ASCII strings. <TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="SCREEN" > RedBoot> <TT CLASS="USERINPUT" ><B >d -b 0xfe00b000 -l 0x80</B ></TT > 0xFE00B000: 20 25 70 0A 00 00 00 00 41 74 74 65 6D 70 74 20 | %p.....Attempt | 0xFE00B010: 74 6F 20 6C 6F 61 64 20 53 2D 72 65 63 6F 72 64 |to load S-record| 0xFE00B020: 20 64 61 74 61 20 74 6F 20 61 64 64 72 65 73 73 | data to address| 0xFE00B030: 3A 20 25 70 20 5B 6E 6F 74 20 69 6E 20 52 41 4D |: %p [not in RAM| 0xFE00B040: 5D 0A 00 00 2A 2A 2A 20 57 61 72 6E 69 6E 67 21 |]...*** Warning!| 0xFE00B050: 20 43 68 65 63 6B 73 75 6D 20 66 61 69 6C 75 72 | Checksum failur| 0xFE00B060: 65 20 2D 20 41 64 64 72 3A 20 25 6C 78 2C 20 25 |e - Addr: %lx, %| 0xFE00B070: 30 32 6C 58 20 3C 3E 20 25 30 32 6C 58 0A 00 00 |02lX <> %02lX...| 0xFE00B080: 45 6E 74 72 79 20 70 6F 69 6E 74 3A 20 25 70 2C |Entry point: %p,|</PRE ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="disks-command.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ecos-ref.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="help-command.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >disks</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="common-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >help</TD ></TR ></TABLE ></DIV ></BODY ></HTML >