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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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>PowerPC Architectural Simulator Setup</TITLE
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><A
NAME="SETUP-PPC-SIM">PowerPC Architectural Simulator Setup</H1
><P
>The PowerPC simulator is an architectural simulator which
implements all the features of the PowerPC needed to run eCos. The
current implementation provides accurate simulation of the instruction
set and timers, as well as having generic support for diagnostic
output  and exceptions.</P
><P
>The simulator also allows devices to be simulated, but no
device simulation support has been defined for the serial device
drivers in this release.</P
><P
>To simplify connection to the simulator, you are advised to
create a GDB macro by putting the following code in your personal
GDB start-up file (gdb.ini on Windows and .gdbinit on UNIX).</P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>define psim   
 target sim -o &#8217;/iobus/pal&commat;0xf0001000/reg 0xf0001000 32&#8217;   
 rbreak cyg_test_exit   
 rbreak cyg_assert_fail  
end</PRE
></TD
></TR
></TABLE
><P
>You can then connect to the simulator by invoking the command <B
CLASS="COMMAND"
>psim</B
> on
the command line:</P
><TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>(gdb) psim</PRE
></TD
></TR
></TABLE
><P
>You can achieve the same effect by typing out the macro&#8217;s
content on the command line if necessary.</P
><DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>Note: </B
>The PowerPC simulator cannot execute binaries built for any
of the supported hardware targets. You must generate a configuration
using the PowerPC simulator platform: 
<TABLE
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><TR
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>$ ecosconfig new psim</PRE
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>
 or some such.</P
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