📄 mfill-command.html
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><H1
><A
NAME="MFILL-COMMAND"
></A
>mfill</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN1577"
></A
><H2
>Name</H2
>mfill -- Fill RAM with a specified pattern</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN1580"
></A
><H2
>Synopsis</H2
><P
><B
CLASS="COMMAND"
>mfill</B
> {-b <TT
CLASS="REPLACEABLE"
><I
>location</I
></TT
>} {-l <TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
>} {-p <TT
CLASS="REPLACEABLE"
><I
>value</I
></TT
>} [-1 | -2 | -4]</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1593"
></A
><H2
>Arguments</H2
><DIV
CLASS="INFORMALTABLE"
><P
></P
><A
NAME="AEN1595"
></A
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TITLE="C1"><COL
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WIDTH="1*"
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WIDTH="1*"
TITLE="C4"><THEAD
><TR
><TH
>Name</TH
><TH
>Type</TH
><TH
>Description</TH
><TH
>Default</TH
></TR
></THEAD
><TBODY
><TR
><TD
>-b <TT
CLASS="REPLACEABLE"
><I
>location</I
></TT
></TD
><TD
>Memory address</TD
><TD
>Location in memory for start of data.</TD
><TD
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>none</I
></SPAN
></TD
></TR
><TR
><TD
>-l <TT
CLASS="REPLACEABLE"
><I
>length</I
></TT
></TD
><TD
>Number</TD
><TD
>Length of data</TD
><TD
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>none</I
></SPAN
></TD
></TR
><TR
><TD
>-p <TT
CLASS="REPLACEABLE"
><I
>pattern</I
></TT
></TD
><TD
>Number</TD
><TD
>Data value to fill with</TD
><TD
>0</TD
></TR
><TR
><TD
>-1</TD
><TD
> </TD
><TD
>Access one byte (8 bits) at a time.
Only the least significant 8 bits of the pattern will be used.</TD
><TD
>-4</TD
></TR
><TR
><TD
>-2</TD
><TD
> </TD
><TD
>Access two bytes (16 bits) at a time.
Only the least significant 16 bits of the pattern will be used.</TD
><TD
>-4</TD
></TR
><TR
><TD
>-4</TD
><TD
> </TD
><TD
>Access one word (32 bits) at a time.</TD
><TD
>-4</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1643"
></A
><H2
>Description</H2
><P
>Fills a range of memory with the given pattern.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1646"
></A
><H2
>Examples</H2
><P
>Fill a buffer with zeros.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>
RedBoot> <KBD
CLASS="USERINPUT"
>x -b 0x100000 -l 0x20</KBD
>
00100000: 00 3E 00 06 00 06 00 06 00 00 00 00 00 00 00 00 |.>..............|
00100010: 00 00 00 78 00 70 00 60 00 60 00 60 00 60 00 60 |...x.p.`.`.`.`.`|
RedBoot> <KBD
CLASS="USERINPUT"
>mfill -b 0x100000 -l 0x20</KBD
>
RedBoot> <KBD
CLASS="USERINPUT"
>x -b 0x100000 -l 0x20</KBD
>
00100000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00100010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|</PRE
></TD
></TR
></TABLE
> </P
><P
>Fill a buffer with a pattern.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>
RedBoot> <KBD
CLASS="USERINPUT"
>mfill -b 0x100000 -l 0x20 -p 0xDEADFACE</KBD
>
RedBoot> <KBD
CLASS="USERINPUT"
>x -b 0x100000 -l 0x20</KBD
>
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
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>
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