How to handle 64 bit arithmetic operation at 32 bit compiled perl interpreter?H
Hi,
Here is the issue. From the program snippet I have Base: 0x1800000000, Size: 0x3FFE7FFFFFFFF which are of 40 and 56 bits. SO I used use bignum to do the math but summing them up I always failed having correct result.
Code:
perl interpreter info,
perl, v5.8.8 built for i386-linux-thread-multi
Program snippet,
Code:
use bignum qw/hex/;
$x ="SAD_MISS_REGION:Base:Size
SAD_MISS_REGION:0x100000000:0x100000000
SAD_MISS_REGION:0x400000000:0x400000000
SAD_MISS_REGION:0x1800000000:0x3FFE7FFFFFFFF";
while ( $x =~ /SAD_MISS_REGION:(.+):(.+)/g ) {
$p = $1; $q = $2;
$phex = hex($1); $qhex = hex($2);
}
print "\n\n\n\nBase: $p, Size: $q \n";
print "\n\n\n\nBaseinDecimal: $phex, SizeinDesimal: $qhex \n";
$z = $phex + $qhex;
print "Z has summed up value: $z\n";
$zhex = unpack "H*", $z;
#$zhex = uc(sprintf("%x\n", $z));
print "Hexadecimal number of Z: ", $zhex, "\n";
output:
Base: 0x1800000000, Size: 0x3FFE7FFFFFFFF
BaseinDecimal: 103079215104, SizeinDesimal: 1125796827627519
Z has summed up value: 1125899906842623
Hexadecimal number of Z: 31313235383939393036383432363233
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LEARN ABOUT SUSE
gappletviewer
GAPPLETVIEWER(1) GNU GAPPLETVIEWER(1)NAME
gappletviewer - Load and runs an applet
SYNOPSIS
appletviewer [OPTION]... URL...
appletviewer [OPTION]... -code CODE
appletviewer [OPTION]... -plugin INPUT,OUTPUT
DESCRIPTION
The appletviewer tool loads and runs an applet.
Use the first form to test applets specified by tag. The URL should resolve to an HTML document from which the appletviewer will extract
applet tags. The APPLET, EMBED and OBJECT tags are supported. If a given document contains multiple applet tags, all the applets will be
loaded, with each applet appearing in its own window. Likewise, when multiple URLs are specified, each applet tag instance is given its
own window. If a given document contains no recognized tags the appletviewer does nothing.
appletviewer http://www.gnu.org/software/classpath/
Use the second form to test an applet in development. This form allows applet tag attributes to be supplied on the command line. Only one
applet may be specified using the -code option. The -code option overrides the URL form -- any URLs specified will be ignored.
appletviewer -code Test.class -param datafile,data.txt
gcjwebplugin uses the third form to communicate with the appletviewer through named pipes.
OPTIONS
URL OPTIONS
-debug
This option is not yet implemented but is provided for compatibility.
-encoding CHARSET
Use this option to specify an alternate character encoding for the specified HTML page.
APPLET TAG OPTIONS
-code CODE
Use the -code option to specify the value of the applet tag CODE attribute.
-codebase CODEBASE
Use the -codebase option to specify the value of the applet tag CODEBASE attribute.
-archive ARCHIVE
Use the -archive option to specify the value of the applet tag ARCHIVE attribute.
-width WIDTH
Use the -width option to specify the value of the applet tag WIDTH attribute.
-height HEIGHT
Use the -height option to specify the value of the applet tag HEIGHT attribute.
-param NAME,VALUE
Use the -param option to specify values for the NAME and VALUE attributes of an applet PARAM tag.
PLUGIN OPTION
-plugin INPUT,OUTPUT
gcjwebplugin uses the -plugin option to specify the named pipe the appletviewer should use for receiving commands (INPUT) and the one
it should use for sending commands to gcjwebplugin (OUTPUT).
DEBUGGING OPTION
-verbose
Use the -verbose option to have the appletviewer print debugging messages.
STANDARD OPTIONS
-help
Use the -help option to have the appletviewer print a usage message, then exit.
-version
Use the -version option to have the appletviewer print its version, then exit.
-JOPTION
Use the -J option to pass OPTION to the virtual machine that will run the appletviewer. Unlike other options, there must not be a
space between the -J and OPTION.
BUGS SEE ALSO AUTHOR 0.98 2010-07-05 GAPPLETVIEWER(1)
07-11-2012
