comment on

Maybe the following helps a bit clarifying what's what:

#!/usr/bin/perl

use strict;
use warnings;

use Data::Hexdumper qw(hexdump);
use integer;

my $Rm = '0xAAAAAAAA'; 
my $Rb = hex $Rm;
my $Rc = pack 'l', $Rb;
my $Rd = unpack 'l', $Rc;
my $Re = $Rd >> 31; 
my $Rx = pack 'l', $Re;

print 'Rm: ', hexdump( $Rm, { suppress_warnings => 1 } );
print 'Rb: ', hexdump( $Rb, { suppress_warnings => 1 } );
print 'Rc: ', hexdump( $Rc, { suppress_warnings => 1 } );
print 'Rd: ', hexdump( $Rd, { suppress_warnings => 1 } );
print 'Re: ', hexdump( $Re, { suppress_warnings => 1 } );
print 'Rx: ', hexdump( $Rx, { suppress_warnings => 1 } );

printf "Rb = 0x%x\t Re = 0x%x\n",$Rb, $Re;
[download]

which displays

Rm:   0x0000 : 30 78 41 41 41 41 41 41 41 41 00 00 00 00 00 00 : 0xAAA
+AAAAA......
Rb:   0x0000 : 32 38 36 33 33 31 31 35 33 30 00 00 00 00 00 00 : 28633
+11530......
Rc:   0x0000 : AA AA AA AA 00 00 00 00 00 00 00 00 00 00 00 00 : .....
+...........
Rd:   0x0000 : 2D 31 34 33 31 36 35 35 37 36 36 00 00 00 00 00 : -1431
+655766.....
Re:   0x0000 : 2D 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 : -1...
+...........
Rx:   0x0000 : FF FF FF FF 00 00 00 00 00 00 00 00 00 00 00 00 : .....
+...........
Rb = 0xaaaaaaaa  Re = 0xffffffffffffffff
[download]

Krambambuli
---

In reply to Re: Implement Arithmetic Shift Right for signed number in perl by Krambambuli
in thread Implement Arithmetic Shift Right for signed number in perl by IamAwesom3

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