Here is one way of doing it:
#!/usr/bin/perl -wl
my $hex = '0x428C0000';
$hex =~ s/0x//i; # Strip the hex 0x if present
print unpack "f", reverse pack "H*", $hex ;
print unpack "f", pack "H*", $hex ;
__END__
Prints on an a little endian platform:
70
5.03150226600469e-041
In this case the first of these looks like the right value.
It is rare that you will encounter a platform where one of these doesn't work. If you do then I have some Perl code for packing and unpacking IEEE 754 floats and doubles independently of the architecture.
--
John.
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