I get the same results as hdb.

My Perl is 64bit, and I'm on a *BSD box -- pertinent bits from perl -V: use64bitint=define, use64bitall=define USE_64_BIT_ALL

print unpack( "b64", pack( "Q",   4_294_967_295)), "\n";
print unpack( "b64", pack( "Q", 126_294_967_295)), "\n";
print unpack( "b64", pack( "Q", 4294967295)), "\n";
1111111111111111111111111111111100000000000000000000000000000000
1111111111000010001000111110011010111000000000000000000000000000
1111111111111111111111111111111100000000000000000000000000000000

[download]

--Chris

EDIT: I might add, it's a 6core AMD CPU (AM2 I think) 
Yes. What say about me, is true.

In reply to Re: Convert unsigned long int (64bit) to binary string(64bits) by taint
in thread Convert unsigned long int (64bit) to binary string(64bits) by Ergometer

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