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The point of test %eax %eax [duplicate]

I'm very very new to assembly language programming, and I'm currently trying to read the assembly language generated from a binary. I've run across ...
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What is a semaphore?

...t should let the guests go in sequentially, but when i tried it out, it's random. Eg. Guest 40 came in first before Guest 39. Is there anything we could do to control this? – TNA May 31 '14 at 9:12 ...
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What is the difference between quiet NaN and signaling NaN?

I have read about floating-point and I understand that NaN could result from operations. But I can't understand what these are concepts exactly. What is the difference between them? ...
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SQL Server IN vs. EXISTS Performance

...t. The IN statement requires SQL Server to generate a complete result set, and then create a big IF statement I think. – Randy Minder Jan 14 '10 at 16:04 74 ...
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Cosmic Rays: what is the probability they will affect a program?

Once again I was in a design review, and encountered the claim that the probability of a particular scenario was "less than the risk of cosmic rays" affecting the program, and it occurred to me that I didn't have the faintest idea what that probability is. ...
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How to generate a random string of a fixed length in Go?

I want a random string of characters only (uppercase or lowercase), no numbers, in Go. What is the fastest and simplest way to do this? ...
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Regular expression for floating point numbers

... TL;DR Use [.] instead of \. and [0-9] instead of \d to avoid escaping issues in some languages (like Java). Thanks to the nameless one for originally recognizing this. One relatively simple pattern for matching a floating point number is [+-]?([0-9]...
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Why are functions in Ocaml/F# not recursive by default?

Why is it that functions in F# and Ocaml (and possibly other languages) are not by default recursive? 6 Answers ...
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What makes Scala's operator overloading “good”, but C++'s “bad”?

Operator overloading in C++ is considered by many to be A Bad Thing(tm), and a mistake not to be repeated in newer languages. Certainly, it was one feature specifically dropped when designing Java. ...
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What is the difference between display: inline and display: inline-block?

What exactly is the difference between the inline and inline-block values of CSS display ? 5 Answers ...