Hacker s delight warren henry s
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From the basics of bitwise operations to Single-Error Correcting codes, this book contains an impressive repertoire of tricks for low-level software work. The first edition was released in 2002, and the second in 2013. A godsend for library developers, compiler writers, and lovers of elegant hacks, it deserves a spot on your shelf right next to Knuth. The problem is that by 2012, none of it made sense. If you enjoyed you'll probably like the earlier chapters, though you shouldn't be allowed to read them. This web page is about the second edition of Hacker's Delight. Warren Number Of Pages 512 pages Edition Description Revised Format Hardcover Publication Date 2012-09-25 Language English Publisher Addison Wesley Professional Publication Year 2012 Additional Details Edition Number 2 Copyright Date 2013 Illustrated Yes Dimensions Weight 29.

Hacker's Delight Hacker's Delight Second Edition Current This site is an adjunct to the book Hacker's Delight Addison-Wesley, 2003, 2012. Thoroughly updates a 10-year-old book that's been seeing rising sales in recent years. Practical, unexpected, fascinating solutions that will delight every developer who's excited about their craft. If you enjoyed you'll probably like the earlier chapters, though you shouldn't be allowed to read them. Also available at major book stores. It is possible to write straightforward algorithms implementing these operations, but it is also possible to do it by combining bitwise logical and arithmetic operations in a clever trick.

It contains every trick I knew plus many, many more. And then we went to real nerd-town with considering binary representations of numbers using -2 or even -1 + i as the base. If you're frustrated by branch mispredictions ruining your algorithm's performance, this book might have the branchless algorithm you're looking for. Expressions in computer arithmetic are similar to those of ordinary arithmetic, but the variables denote the contents of computer registers. The Integer Division chapters felt bloated and jammed with proofs, and the section on unusual bases for number systems was pretty much lifted straight from Donald E. To download the superoptimizer itself, including its documentation, click.

The Integer Division chapters felt bloated and jammed with proofs, and the section on unusual bases Hacker's Delight promises to tell the secrets of computer arithmetic, and it very much does that. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. I'm thrilled with all of the new material in the second edition. This book is a chock full of such tricks. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. Approximate floating-point reciprocal square root routine.

If you like numbers, you'll probably like the later ones, though not if you also like any sort of rigour in your maths. I'm not sure I'll ever apply any of these, but I did enjoy the clever mathiness of a state machine implemented without branches. So one should look at this book as being not so much a practical computer science book as a microprocessor-punk novel. The majority of pages are undamaged with minimal creasing or tearing, minimal pencil underlining of text, no highlighting of text, no writing in margins. Computing remainders without computing a quotient.

It's the latter, but it's thorough, almost encyclopedic, in its coverage. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. The value of a computer arithmetic expression is simply a string of bits with no particular interpretation. This hacker is indeed delighted! Hacker's Delight is a software algorithm book by Henry S. More coverage of counting populations and leading zeros.

Practical, unexpected, fascinating solutions that will delight every developer who's excited about their craft. They are designed to work with many contemporary languages, in any software development environment. I'm not sure I'll ever apply any of these, but I did enjoy the clever mathiness of a state machine implemente 4. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are designed to work with many contemporary languages, in any software development environment. Contributions from Correspondents Here is some that has not been incorporated elsewhere in this web site.

If you can get it second-hand, though, consider picking it up; it feels like a book you should own second-hand. Second, modern processors are superscalar: they execute multiple instructions at the same time unless there are data dependencies between the instructions; in order to compare the performance of a straightforward algorithm with that of a tricky one, one has to look at these dependencies, which the book doesn't. Approximate floating-point reciprocal square root routine. The second edition covers two new major topics and expands the overall collection with dozens of additional little tricks, including one that I put to use right away in a binary search algorithm: computing the average of two integers without risking overflow. The second edition has been translated into Korean and is licensed for a translation into Chinese.

It also had a new appendix containing graphs of discrete functions. Thoroughly updates a 10-year-old book that's been seeing rising sales in recent years. If it looks ok you can erase aha. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. Guaranteed to sharpen your skills. The second edition has new chapters on and other.