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This is the third edition of this assembly language programming textbook introducing programmers to 64 bit Intel assembly language. The primary addition to the third edition is the discussion of the new version of the free integrated development environment, ebe, designed by the author specifically to meet the needs of assembly language programmers. The new ebe is a C++ program using the Qt library to implement a GUI environment consisting of a source window, a data window, a register, a floating point register window, a backtrace window, a console window, a terminal window and a project window along with 2 educational tools called the "toy box" and the "bit bucket." The source window includes a full-featured text editor with convenient controls for assembling, linking and debugging a program. The project facility allows a program to be built from C source code files and assembly source files. Assembly is performed automatically using the yasm assembler and linking is performed with ld or gcc. Debugging operates by transparently sending commands into the gdb debugger while automatically displaying registers and variables after each debugging step. Additional information about ebe can be found at http: //www.rayseyfarth.com. The second important addition is support for the OS X operating system. Assembly language is similar enough between the two systems to cover in a single book. The book discusses the differences between the systems. The book is intended as a first assembly language book for programmers experienced in high level programming in a language like C or C++. The assembly programming is performed using the yasm assembler automatically from the ebe IDE under the Linux operating system. The book primarily teaches how to write assembly code compatible with C programs. The reader will learn to call C functions from assembly language and to call assembly functions from C in addition to writing complete programs in assembly language. The gcc compiler is used internally to compile C programs. The book starts early emphasizing using ebe to debug programs, along with teaching equivalent commands using gdb. Being able to single-step assembly programs is critical in learning assembly programming. Ebe makes this far easier than using gdb directly. Highlights of the book include doing input/output programming using the Linux system calls and the C library, implementing data structures in assembly language and high performance assembly language programming. Early chapters of the book rely on using the debugger to observe program behavior. After a chapter on functions, the user is prepared to use printf and scanf from the C library to perform I/O. The chapter on data structures covers singly linked lists, doubly linked circular lists, hash tables and binary trees. Test programs are presented for all these data structures. There is a chapter on optimization techniques and 3 chapters on specific optimizations. One chapter covers how to efficiently count the 1 bits in an array with the most efficient version using the recently-introduced popcnt instruction. Another chapter covers using SSE instructions to create an efficient implementation of the Sobel filtering algorithm. The final high performance programming chapter discusses computing correlation between data in 2 arrays. There is an AVX implementation which achieves 20.5 GFLOPs on a single core of a Core i7 CPU. A companion web site, http: //www.rayseyfarth.com, has a collection of PDF slides which instructors can use for in-class presentations and source code for sample programs.
مخطئون الذين يعتقدون أن أوروبا ضعيفة وغير فاعلة، فقد قلب مارك ليونارد، الذي هو واحد من أكبر المفكرين في بريطانيا القناعة رأساً على عقب، وجادل بأن أوروبا تعيد صياغة العالم على صورتها. تبدو أوروبا ميتة إذا ما نظر إليها بعيون أمريكية، لكن بالمقابل -كما يرى المؤلف- فإن أمريكا باعها محدود وقاصر؛ وبوسع أمريكا أن ترشو وتُخوف لا بل أن تفرض إرادتها على أي بقعة في العالم، لكن ما إن تدير ظهرها للذين استخدمت معهم هذه الوسائل حتى تتضاءل قوتها وتأفل. أما أوروبا فإنها على عكس أمريكا باعها طويل وقوي وقيمها تنتشر من ألبانيا في القارة الأوروبية حتى زامبيا في إفريقيا، وتجذب أوروبا دولاً أخرى إلى مدارها ولا تُعرِّف نفسها بالمقارنة مع أضدادها من الدول، لكن ما إن تقع تلك الدول تحت تأثير قوانينها وأعرافها حتى تتغير دفعة واحدة وللأبد. يضعنا هذا الكتاب أمام تحد بأن ننظر إلى أوروبا ليس كإخطبوط من البيروقراطية والتنظيمات، إنما ننظر إليها كنموذج ثوري للمستقبل؛ ليس بمقدورنا أن ننسى بأن أوروبا قد تأسست لحمايتنا من الحرب، وأنها المفتاح الذي يفتح الباب أمام الديمقراطية للانتشار. يشرح كتاب -لماذا سيكون القرن الواحد والعشرون قرنا أوروبيا- موقع أوروبا في العالم، ويراجع الماضي ويُنظِّر للمستقبل، ويؤكد في دفاعه عن أوروبا أنها قادرة على صياغة عالم جديد وأفضل. العبيكان للنشر

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