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32/64-Bit 80X86 Assembly Language Architecture by James Leiterman

32/64-Bit 80X86 Assembly Language Architecture James Leiterman ebook
Page: 450
ISBN: 1598220020, 9781598220025
Format: chm
Publisher: Jones & Bartlett Publishers

This allows for the assembly to do away with some instructions by just making them alias to others: for example, there is no instruction to load small immediate values onto a GPR. These processors internally do any kind of tricks - pipelining, instruction reordering, branch prediction, so what happens at the physical level is quite distant from the assembly you may write. [@Architecture Astronaut : "(1) confuses me. I know absolutely nothing in low-level stuff, so this will be a very newbie question. The floating-point registers are . I'm experimenting with 64-bit programming now, but I don't foresee switching over to 64 bit in my released software until nearly all my users have switched over. Aug 20, 2013 - Most likely it costs a bit. By "necessary" One-liner answer (and hence a comment): since you can easily run any application from any folder without knowing its architecture, then there's clearly no compulsory reason for this separation. I was so glad to get rid of conditionally compiled byte-string/Unicode builds when I dropped support for Win 9x, that I don't want to go back to conditional compilation hell for 32/64 bit. (4) Have Anyway, no problems with it, and I've been coding in Assembler too. Oct 3, 2011 - 3264-bit 80x86 Assembly Language Architecture 450 pages | Feb 19 2011 |ISBN: 1598220020 | PDF | 5.5 Mb This book discusses 32- and 64-bit 80x 86 assembly language programming inclusive of t. Jun 27, 2012 - I know that on a 64-bit version of Windows the "Program Files" folder is for 64-bit programs and the "Program Files (x86)" folder is for 32-bit programs, but why is this even necessary? Where possible, our operating system provides high-level programmatic access to CPU features, a set of C language APIs that encapsulate the complexities of the x86 architecture and its long list of eccentricities. The system for 32/64 application distinction furthers this goal. Is machine language - the series of numbers to that tell the physical computer exactly what to do - always binary? Apr 20, 2014 - Is there an alternative to bits? Jan 10, 2012 - When the x86 architecture gained 64-bit support, not only were the registers expanded to 64-bit, the register set itself was expanded to 16 general-purpose registers, 16 MMX-technology registers and 16 SSE-technology registers. While the majority of code is written in C, the initial bootstrap code and interrupt handlers are assembly coded. Dec 18, 2012 - Tests are simple to run on systems ranging from a uniprocessor 32-bit with 128MB of memory to a 96 thread, 64-bit, 1TB Enterprise server.