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32/64-Bit 80X86 Assembly Language Architecture James Leiterman
Publisher: Jones & Bartlett Publishers

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. If 64-bits processors replace 32-bits processors, should programmers compile app that uses less than 2 GB of RAM for 32-bits? 32-bits app uses smaller amount . Apr 19, 2009 - AMD64 architecture is an extension of x86 architecture with full backward compatibility. Should a programmer that does not program in Assembly and does not program compilers learn SSE? The architecture became widespread as a basis of personal computers and workstations. The system for 32/64 application distinction furthers this goal. I'd rather go the path to release different versions for each platform (32/64-bit for Windows, Linux, Solaris, MacOS, etc) and patch at runtime the executable to use different versions of functions depending of the processor features available (like what FastCode does). Assembler code: rewrite it in Pascal so it works on any target. 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? Dec 2, 2009 - Si deseas aprender más al respecto, el autor aconseja el texto 32/64-Bit 80x86 Assembly Language Architecture ( ISBN# 1598220020 ). For example the size of a pointer is larger on a 64 bit platform this tends to make the size of a program larger. 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. Mar 29, 2011 - Is it CISC architecture? May 15, 2012 - What is more native on the latest 64-bit processor: 32-bit x86 code or intermediate code just-in-time compiled to take advantage of the 64-bit architecture and latest SSE instruction set? Second: 64-bits processors support 32-bits processors. May 18, 2012 - Delphi Compiler RTTI Enhancements – video from Delphi compiler architect Barry Kelly from when extended RTTI was added to Delphi 2010 (downloadable here) 64-bit Windows application development has been introduced in RAD Studio XE2; On 64-bit Windows, Task Manager highlights 32-bit (x86) applications by suffixing the process name with *32; 64-bit (x64) applications have no suffix.