assembly - What's the purpose of the LEA instruction? - Stack Overflow
Nov 2, 2009 · From the "Zen of Assembly" by Abrash: LEA, the only instruction that performs memory addressing calculations but doesn't actually address memory. LEA accepts a standard memory …
How to write if-else in assembly? - Stack Overflow
Nov 15, 2016 · How to write the equal condition (in the question) in assembly? Your example has an else statement while mine uses an else if.
assembly - How do AX, AH, AL map onto EAX? - Stack Overflow
When I was in school (in Russia), we were primarily studying the 16-bit assembly language in DOS. I do remember that general purpose registers adhered to the little endian system, e.g. AX was |AL|AH|. …
assembly - What are the ESP and the EBP registers? - Stack Overflow
Feb 12, 2014 · Understanding the stack is very crucial in programming in assembly language as this can affect the calling conventions you will be using regardless of the type. For example, even the cdecl or …
What does the 'and' instruction do to the operands in assembly …
Dec 4, 2018 · What does the 'and' instruction do in assembly language? I was told that it checks the bit order of the operands and sets the 1s to true and anything else to false, but I don't know what it …
x86 - What does ORG Assembly Instruction do? - Stack Overflow
Aug 4, 2010 · can anyone give me a comprehensive description about ORG directive? When and why is it used in assembly written applications? Using Nasm on x86 or AMD64.
/r/asm - where every byte counts - Reddit
Welcome to `r/asm`, the subreddit for Assembly language in all Instruction Set Architectures!
How to write hello world in assembly under Windows?
Jun 21, 2009 · I wanted to write something basic in assembly under Windows. I'm using NASM, but I can't get anything working. How do I write and compile a hello world program without the help of C …
What do the dollar ($) and percentage (%) signs represent in x86 …
Sep 28, 2018 · I am trying to understand how the assembly language works for a micro-computer architecture class, and I keep facing different syntaxes in examples: sub $48, %esp mov %eax, …
assembly - What are the names of the new X86_64 processors registers ...
Nov 18, 2009 · What little assembly I do (and it's becoming about one day a year) is done in assembly rather than C. Related: Why did they use numbers for register names in x86-64? What do the E and …