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3 votes
5 replies
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I'm looking for an assembly language manual for x86_64 architecture that uses the AT&T style. Is such manual available directly by AT&T? What I found was from [Oracle](https://docs.oracle.com/...
mltm's user avatar
  • 595
2 votes
2 answers
159 views

Consider the assembly program below: .section .data .section .text .global _start _start: pushl 85ドル #make it obvious in memory popl %ebx movl 1,ドル %eax int 0ドルx80 It ...
Hoax's user avatar
  • 25
2 votes
0 answers
81 views

I'm having trouble writing what should be a simple character counting program. Here's the file with the .data section, as given by the author of Learn to Program with Assembly, which I'm following (I ...
2 votes
2 answers
131 views

I'm writing a little toy program to try to help myself better understand this language (AT&T syntax, x86_64 assembly language). Consider this code, if you'll be so kind: .section .data mystring: ....
0 votes
1 answer
93 views

You all were kind enough to help me recently with understanding this language a bit better. I'm working on AT&T syntax x86_64 assembly language through an Apress book. The author gives this code, ...
3 votes
4 answers
245 views

Novice here, with a frustratingly simple question. I'm trying to learn assembly and this has been a stumbling block for me for so long, I would really appreciate help with these concepts. Thanks so ...
1 vote
0 answers
107 views

Some context behind the question. I tried writing a simple exit call like this .data .equ EXIT, 60 .equ STATUS, 0 .text movq EXIT, %rax movq STATUS, %rdi syscall however the code fails with a ...
1 vote
1 answer
79 views

This is the code for a program that, when booted by a bootloader, disables interrupts, loads a GDT descriptor, enables the A20 Line, enables protected mode, and jumps into 32-bit code. .code16 ....
0 votes
0 answers
63 views

Reading the article https://web.archive.org/web/20171219120457/http://nairobi-embedded.org/005_elf_types.html about ELF Object File Types, I faced up with the following assembler x86 instructions: mov ...
ibse's user avatar
  • 635
2 votes
0 answers
35 views

This question regards code from the book "Learn to Program with Assembly" by Jonathan Bartlett. The code in question is on page 96 and is called persondatanamepointer.s. The context is that ...
DeFalco's user avatar
  • 23
3 votes
1 answer
80 views

I've been reading a book called "Learn to Program with Assembly, Jonathan Barlett". In which , I didn't understand the Figure 6-1. Context: The author is explaining register-indirect mode, ...
0 votes
0 answers
33 views

I've been learning x64 assembly lately from a book (Learn to program in Assembly, Jonathan Bartlett). The book claims, "In order to manipulate the data, we have to move it into registers first.&...
0 votes
0 answers
37 views

Here is the code (written in assebly at&t syntax): .section .data .equ N, 1024 v: .skip N * 4 fin: .string "input.txt" fout: .string "output.txt" descriptor:...
0 votes
0 answers
101 views

I am rather new to assembly and have been trying to understand what is happening with the call instruction within this code. I have this simple C++ program that I compiled and disassembled with gdb. #...
Aaron's user avatar
  • 1
1 vote
0 answers
29 views

I wanted to print out first command line argument in x86_64 Assembly on Linux, but I have had hard time getting value of it. For clarification: commands I use to compile this are as -o args.o args.s -...

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