Top "Att" questions

The point of test %eax %eax

Possible Duplicate: x86 Assembly - ‘testl’ eax against eax? I'm very very new to assembly language programming, and I'm currently …

assembly x86 att

Set adb vendor keys

EDIT: I figured out the problem, i think. ADB found out I wasn't on the latest updates (at&t …

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The difference between cmpl and cmp

I am trying to understand assembly to be able to solve a puzzle. However I encountered the following instructions: 0x0000000000401136 &…

assembly x86 x86-64 att instructions

What does the MOVZBL instruction do in IA-32 AT&T syntax?

What exactly does this instruction do? movzbl 0x01(%eax,%ecx), %eax

assembly x86 att zero-extension

What does cltq do in assembly?

0x0000000000400553 <main+59>: mov -0x4(%rbp),%eax 0x0000000000400556 <main+62>: cltq 0x0000000000400558 <main+64>: shl $0x3,%…

assembly x86 gnu-assembler att

movq assembly function

I was reading some code and was not sure what this line does: movq (%rsp), %rsp

assembly x86-64 att

What is the jmpq command doing in this example

We are using gdb debugger to read assembly functions. In assembly, we have the following instructions: mov 0xc(%rsp),%eax …

assembly terminal gdb att

x86 cmpl and jne

I'm tracing some x86 code for an assignment, and I was wondering what exactly "cmpl" does and how to predict …

assembly x86 att

Limitations of Intel Assembly Syntax Compared to AT&T

To me, Intel syntax is much easier to read. If I go traipsing through assembly forest concentrating only on Intel …

linux assembly x86 att bsd

What is callq instruction?

I have some gnu assembler code for the x86_64 architecture generated by a tool and there are these instructions: movq %…

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