Search⌘ K
AI Features
Home
Courses
Debugging, Disassembly & Reversing in Linux for x64 Architecture

Incrementing Numbers Using Pointers

Explore how to increment numbers stored in memory by using pointers in pseudocode, C/C++, and x64 assembly language. Understand the assembly instructions used for incrementation, such as inc and add, and see how these operations appear in GDB disassembly output. Gain practical experience by executing increment instructions step-by-step and analyzing memory changes in the debugger environment.

We'll cover the following...

Increment numbers in pseudocode using pointers

In pseudocode, we can use pointers to increment a number stored at the memory location with the address stored in %RAX:

(rax) + 1 -> (rax)

Increment numbers in C/C++ using pointers

In C/C++ language, we can write incrementing numbers using pointers in three possible ways:

C++
*a = *a + 1;
++(*a);
(*a)++;

Increment numbers in assembly language using pointers

In assembly language, we use the instructions inc ...