Adding Numbers Using Pointers

Pointers to add numbers

The following pseudocode is an instruction to add numbers using pointers:

(rbx) + (rax) -> (rbx)

The pointers (rax)and (rbx) refer to the contents of memory cells whose addresses are stored in %RAX and %RBX CPU registers.

Add numbers in different environments

Now we’ll explore how we add numbers by using pointers in following languages:

Add numbers in C/C++ using pointers

The expression (rbx) + (rax) -> (rbx) is equivalent to the following C/C++ language expression:

*pb = *pb + *pa;

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