CODEWITHSUNDEEP
nasm
The Mask
The Mask

Reputation: 17427

What is label address?

I can't find in the documentation the exactly implementation of label(not in modern assemblies) To where does it points? I had in my mind that's the address of first instruction,for example:

global _start
section .text
_start:
    call exit
exit:
    mov eax,1
    mov ebx,20
    int 0x80

section .data
list:
    dd exit

the list shouldn't be same address as exit that's the first seen by label? I want to do something like this:

mov eax,list
call eax

it's a try to make function-pointer-like in assembly.

Upvotes: 0

Views: 1155

Answers (1)

Marc B
Marc B

Reputation: 360732

The label is just a mnemonic referring to the address of the first instruction AFTER the label. e.g. exit: points to wherever the mov eax,1 physically exists in ram.

Upvotes: 2

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