I am in the process of learning assembly.
So far I have learned about different segments called text for the instructions, bss for variables, and data for constants.
section .bss:
var resb 4
section .text:
global _start
_start:
mov dword [var], 0 ;
loop:
inc dword [var]
jmp loop
I have a run.sh script to simplify the testing process:
nasm -f elf main.asm && ld -m elf_i386 -s -o main main.o && ./main
I get the following error when i compile with nasm:
$ sh run.sh
main.asm:16: warning: uninitialized space declared in non-BSS section `.bss:': zeroing [-w+zeroing]
run.sh: line 1: 49015 Segmentation fault (core dumped) ./main
What did I do wrong?
I was expecting the var variable to get incremented. Instead I got an error
