declare variables in assembly nasm
section .text
global _start ;must be declared for linker (ld)
_start: ;tell linker entry point
mov edx,9 ;message length
mov ecx, stars ;message to write
mov ebx,1 ;file descriptor (stdout)
mov eax,4 ;system call number (sys_write)
int 0x80 ;call kernel
mov eax,1 ;system call number (sys_exit)
int 0x80 ;call kernel
section .data
stars times 9 db '*'
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