21 lines
850 B
NASM
21 lines
850 B
NASM
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[bits 64]
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section .text
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global _start ;must be declared for linker (ld)
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_start: ;tell linker entry point
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xchg bx, bx
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mov rdx,len ;message length
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mov rcx,msg ;message to write
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mov rbx,1 ;file descriptor (stdout)
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mov rax,4 ;system call number (sys_write)
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int 0x80 ;call kernel
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mov rax,1 ;system call number (sys_exit)
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int 0x80 ;call kernel
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section .data
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msg db 'Hello, world!',0xa ;our dear string
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len equ $ - msg ;length of our dear string
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