[section .data]
strHello db "Hello World"
STRLEN equ $-strHello
MessageLength equ 9
Message db "hi!!!! "
[section .text]
global main
main:
mov edx,STRLEN;
mov ecx,strHello;
mov ebx,1
mov eax,4
int 0x80
call DispStr
mov ebx,0
mov eax,1
int 0x80
DispStr:
mov ax,MessageLength
mov dh,0
mul dh
add ax,Message
mov bp,ax
mov ax,ds
mov es,ax
mov cx,MessageLength
mov ax,01301h
mov bx,0007h
mov dl,0
int 10h
ret
编译并运行:
$ nasm -f elf64 helloworld.asm -o helloworld.o
$ gcc -s -o helloworld helloworld.o
helloworld.o: In function `DispStr':
helloworld.asm:(.text+0x31): relocation truncated to fit: R_X86_64_16 against `.data'
collect2: ld return 1