[ARM] Hello World 출력하기

.text _start: .global _start      @ sys_write ( fd, pstr, len )    @ r7=4 r0 r1 r2    mov r0, #1      @ fd <- stdout    adr r1, msg    @ pstr <- * msg    mov r2, #14    @ len <- 14    mov r7, #4      @ syscall <- sys_write    swi 0             @ system call      @ sys_exit ( exitcode )    @ r7=1 r0    mov r0, #0      @ exitcode <- 0    mov r7, #1      @ syscall <- sys_exit    swi 0             @ system call msg:   .asciz "Hello, world!\n" .end