27 lines
796 B
Plaintext
27 lines
796 B
Plaintext
/* ARM assembly Raspberry PI */
|
|
/* program ending.s */
|
|
|
|
/* Constantes */
|
|
.equ EXIT, 1 @ Linux syscall
|
|
|
|
/* Initialized data */
|
|
.data
|
|
|
|
/* code section */
|
|
.text
|
|
.global main
|
|
main: @ entry of program
|
|
push {fp,lr} @ saves registers
|
|
|
|
OK:
|
|
@ end program OK
|
|
mov r0, #0 @ return code
|
|
b 100f
|
|
NONOK:
|
|
@ if error detected end program no ok
|
|
mov r0, #1 @ return code
|
|
100: @ standard end of the program
|
|
pop {fp,lr} @restaur registers
|
|
mov r7, #EXIT @ request to exit program
|
|
swi 0 @ perform the system call Linux
|