FunctionTest.s

.data
HelloWorld:
	.asciz "Hw"
CallMeAgain:
	.asciz "Call"
.text
.globl _start
_start:
	nop
	call CallMe
	movl $4, %eax
	movl $1, %ebx
	movl $HelloWorld, %ecx
	movl $2, %edx
	int $0x80
	jmp Out

CallMe:
	pushl %ebp
	movl %esp, %ebp
	#enter
	movl $4, %eax
	movl $1, %ebx
	movl $CallMeAgain, %ecx
	movl $13, %edx
	int $0x80
	movl %ebp, %esp
	popl %ebp
	#leave
	ret

Out:
	movl $1, %eax
	movl $0, %ebx
	int $0x80