/* To build and run this:
as fun_hello_world.s -o fun_hello_world.o --32
ld -m elf_i386 fun_hello_world.o
./a.out
*/

.section .data
hwmessage: 
	.asciz "Hello World\n"
.section .text
.globl _start
_start:
	push $10
	call printhw
	movl $27, %ebx
	movl $1, %eax
	int $0x80

/* Print "hello world" a given number of times
	We'll follow 32-bit C calling convention and put the paramter on the stack
*/

printhw:
	push %ebp
	mov %esp, %ebp
	// We'll have one local variable, and it'll be the loop counter
	sub $4, %esp
	movl 8(%ebp), %eax
	movl %eax, (%esp)
	
	// Loop for printing	
loop_top:
	movl (%esp), %eax
	cmpl $0, %eax
	je done
	dec %eax
	movl %eax, (%esp)

	movl $4, %eax
	movl $1, %ebx
	movl $hwmessage, %ecx
	movl $12, %edx
	int $0x80
	jmp loop_top

done:
	mov %ebp, %esp
	pop %ebp
	
	ret