.section .data
number_printing_message:
	.asciz "The number was %d\n"
.section .text

// Put the parameter in rsi
print_number:
	mov $number_printing_message, %rdi
	mov $0, %rax
	call printf
	ret

// First number goes in R8, second in R9
// We won't change either register (const R8, const R9)
// Return value will be in R10
add_numbers: 
	mov %r8, %r10
	add %r9, %r10
	ret

// The number to square goes on the stack
// The result will be on the stack in its place
square_number:
	pop %r14
	pop %rax
	mul %rax
	push %rax
	push %r14
	ret

square_number_nopop:
#	mov 0x8(%rbp), %rax
#	mul %rax
#	mov %rax, 0x8(%rbp)
#	add $8, %rsp
	jmp done
	ret

push_extra_values:
	push %rax
	mov $10, %rbx
	push %rbx
	add $16, %rsp
	ret

.globl main
main:
	mov $921, %rsi
	call print_number

	mov $123, %rsi
	push %rsi
	call print_number
	pop %rsi

	mov %rsi, %r8
	mov $42, %r9
	call add_numbers
	mov %r10, %rsi
	call print_number
	
	push $20
	call square_number
	pop %rsi
	call print_number
	
	push $352
	call square_number
	pop %rsi
	call print_number

	call push_extra_values

	call square_number_nopop
done:
	mov $42, %rsi
	call print_number

	# Exit the program with status 0
	movl $1, %eax
	movl $300, %ebx
	int $0x80