/* AC 17/18
 * TPC3 Ex1 
 */
.text
.global  maiordif
maiordif:	# dispensando o uso de %ebp, usando diretamente %esp
        movl    4(%esp), %eax
        movl    8(%esp), %edx
        movl    12(%esp), %ecx
        cmpl    %edx, %eax
        jge cont1
        push	%edx  # troca
        mov	%eax, %edx
        pop	%eax

cont1:  cmpl    %ecx, %eax
        jge cont2
        mov	%ecx, %eax

cont2:	cmp	%ecx, %edx
	jle cont3
	mov	%ecx, %edx

cont3: sub	%edx, %eax
       ret

/*****************************/
/* AC 17/18
 * TPC3 Ex2 
 */
.text
.global  procura
procura:
	push	%ebp
	mov	%esp, %ebp
	push	%ebx
	movl    8(%ebp), %ecx
	movl    12(%ebp), %edx
	movl    16(%ebp), %ebx
	mov	$0, %eax
        
while:	cmp 	%edx, %eax
	jnl notfound
	cmpl    (%ecx, %eax, 4), %ebx
	je found
	inc 	%eax
	jmp while

notfound:
	mov	$-1, %eax
found:
	pop	%ebx
	pop	%ebp
	ret