## add2.asm  computes and prints sum of two numbers given at runtime
## Registers used:
## $t0 - first number.
## $t1 - second number.
## $t2 - sum of the $t1 and $t2.
## $v0 - syscall parameter and return value.
## $a0 - syscall parameter.

.globl main

main:
	## Get first number from user, put into $t0.
	li $v0, 5 	# load syscall read_int into $v0.
	syscall 	# make the syscall.
	move $t0, $v0 	# move the number read into $t0.
	
	## Get second number from user, put into $t1.
	li $v0, 5 	# load syscall read_int into $v0.
	syscall 	# make the syscall.
	move $t1, $v0 	# move the number read into $t1.

	add $t2, $t0, $t1 # compute the sum.

	## Print out $t2.
	move $a0, $t2 	# move the number to print into $a0.
	li $v0, 1 	# load syscall print_int into $v0.
	syscall 	# make the syscall.
	
	li $v0, 10 	# syscall code 10 is for exit.
	syscall 	# make the syscall.
	
## end. There is no data section.