# add 17 and 25 then print the result

# Written by: Dylan Brotherston <d.brotherston@unsw.edu.au>
# On: 2023-02-12
#
# Written as a COMP1521 lecture example

# Constant for the magic number of the print integer syscall
SYSCALL_PRINT_INT  = 1
# Constant for the magic number of the print character syscall
SYSCALL_PRINT_CHAR = 11

# Constant for the return value of the main function
EXIT_SUCCESS       = 0

.text
.globl main
main:
	# x in $t0
	# y in $t1
	# z in $t2

	li	$t0, 17                   # x = 17
	li	$t1, 25                   # y = 25

	add	$t2, $t1, $t0             # z = x + y

	# printf("%d", z);
	move	$a0, $t2                  # move the result of the addition into the first argument to the syscall, if we are copying the contents of one register to another register we use MOVE
	li	$v0, SYSCALL_PRINT_INT    # magic number for the print int syscall ( printf("%d") )
	syscall

	# printf("%c", '\n');
	li	$a0, '\n'                 # load the newline character as the first argument to the syscall, as a character is an immediate value we use LI
	li	$v0, SYSCALL_PRINT_CHAR   # magic number for the print char syscall ( printf("%c") )
	syscall

	# return 0
	li	$v0, EXIT_SUCCESS
	jr	$ra