# leap.s - Determine if a given year number is a leap year.
# Use the Gregorian definition
#
# Suggested register use:
# $s0 = the year number
# $s1 = remainder by 400
# $s2 = remainder by 100
# $s3 = remainder by 4

	.data
prompt:		.asciiz "Which year are you curious about?  "
is_msg:		.asciiz "It is a leap year.\n"
is_not_msg:	.asciiz "It is NOT a leap year.\n"

	.text
main:
	li $v0, 4		# Prompt the user for a year to test.
	la $a0, prompt
	syscall
	
	li $v0, 5		# Input an integer value -> $s0
	syscall
	move $s0, $v0
	
# -------------------------------------------------------------------
# Use branch instructions to solve the problem.







# -------------------------------------------------------------------
# This is the code to say it's not a leap year.
not_leap_year:
	li $v0, 4
	la $a0, is_not_msg
	syscall

# -------------------------------------------------------------------
# This is the code to print the affirmative message.
is_leap_year:
	li $v0, 4
	la $a0, is_msg
	syscall

# -------------------------------------------------------------------
# End of program
the_end:
	li $v0, 10
	syscall