## hello.asm A "Hello World" program.
## Registers used:
## $v0 - syscall parameter and return value.
## $a0 - syscall parameter-- the string to print.

.text 			#Code starts at 0x00400024 in SPIM
.globl main
main:
	la $a0, hello_msg 	# load addr of hello_msg into $a0.
	li $v0, 4 		# 4 is the print_string syscall.
	syscall 		# do the syscall.
	
	li $v0, 10 		# 10 is the exit syscall.
	syscall 		# do the syscall.
	
	
	.data 		#Data starts at 0x10010000 in SPIM

hello_msg: .asciiz "Hello World\n"
	
## Notes:
## la $a0, hello_msg assembles as 
##    lui $1, 0x1001
##    ori $4, $1, 0
##
## li $v0, 4 assembles as
##    ori $2, $0, 4