Sp13COA_Hwk2Ex2_1_1ab_MARSMIPS_FinProd

		.data
g: 		.word	 	#10
h: 		.word 		#3
f:		.word
k: 		.word -5
i:		.word 		#temp holder
int_value1:	.word
int_value2:	.word
new_line: 	.asciiz 	"\n"	#new line for legibility
string1: 	.asciiz 	"\nThe constant value (f) is : "
string2: 	.asciiz 	"\nThe first input value (g) is : "
string3: 	.asciiz 	"The second input value (h) is : "

		.text
#part b of 2.1.1
#f = g + (h -5);

_start:
lw $t0, g
lw $t1, h
lw $t3, i
lw $s0, f		#result holder
lw $s1, k		#since this constant is used as a decrement, it is instantiated as a
			#negative signed number

main:
#print the constant just for verification
li	$v0, 4	 		#register address 4 prints strings
la 	$a0, string1
syscall

li	$v0, 1
move	$a0, $s1
syscall

li	$v0, 4
la 	$a0, new_line
syscall

#_____________________________________________________________________________

#print an identifying string to the screen for input 1 i.e. "g"
li	$v0, 4			#same as above for string printing
la 	$a0, string2
syscall

#keyboard input 1
li	$v0, 5		#loading system call 5 reads the 1st keyboard int input
syscall
sw 	$v0, int_value1	#use int_value just to differentiate that this is actual input

la	$t0,($v0)	#stores values of input (g) into temp variable $t0 using load address

#new line
li	$v0, 4
la 	$a0, new_line
syscall

#____________________________________________________________________

#print an identifying string to the screen for input 2 i.e. "h"

li	$v0, 4
la 	$a0, string3
syscall

#keyboard input 2
li	$v0, 5		#loading system call 5 reads the 2nd keyboard int input
syscall
sw 	$v0, int_value2	#use int_value just to differentiate that this is actual input

la	$t1,($v0)	#stores values of input into temp variable $t1 using load address

li	$v0, 4
la 	$a0, new_line
syscall
#____________________________________________________________________
#____________________________________________________________________

#arithmetic
#      h-5 ---> $t0 - $s1 , store in temp variable

add 	$t3,$t1,$s1

li	$v0,1
move 	$a0,$t3
syscall

li	$v0, 4
la 	$a0, new_line
syscall

# 	g ($t0) + temp variable $t3 and store in f ($s0)
add 	$s0,$t0,$t3

li	$v0,1
move 	$a0,$s0
syscall

######################################################################
#exit gracefully
li	$v0, 10		#system call code for exit is "10"
syscall			#bye bye