InitHEADmain

1 files changed, 44 insertions, 0 deletions

diff --git a/Homework/cs5300/hw-MIPS/code/fee.asm b/Homework/cs5300/hw-MIPS/code/fee.asm
new file mode 100644
index 0000000..c38b5d6
--- /dev/null
+++ b/Homework/cs5300/hw-MIPS/code/fee.asm
@@ -0,0 +1,44 @@
+.text
+
+.globl	main
+main:
+        # put 3 and 4 on the stack using the register $sp
+	subi $sp, $sp, 8
+	li $s0, 3
+	li $s1, 4
+	
+	sw $s0, 0($sp)
+	sw $s1, 4($sp)
+
+        # call fee. You'll probably want to use the jal instruction to
+        # store the current address in $ra
+        
+        jal fee
+
+	# load results from stack to registers
+ 	lw $a0, 0($sp)
+ 	addi $sp, $sp, 4
+	# print result
+	li $v0, 1
+	syscall
+	
+        # exit
+	li $v0, 10
+	syscall
+fee:
+        # copy a and b from stack to local registers
+	lw $s1, 4($sp)
+	lw $s0, 0($sp)
+
+	# add a and b
+	add $t0, $s1, $s0
+	
+        # place result on stack
+        addi $sp, $sp, 4 # No need to keep $sp allocated for two words when we're just returning a result
+        sw $t0, 0($sp) 
+        
+        # return using jr instruction
+        jr $ra
+	
+# Start .data segment (data!)
+.data