InitHEADmain

1 files changed, 64 insertions, 0 deletions

diff --git a/Homework/cs5300/hw-MIPS/code/array.asm b/Homework/cs5300/hw-MIPS/code/array.asm
new file mode 100644
index 0000000..f802ec6
--- /dev/null
+++ b/Homework/cs5300/hw-MIPS/code/array.asm
@@ -0,0 +1,64 @@
+.text
+
+.globl	main
+
+main:
+	subi $sp, $sp, 4
+	sw $ra, 0($sp) # Put return address on the bottom of the stack
+	
+	subi $sp, $sp, 12 # 3 elements on the stack
+	la $t0, 0($sp) # Part of the dope vector - address of the array
+	li $t1, 3 # Might as well put the array length here too
+	li $s0, 1 # Put in registers...
+	li $s1, 3
+	li $s2, 5
+	sw $s0, 0($sp) # Push on stack...
+	sw $s1, 4($sp)
+	sw $s2, 8($sp)
+	
+	subi $sp, $sp, 8 # Dope vector two words: <address> <length>
+	sw $t0, 0($sp)
+	sw $t1, 4($sp)
+	
+	jal fee
+	
+	lw $a0, 0($sp)
+	addi $sp, $sp, 4
+	
+	li $v0, 1
+	syscall
+	
+	li $v0, 10
+	syscall
+
+fee: 
+	li $t0, 0 # i
+	li $t1, 0 # sum
+	lw $t2, 4($sp) # n
+	lw $t3, 0($sp) # address
+	addi $sp, $sp, 16
+	
+	b loop
+
+loop:
+	li $t4, 4 # sizeof(int)
+	
+	mult $t0, $t4
+	mflo $t6
+	add $t5, $t3, $t6
+	lw $t7, ($t5) # element = address + i * 4
+	
+	add $t1, $t1, $t7 # sum = sum + element
+	addi $t0, $t0, 1 # i = i + 1
+	
+	bne $t0, $t2, loop
+	
+	# return sum
+	subi $sp, $sp, 4
+	sw $t1, 0($sp)
+	
+	jr $ra
+
+# Start .data segment (data!)
+.data
+