1 files changed, 11 insertions, 4 deletions
diff --git a/problem1.asm b/problem1.asm
index 882eec2..f27fd90 100644
--- a/problem1.asm
+++ b/problem1.asm
@@ -5,14 +5,21 @@
     mov R2, [R5]
     inc R5
     mov R3, [R5]
+    cmp R3, R4
+    je zero
     sub R1, R2
-    mov R2, 0x1
     mov R4, R1
+    mov R1, 0x0
+    mov R5, 0x1
+    cmp R3, R5
+    je done
 loop:
     add R1, R4
-    inc R2
-    cmp R2, R3
+    inc R4
+    cmp R4, R3
     jne loop
+zero:
+    mov R1, 0x0
+done:
     mov R2, 0x1E
     mov [R2], R1
-    halt