added files

1 files changed, 28 insertions, 0 deletions

diff --git a/lab7bonus_fig2.s b/lab7bonus_fig2.s
new file mode 100644
index 0000000..35fcc69
--- /dev/null
+++ b/lab7bonus_fig2.s
@@ -0,0 +1,28 @@
+    MOV R0,N         // R0 = address of variable N
+    LDR R0,[R0]      // R0 = 4
+    MOV R1,#0        // R1 = 0; R1 is "i"
+    MOV R2,#0        // R2 = 0; R2 is "sum"
+    MOV R3,amount    // R3 = base address of array "amount"
+    MOV R4,#1        // R4 = 1
+
+LOOP:                // for(i=0; i<N; i++) sum = sum + amount[i]; 
+    ADD R5,R3,R1     // R5 = address of amount[i]
+    LDR R5,[R5]      // R5 = amount[i]
+    ADD R2,R2,R5     // sum = sum + amount[i]
+    ADD R1,R1,R4     // i++
+    CMP R1,R0
+    BLT LOOP         // if i < N goto LOOP
+
+    MOV R3,result
+    STR R2,[R3]      // result = sum
+    HALT
+
+N:
+    .word 4
+amount:
+    .word 50
+    .word 200
+    .word 100
+    .word 500
+result:
+    .word 0xBADD