From da6df10dd0ede928c6f52a477b3822b5d1d390a6 Mon Sep 17 00:00:00 2001
From: Sirin Puenggun <sirin_29@hotmail.co.th>
Date: Mon, 4 Mar 2024 10:54:55 +0700
Subject: [PATCH] Add dot_product.s

---
 dot_product.s | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 dot_product.s

diff --git a/dot_product.s b/dot_product.s
new file mode 100644
index 0000000..c840d29
--- /dev/null
+++ b/dot_product.s
@@ -0,0 +1,55 @@
+.data
+# int a[5] = {1, 2, 3, 4, 5};
+# int b[5] = {6, 7, 8, 9, 10};
+a: .word 1, 2, 3, 4, 5
+b: .word 6, 7, 8, 9, 10
+print_text: .asciiz "The dot product is: "
+
+# int main() {
+#     int i, sop = 0;
+    
+#     for (i = 0; i < 5; i++) {
+#         sop += a[i] * b[i];
+#     }
+    
+#     printf("The dot product is: %d\n", sop);
+#     return 0;
+# }
+
+.text
+main:
+    add t0 zero zero # i = 0
+    add s0 zero zero # sop = 0
+
+loop:
+    addi t2 zero 5
+    bge t0 t2 print # if i >= 5 then exit loop
+    slli t1 t0 2 # t1 = i*4
+    
+    la t3 a # &a[i]
+    add t3 t3 t1 # get a[i] address
+    lw t4 0(t3) # a[i]
+    
+    la t3 b # &b[i]
+    add t3 t3 t1 # get b[i] address
+    lw t5 0(t3) # b[i]
+    
+    mul t6 t4 t5 # a[i] * b[i]
+    add s0 s0 t6 # sop += a[i] * b[i]
+    addi t0 t0 1 # i++
+    j loop 
+
+print:
+    # print text
+    addi a0 zero 4
+    la a1 print_text
+    ecall
+
+    # print sop
+    addi a0 zero 1
+    mv a1 s0
+    ecall
+    
+    addi a0 zero 10
+    ecall
+