diff --git a/inputs/mthi/mthi-2.data.txt b/inputs/mthi/mthi-2.data.txt
new file mode 100644
index 0000000..c4352e6
--- /dev/null
+++ b/inputs/mthi/mthi-2.data.txt
@@ -0,0 +1,4 @@
+00000000
+00000000
+00000000
+10000000
\ No newline at end of file
diff --git a/inputs/mthi/mthi-2.instr.txt b/inputs/mthi/mthi-2.instr.txt
new file mode 100644
index 0000000..c54de4f
--- /dev/null
+++ b/inputs/mthi/mthi-2.instr.txt
@@ -0,0 +1,5 @@
+3404100A
+8C840002
+00800011
+00001010
+00000008
\ No newline at end of file
diff --git a/inputs/mthi/mthi-2.ref.txt b/inputs/mthi/mthi-2.ref.txt
new file mode 100644
index 0000000..528d5c0
--- /dev/null
+++ b/inputs/mthi/mthi-2.ref.txt
@@ -0,0 +1 @@
+268435456
\ No newline at end of file
diff --git a/inputs/mtlo/mtlo-2.data.txt b/inputs/mtlo/mtlo-2.data.txt
new file mode 100644
index 0000000..3564c8b
--- /dev/null
+++ b/inputs/mtlo/mtlo-2.data.txt
@@ -0,0 +1,4 @@
+00000000
+00000000
+00000000
+10101100
\ No newline at end of file
diff --git a/inputs/mtlo/mtlo-2.instr.txt b/inputs/mtlo/mtlo-2.instr.txt
new file mode 100644
index 0000000..9344b35
--- /dev/null
+++ b/inputs/mtlo/mtlo-2.instr.txt
@@ -0,0 +1,5 @@
+3404100A
+8C840002
+00800013
+00001012
+00000008
\ No newline at end of file
diff --git a/inputs/mtlo/mtlo-2.ref.txt b/inputs/mtlo/mtlo-2.ref.txt
new file mode 100644
index 0000000..f61be37
--- /dev/null
+++ b/inputs/mtlo/mtlo-2.ref.txt
@@ -0,0 +1 @@
+269488384
\ No newline at end of file
diff --git a/inputs/mult/mult-1.instr.txt b/inputs/mult/mult-1.instr.txt
index a22f6bf..86f65a6 100644
--- a/inputs/mult/mult-1.instr.txt
+++ b/inputs/mult/mult-1.instr.txt
@@ -2,5 +2,4 @@
 34050003
 00850018
 00001012
-00000000
 00000008
\ No newline at end of file
diff --git a/inputs/mult/mult-2.data.txt b/inputs/mult/mult-2.data.txt
new file mode 100644
index 0000000..4eb253e
--- /dev/null
+++ b/inputs/mult/mult-2.data.txt
@@ -0,0 +1,4 @@
+00000000
+FFFFFFFF
+00000000
+00010000
\ No newline at end of file
diff --git a/inputs/mult/mult-2.instr.txt b/inputs/mult/mult-2.instr.txt
new file mode 100644
index 0000000..ec6bcd2
--- /dev/null
+++ b/inputs/mult/mult-2.instr.txt
@@ -0,0 +1,9 @@
+3404100A
+8C840002
+34051002
+8CA50002
+00850018
+00002812
+00002010
+00000008
+00851021
\ No newline at end of file
diff --git a/inputs/mult/mult-2.ref.txt b/inputs/mult/mult-2.ref.txt
new file mode 100644
index 0000000..f20e1da
--- /dev/null
+++ b/inputs/mult/mult-2.ref.txt
@@ -0,0 +1 @@
+4294901759
\ No newline at end of file
diff --git a/inputs/mult/mult-3.instr.txt b/inputs/mult/mult-3.instr.txt
new file mode 100644
index 0000000..8683dcf
--- /dev/null
+++ b/inputs/mult/mult-3.instr.txt
@@ -0,0 +1,7 @@
+3404A000
+00840018
+00001012
+00002812
+00002010
+00000008
+00851021
\ No newline at end of file
diff --git a/inputs/mult/mult-3.ref.txt b/inputs/mult/mult-3.ref.txt
new file mode 100644
index 0000000..7cb8857
--- /dev/null
+++ b/inputs/mult/mult-3.ref.txt
@@ -0,0 +1 @@
+1677721600
\ No newline at end of file
diff --git a/inputs/mult/mult-4.instr.txt b/inputs/mult/mult-4.instr.txt
new file mode 100644
index 0000000..7014e62
--- /dev/null
+++ b/inputs/mult/mult-4.instr.txt
@@ -0,0 +1,7 @@
+3C04FFFF
+3484A000
+00840018
+00002812
+00002010
+00000008
+00851021
\ No newline at end of file
diff --git a/inputs/mult/mult-4.ref.txt b/inputs/mult/mult-4.ref.txt
new file mode 100644
index 0000000..da7ee25
--- /dev/null
+++ b/inputs/mult/mult-4.ref.txt
@@ -0,0 +1 @@
+603979776
\ No newline at end of file
diff --git a/inputs/mult/mult-5.instr.txt b/inputs/mult/mult-5.instr.txt
new file mode 100644
index 0000000..4327d38
--- /dev/null
+++ b/inputs/mult/mult-5.instr.txt
@@ -0,0 +1,5 @@
+3C05A000
+34040001
+00850018
+00001010
+00000008
\ No newline at end of file
diff --git a/inputs/mult/mult-5.ref.txt b/inputs/mult/mult-5.ref.txt
new file mode 100644
index 0000000..b7bf491
--- /dev/null
+++ b/inputs/mult/mult-5.ref.txt
@@ -0,0 +1 @@
+4294967295
\ No newline at end of file
diff --git a/inputs/multu/multu-2.instr.txt b/inputs/multu/multu-2.instr.txt
new file mode 100644
index 0000000..263650b
--- /dev/null
+++ b/inputs/multu/multu-2.instr.txt
@@ -0,0 +1,7 @@
+3C04FFFF
+3484A000
+00840019
+00002812
+00001010
+00000008
+00451021
\ No newline at end of file
diff --git a/inputs/multu/multu-2.ref.txt b/inputs/multu/multu-2.ref.txt
new file mode 100644
index 0000000..e6d9424
--- /dev/null
+++ b/inputs/multu/multu-2.ref.txt
@@ -0,0 +1 @@
+603930624
\ No newline at end of file
diff --git a/inputs/or/or-3.data.txt b/inputs/or/or-3.data.txt
index 50de8d2..f6d056e 100644
--- a/inputs/or/or-3.data.txt
+++ b/inputs/or/or-3.data.txt
@@ -1,4 +1,4 @@
 00000000
 12345678
-00000000
+0000F0A0
 00000000
\ No newline at end of file
diff --git a/inputs/or/or-3.instr.txt b/inputs/or/or-3.instr.txt
index 5bd5037..d3ae17e 100644
--- a/inputs/or/or-3.instr.txt
+++ b/inputs/or/or-3.instr.txt
@@ -1,5 +1,6 @@
 34041002
 8C820002
-3404F0A0
+34051006
+8CA40002
 00000008
 00441025
\ No newline at end of file
diff --git a/rtl/mips_cpu_alu.v b/rtl/mips_cpu_alu.v
index 132b5e6..d8db0f0 100644
--- a/rtl/mips_cpu_alu.v
+++ b/rtl/mips_cpu_alu.v
@@ -112,8 +112,8 @@ end
 
       MUL: begin
           SMulRes = $signed(A) * $signed(B);
-          temp_Hi   = SMulRes[63:32];
-          temp_Lo   = SMulRes[31:0];
+          temp_Hi = SMulRes[63:32];
+          temp_Lo = SMulRes[31:0];
       end
 
       DIV: begin
@@ -241,8 +241,8 @@ end
 
       MULU: begin
           UMulRes = A * B;
-          temp_Hi   = UMulRes[63:32];
-          temp_Lo   = UMulRes[31:0];
+          temp_Hi = UMulRes[63:32];
+          temp_Lo = UMulRes[31:0];
       end
 
       DIVU: begin