diff --git a/seminaries/qtmips/hazards-from-lecture/alu-hazards.S b/seminaries/qtmips/hazards-from-lecture/alu-hazards.S
new file mode 100644
index 0000000000000000000000000000000000000000..907d50991dd9959d245d93b6f2fd5bd457b5eb70
--- /dev/null
+++ b/seminaries/qtmips/hazards-from-lecture/alu-hazards.S
@@ -0,0 +1,10 @@
+	li   $s1, 0x11111111
+	li   $s2, 0x22222222
+	li   $s3, 0x33333333
+	li   $s4, 0x44444444
+	li   $s5, 0x55555555
+
+	add  $s0, $s2, $s3
+	and  $t0, $s0, $s1
+	or   $t1, $s4, $s0
+	sub  $t2, $s0, $s5
diff --git a/seminaries/qtmips/hazards-from-lecture/beq-hazards.S b/seminaries/qtmips/hazards-from-lecture/beq-hazards.S
new file mode 100644
index 0000000000000000000000000000000000000000..a951d8e337e0acc4870bcd0a2d4238343d9c4a2e
--- /dev/null
+++ b/seminaries/qtmips/hazards-from-lecture/beq-hazards.S
@@ -0,0 +1,15 @@
+	li   $s1, 0x11111111
+	li   $s2, 0x22222222
+	li   $s3, 0x33333333
+	li   $s4, 0x44444444
+	li   $s5, 0x55555555
+	addi $t1, $0, 0x1234
+	addi $t2, $0, 0x1234
+
+	beq  $t1, $t2, skip
+	and  $t0, $s0, $s1
+	or   $t1, $s4, $s0
+	sub  $t2, $s0, $s5
+
+skip:
+	slt  $t3, $s2, $s3
diff --git a/seminaries/qtmips/hazards-from-lecture/lw-hazards.S b/seminaries/qtmips/hazards-from-lecture/lw-hazards.S
new file mode 100644
index 0000000000000000000000000000000000000000..6790be573267f032956deb6fd880880dc5c9269c
--- /dev/null
+++ b/seminaries/qtmips/hazards-from-lecture/lw-hazards.S
@@ -0,0 +1,13 @@
+	li   $s1, 0x11111111
+	li   $s2, 0x22222222
+	li   $s3, 0x33333333
+	li   $s4, 0x44444444
+	li   $s5, 0x55555555
+
+	lw   $s0, 40($0)
+	and  $t0, $s0, $s1
+	or   $t1, $s4, $s0
+	sub  $t2, $s0, $s5
+
+.org 40
+	.word 0x12345678