2 files changed, 29 insertions, 0 deletions
diff --git a/tb/sim/hazards.S b/tb/sim/hazards.S
new file mode 100644
index 0000000..3e6213a
--- /dev/null
+++ b/tb/sim/hazards.S
@@ -0,0 +1,20 @@
+.global reset
+
+reset:
+    mov r5, #3
+    mov r7, #6
+    mov r9, #9
+    mov sp, #256
+    str r5, [sp, #-4]
+    mov r0, #69
+    mov r1, #-10
+
+	.loop1:
+    tst r1, r1
+    beq .loop2
+    add r1, r1, #1
+    sub r0, r0, #1
+    b   .loop1
+
+	.loop2:
+    b   .loop2
diff --git a/tb/sim/hazards.py b/tb/sim/hazards.py
new file mode 100644
index 0000000..9fa3e44
--- /dev/null
+++ b/tb/sim/hazards.py
@@ -0,0 +1,9 @@
+SP = 256
+
+mem_dumps = [range(SP - 4, SP)]
+
+def final():
+    assert_reg(r0, 59)
+    assert_reg(r1, 0)
+    assert_reg(sp, SP)
+    assert_mem(SP - 4, 3)