From 0315df659787152155a3265a3ea8c544dfd37757 Mon Sep 17 00:00:00 2001
From: Hugo Villeneuve <hugo@hugovil.com>
Date: Sun, 24 Nov 2013 23:14:46 -0500
Subject: [PATCH] Add tests for DIV instruction

---
 tests/Makefile.am |  3 ++-
 tests/div.asm     | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 tests/div.asm

diff --git a/tests/Makefile.am b/tests/Makefile.am
index eef5997..1c8547f 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -7,10 +7,11 @@ SUFFIXES = .hex .asm
 TESTS = \
     opcodes
 
-check_PROGRAMS = mul1.hex mul2.hex orl.hex anl.hex
+check_PROGRAMS = mul1.hex mul2.hex div.hex orl.hex anl.hex
 
 mul1.hex: mul1.asm
 mul2.hex: mul2.asm
+div.hex: div.asm
 orl.hex: orl.asm
 anl.hex: anl.asm
 
diff --git a/tests/div.asm b/tests/div.asm
new file mode 100644
index 0000000..116c3e2
--- /dev/null
+++ b/tests/div.asm
@@ -0,0 +1,22 @@
+; Test program to verify correct emu8051 operation
+;
+; Test desc: DIV AB
+; Test output1: A = $3C
+; Test output2: B = $00
+; Test output3: PSW = $00
+
+        CSEG
+
+        ORG     0000h           ; Reset vector
+
+        MOV     A, #0FFh
+        MOV     B, #00h
+        DIV     AB              ; CY should be cleared, OV should be set
+                                ; PSW = $04
+
+        MOV     A, #240         ; 240d
+        MOV     B, PSW          ; 4d
+        DIV     AB              ; CY should be cleared, OV should be cleared, result = 10
+
+        LJMP    0FFF0h
+        END
-- 
2.20.1