From cd95011e7be34dc7e5c6282e03731a1f6ee8ffd2 Mon Sep 17 00:00:00 2001
From: Alek Ratzloff <alekratz@gmail.com>
Date: Wed, 26 Feb 2020 10:19:26 -0500
Subject: [PATCH] Add function call test

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>
---
 tests/call.asm | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 tests/call.asm

diff --git a/tests/call.asm b/tests/call.asm
new file mode 100644
index 0000000..2855513
--- /dev/null
+++ b/tests/call.asm
@@ -0,0 +1,36 @@
+.section data $0x1000 {
+    factorial:
+        cmplt %r0, $2
+        jnz factorial_one
+
+        push %r0
+        sub %r0, $1
+        call factorial
+        pop %r0
+        mul %status, %r0
+        jmp factorial_end
+
+    factorial_one:
+        mov %status, $1
+    factorial_end:
+        ret
+
+    main:
+        mov %r0, $6
+        call factorial
+        cmpeq %status, $720
+        jz fail
+        mov %status, $0
+        jmp end
+    fail:
+        mov %status, $1
+    end:
+        halt
+
+    .export main
+}
+
+.meta {
+    entry: main
+}
+