From cf81293d79cf3a5cfbcdb55eb6368bbcb5f06fd7 Mon Sep 17 00:00:00 2001
From: Test_User <hax@andrewyu.org>
Date: Thu, 16 Feb 2023 14:57:20 -0500
Subject: Finish adding basic arithmetic instructions

---
 cpu/instructions/arithmetic/signed_multiply.txt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 cpu/instructions/arithmetic/signed_multiply.txt

(limited to 'cpu/instructions/arithmetic/signed_multiply.txt')

diff --git a/cpu/instructions/arithmetic/signed_multiply.txt b/cpu/instructions/arithmetic/signed_multiply.txt
new file mode 100644
index 0000000..8f5a8ac
--- /dev/null
+++ b/cpu/instructions/arithmetic/signed_multiply.txt
@@ -0,0 +1,14 @@
+Number of parameters: 4
+
+Usage:
+	signed_multiply <overflow> <result> <value0> <value1>
+
+Effect:
+	Performs the signed multiplication <value0>*<value1>, storing the integer result in <result> and any overflowing bits into <overflow>
+
+Exceptions:
+	None
+
+Flags:
+	Sets the overflow flag if <overflow>:<result> != <result>
+	Carry flag is never set
-- 
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