From bfcb373ade5f490cb4c5aa47d222eb7fb3d033ec Mon Sep 17 00:00:00 2001
From: Graham <gpe@openrs2.dev>
Date: Sat, 29 Feb 2020 22:04:21 +0000
Subject: [PATCH] Add ClassVersionUtils

---
 .../java/dev/openrs2/asm/ClassVersionUtils.kt     | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 asm/src/main/java/dev/openrs2/asm/ClassVersionUtils.kt

diff --git a/asm/src/main/java/dev/openrs2/asm/ClassVersionUtils.kt b/asm/src/main/java/dev/openrs2/asm/ClassVersionUtils.kt
new file mode 100644
index 00000000..76d4c379
--- /dev/null
+++ b/asm/src/main/java/dev/openrs2/asm/ClassVersionUtils.kt
@@ -0,0 +1,15 @@
+package dev.openrs2.asm
+
+object ClassVersionUtils {
+    private fun swapWords(v: Int): Int {
+        return (v shl 16) or (v ushr 16)
+    }
+
+    fun maxVersion(v1: Int, v2: Int): Int {
+        return if (swapWords(v1) > swapWords(v2)) {
+            v1
+        } else {
+            v2
+        }
+    }
+}