From db69c4edabf03c2d4bf5119d5b307bdd3a5c7cbe Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Wed, 13 Mar 2024 23:40:46 +0900
Subject: perf: optimize memory.init/table.init

---
 src/Execution/MemInst.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/Execution/MemInst.php')

diff --git a/src/Execution/MemInst.php b/src/Execution/MemInst.php
index ae3809d..20a0e29 100644
--- a/src/Execution/MemInst.php
+++ b/src/Execution/MemInst.php
@@ -29,6 +29,21 @@ final class MemInst
         return count($this->data) * self::PAGE_SIZE;
     }
 
+    /**
+     * @param list<int> $data
+     */
+    public function copyData(array $data, int $src, int $dst, int $len): void
+    {
+        assert(0 <= $len);
+        assert(0 <= $src);
+        assert(0 <= $dst);
+        assert($src + $len <= count($data));
+        assert($dst + $len <= $this->size());
+        for ($i = 0; $i < $len; $i++) {
+            $this->storeByte($dst + $i, $data[$src + $i]);
+        }
+    }
+
     /**
      * @return ?S32
      */
-- 
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