From 4cdfca337506b43749f0ab15ae8e7d8237395fe2 Mon Sep 17 00:00:00 2001
From: Bryan <74067792+Bryan-Roe@users.noreply.github.com>
Date: Sat, 11 Jul 2026 00:13:24 -0700
Subject: [PATCH] Potential fix for code scanning alert no. 2257:
 Multiplication result converted to larger type

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
---
 pxt_modules/screen/image.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pxt_modules/screen/image.cpp b/pxt_modules/screen/image.cpp
index 1fb7b8b54..ec47f1dc6 100644
--- a/pxt_modules/screen/image.cpp
+++ b/pxt_modules/screen/image.cpp
@@ -502,7 +502,7 @@ void scroll(Image_ img, int dx, int dy) {
   } else if (dx < 0) {
     dx = -dx;
     if (dx < w)
-      memmove(img->pix(), img->pix(dx, 0), (w - dx) * bh);
+      memmove(img->pix(), img->pix(dx, 0), static_cast<size_t>(w - dx) * static_cast<size_t>(bh));
     else
       dx = w;
     memset(img->pix(w - dx, 0), 0, dx * bh);