From 9900735b7bf0632df758742cffbe284e704d092a Mon Sep 17 00:00:00 2001
From: Denis Drakhnia <numas13@gmail.com>
Date: Wed, 3 Jan 2024 13:05:37 +0200
Subject: [PATCH] e2k: gen excp if mova access size is greater than fmt

---
 target/e2k/helper_aau.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/e2k/helper_aau.c b/target/e2k/helper_aau.c
index 5e3427e5ee..3aec9acf6d 100644
--- a/target/e2k/helper_aau.c
+++ b/target/e2k/helper_aau.c
@@ -56,6 +56,10 @@ target_ulong HELPER(mova_ptr)(CPUE2KState *env, int chan, int area, int ind,
     target_ulong addr = aad.base + as->cdi + instr.disp + ind;
     target_ulong page = addr & TARGET_PAGE_MASK;
 
+    if ((1 << instr.fmt) <= size) {
+        helper_raise_exception(env, E2K_EXCP_ILLEGAL_OPCODE);
+    }
+
     if (addr & (size - 1)) {
         return 0;
     } else if (page != as->last_page) {