From 52b905eb14779e8acec423a1701d78bb2c7fe275 Mon Sep 17 00:00:00 2001
From: ElectronixTM <etdiary1@gmail.com>
Date: Sat, 29 Mar 2025 22:24:30 +0300
Subject: [PATCH] =?UTF-8?q?feat:=20=D0=B4=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB?=
 =?UTF-8?q?=D0=B5=D0=BD=D0=BE=20=D0=B2=D1=8B=D0=B1=D1=80=D0=B0=D1=81=D1=8B?=
 =?UTF-8?q?=D0=B2=D0=B0=D0=BD=D0=B8=D0=B5=20=D0=B8=D1=81=D0=BA=D0=BB=D1=8E?=
 =?UTF-8?q?=D1=87=D0=B5=D0=BD=D0=B8=D0=B9=20=D0=B2=20=D0=BD=D0=B5=D0=BA?=
 =?UTF-8?q?=D0=BE=D1=82=D0=BE=D1=80=D1=8B=D0=B5=20=D0=BC=D0=B5=D1=81=D1=82?=
 =?UTF-8?q?=D0=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

так странно написано потому что я уверен, что будут еще другие исключительные случаи и корнеркейсы, которые я забыл
---
 src/vm.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/vm.py b/src/vm.py
index 88b62a0..5569eb1 100644
--- a/src/vm.py
+++ b/src/vm.py
@@ -119,6 +119,11 @@ class VM:
         """
         Make one step (only step into)
         """
+        if self.pc.value * 4 > len(self.mem) - 4:
+            raise VMException(
+                    VMExceptionType.END_OF_MEM,
+                    self.pc.value
+                    )
         opcode = self.mem[self.pc.value * 4]
         opdesc = self._fetch_opcode_desc(opcode)
         args = self._parse_arguments(opdesc)
@@ -148,6 +153,11 @@ class VM:
             self.continue_()
 
     def _fetch_opcode_desc(self, opcode: int):
+        if not opcode in OPCODES:
+            raise VMException(
+                    VMExceptionType.INVALID_OPCODE,
+                    self.pc.value
+                    )
         return OPCODES[opcode]
     
     def _parse_arguments(self, opdesc: OpcodeDescription) -> tuple[int, ...]: