From 56de2512aed974cf782a7c21972400ff0b2a77b4 Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Wed, 25 Nov 2020 23:34:30 -0500
Subject: [PATCH] Adds a further safety assert.

---
 Machines/Apple/AppleIIgs/MemoryMap.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Machines/Apple/AppleIIgs/MemoryMap.hpp b/Machines/Apple/AppleIIgs/MemoryMap.hpp
index 4d8dda0f8..e47441032 100644
--- a/Machines/Apple/AppleIIgs/MemoryMap.hpp
+++ b/Machines/Apple/AppleIIgs/MemoryMap.hpp
@@ -359,6 +359,7 @@ class MemoryMap {
 			// Affects bank $00 only, and should be a single region.
 			auto &region = regions[region_map[0]];
 			region.read = region.write = auxiliary_switches_.zero_state() ? &ram_base[0x10000] : ram_base;
+			assert(region_map[0x0000]+1 == region_map[0x0002]);
 
 			// Switching to or from auxiliary RAM potentially affects the language
 			// and regular card areas.