--- nono/vm/bus.h	2026/04/29 17:04:35	1.1.1.3
+++ nono/vm/bus.h	2026/04/29 17:05:10	1.1.1.5
@@ -4,6 +4,10 @@
 // Licensed under nono-license.txt
 //
 
+//
+// 物理バスアクセス?
+//
+
 #pragma once
 
 #include "device.h"
@@ -28,3 +32,4 @@ static inline uint64 vm_phys_peek_32(uin
 }
 
 extern IODevice *devtable[256];
+extern int direct_ram_size;