--- nono/vm/cgrom.h	2026/04/29 17:04:28	1.1.1.1
+++ nono/vm/cgrom.h	2026/04/29 17:04:35	1.1.1.2
@@ -1,10 +1,43 @@
 //
 // nono
-// Copyright (C) 2018 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #pragma once
 
 #include "header.h"
 
-extern uint8 builtin_cgrom[];
+// 内蔵 CGROM データへのポインタ
+class BuiltinCGROM
+{
+ public:
+	static const uint8 * Get8x8(uint ch = 0) {
+		return &data[0x3a000 + ch * 8];
+	}
+	static const uint8 * Get12x12(uint ch = 0) {
+		return &data[0x3b800 + ch * 24];
+	}
+
+	// 1バイト半角文字
+	static const uint8 * Get6x12(uint ch = 0) {
+		return &data[0xbf400 + ch * 12];
+	}
+	static const uint8 * Get8x16(uint ch = 0) {
+		return &data[0x3a800 + ch * 16];
+	}
+	static const uint8 * Get12x24(uint ch = 0) {
+		return &data[0x3d000 + ch * 48];
+	}
+
+	// 2バイト全角文字
+	static const uint8 * Get16x16(uint ch = 0) {
+		return &data[0x00000 + ch * 32];
+	}
+	static const uint8 * Get24x24(uint ch = 0) {
+		return &data[0x40000 + ch * 72];
+	}
+
+ private:
+	static uint8 const data[];
+};