--- nono/vm/printer.cpp	2026/04/29 17:04:28	1.1
+++ nono/vm/printer.cpp	2026/04/29 17:04:55	1.1.1.5
@@ -1,14 +1,17 @@
 //
 // nono
-// Copyright (C) 2017 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
 #include "printer.h"
+#include "mpu.h"
+
+std::unique_ptr<PrinterDevice> gPrinter;
 
 PrinterDevice::PrinterDevice()
+	: inherited("Printer")
 {
-	logname = "printer";
-	devname = "Printer";
 	devaddr = baseaddr;
 	devlen  = 0x2000;
 }
@@ -21,6 +24,7 @@ uint64
 PrinterDevice::Read8(uint32 addr)
 {
 	// 書き込み専用
+	gMPU->AddCycle(7);	// InsideOut p.135
 	return (uint64)-1;
 }
 
@@ -28,12 +32,15 @@ uint64
 PrinterDevice::Read16(uint32 addr)
 {
 	// 書き込み専用
+	gMPU->AddCycle(7);	// InsideOut p.135
 	return (uint64)-1;
 }
 
 uint64
 PrinterDevice::Write8(uint32 addr, uint32 data)
 {
+	gMPU->AddCycle(7);	// InsideOut p.135
+
 	uint32 offset = addr - baseaddr;
 	switch (offset) {
 	 case 0: