--- nono/vm/device.cpp	2026/04/29 17:04:32	1.1.1.2
+++ nono/vm/device.cpp	2026/04/29 17:05:38	1.1.1.12
@@ -1,22 +1,25 @@
 //
 // nono
-// Copyright (C) 2017 isaki@NetBSD.org
+// Copyright (C) 2020 nono project
+// Licensed under nono-license.txt
 //
 
-#include "device.h"
-#include "vm.h"
+//
+// デバイスの基本クラスなど
+//
 
-// 全デバイスリスト
-std::vector<Device *> gDevices;
+#include "device.h"
+#include "mpu.h"
+#include "scheduler.h"
 
 //
 // Device
 //
 
 // コンストラクタ
-Device::Device()
+Device::Device(uint objid_)
+	: inherited(objid_)
 {
-	gDevices.push_back(this);
 }
 
 // デストラクタ
@@ -31,51 +34,75 @@ Device::Create()
 }
 
 bool
-Device::Init()
+Device::Create2()
 {
 	return true;
 }
 
-bool
-Device::Apply()
+void
+Device::EarlyInit()
 {
-	return true;
+	mpu = GetMPUDevice();
+	scheduler = GetScheduler();
 }
 
 bool
-Device::PowerOn()
+Device::Init()
 {
 	return true;
 }
 
 bool
-Device::PowerOff()
+Device::Apply()
 {
 	return true;
 }
 
-// 本体リセットスイッチによるリセット
 void
-Device::ResetHard()
+Device::ResetHard(bool poweron)
 {
 }
 
-// MPU の RESET 命令によるリセット
 void
-Device::ResetSoft()
+Device::PowerOff()
 {
 }
 
+// ログ表示。
+// VM デバイスでは、仮想時間、PC、オブジェクト名を表示する。
+void
+Device::putlogn(const char *fmt, ...) const
+{
+	char buf[1024];
+	va_list ap;
+	uint64 vt;
+	int len;
+
+	vt = scheduler->GetVirtTime();
+	len = snprintf(buf, sizeof(buf), "%4u.%03u'%03u'%03u %08x %s ",
+		(uint)(vt / 1000 / 1000 / 1000),
+		(uint)((vt / 1000 / 1000) % 1000),
+		(uint)((vt / 1000) % 1000),
+		(uint)(vt % 1000),
+		mpu->GetPPC(),
+		GetName().c_str());
+
+	va_start(ap, fmt);
+	vsnprintf(buf + len, sizeof(buf) - len, fmt, ap);
+	va_end(ap);
+
+	WriteLog(buf);
+}
+
 
 //
 // IODevice
 //
 
 // コンストラクタ
-IODevice::IODevice()
+IODevice::IODevice(uint objid_)
+	: inherited(objid_)
 {
-	devaddr = 0;
-	devlen  = 0;
 }
 
 // デストラクタ
@@ -83,64 +110,54 @@ IODevice::~IODevice()
 {
 }
 
-uint64
-IODevice::Read8(uint32 addr)
+busdata
+IODevice::Read(busaddr addr)
 {
-	return 0xff;
+	return 0;
 }
 
-uint64
-IODevice::Read16(uint32 addr)
+busdata
+IODevice::Write(busaddr addr, uint32 data)
 {
-	return (Read8(addr) << 8) | Read8(addr + 1);
+	return 0;
 }
 
-uint64
-IODevice::Read32(uint32 addr)
+busdata
+IODevice::ReadBurst16(busaddr addr, uint32 *dst)
 {
-	return (Read16(addr) << 16) | Read16(addr + 2);
+	return BusData::BusErr;
 }
 
-uint64
-IODevice::Write8(uint32 addr, uint32 data)
+busdata
+IODevice::WriteBurst16(busaddr addr, const uint32 *src)
 {
-	return 0;
+	return BusData::BusErr;
 }
 
-uint64
-IODevice::Write16(uint32 addr, uint32 data)
+busdata
+IODevice::Read1(uint32 addr)
 {
-	int64 berr;
-
-	berr = Write8(addr, data >> 8);
-	if (berr < 0)
-		return berr;
-	berr = Write8(addr + 1, data & 0xff);
-	if (berr < 0)
-		return berr;
-	return 0;
+	return 0xff;
 }
 
-uint64
-IODevice::Write32(uint32 addr, uint32 data)
+busdata
+IODevice::Write1(uint32 addr, uint32 data)
 {
-	int64 berr;
-
-	berr = Write16(addr, data >> 16);
-	if (berr < 0)
-		return berr;
-	berr = Write16(addr + 2, data & 0xffff);
-	if (berr < 0)
-		return berr;
 	return 0;
 }
 
-uint64
-IODevice::Peek8(uint32 addr)
+busdata
+IODevice::Peek1(uint32 addr)
 {
 	return 0xff;
 }
 
+bool
+IODevice::Poke1(uint32 addr, uint32 data)
+{
+	return false;
+}
+
 
 //
 // バスエラー
@@ -148,55 +165,43 @@ IODevice::Peek8(uint32 addr)
 
 // コンストラクタ
 BusErrDevice::BusErrDevice()
+	: inherited(OBJ_BUSERR)
 {
-	devname = "(BusErr)";
-	devaddr = -1;	// XXX どうしたもんか
+	ClearAlias();
+	AddAlias("BusErr");
 }
 
+// デストラクタ
 BusErrDevice::~BusErrDevice()
 {
 }
 
-uint64
-BusErrDevice::Read8(uint32 addr)
+busdata
+BusErrDevice::Read(busaddr addr)
 {
-	return (uint64)-1;
-}
+	uint32 datasize = addr.GetSize();
 
-uint64
-BusErrDevice::Read16(uint32 addr)
-{
-	return (uint64)-1;
+	putlog(1, "$%08x.%u", addr.Addr(), datasize);
+	busdata data = BusData::BusErr;
+	data |= busdata::Size(datasize);
+	return data;
 }
 
-uint64
-BusErrDevice::Read32(uint32 addr)
+busdata
+BusErrDevice::Write(busaddr addr, uint32 data)
 {
-	return (uint64)-1;
-}
-
-uint64
-BusErrDevice::Write8(uint32 addr, uint32 data)
-{
-	return (uint64)-1;
-}
-
-uint64
-BusErrDevice::Write16(uint32 addr, uint32 data)
-{
-	return (uint64)-1;
-}
+	uint32 datasize = addr.GetSize();
 
-uint64
-BusErrDevice::Write32(uint32 addr, uint32 data)
-{
-	return (uint64)-1;
+	putlog(1, "$%08x.%u <- %0*X", addr.Addr(), datasize, datasize * 2, data);
+	busdata r = BusData::BusErr;
+	r |= busdata::Size(datasize);
+	return r;
 }
 
-uint64
-BusErrDevice::Peek8(uint32 addr)
+busdata
+BusErrDevice::Peek1(uint32 addr)
 {
-	return (uint64)-1;
+	return BusData::BusErr;
 }
 
 
@@ -205,29 +210,56 @@ BusErrDevice::Peek8(uint32 addr)
 //
 
 // コンストラクタ
-NullDevice::NullDevice()
+NopIODevice::NopIODevice()
+	: inherited(OBJ_NOPIO)
 {
-	devname = "(Null)";
+	ClearAlias();
+	AddAlias("NopIO");
 }
 
-NullDevice::~NullDevice()
+// デストラクタ
+NopIODevice::~NopIODevice()
 {
 }
 
-uint64
-NullDevice::Read8(uint32 addr)
+busdata
+NopIODevice::Read(busaddr addr)
 {
-	return 0xff;
+	uint32 datasize = addr.GetSize();
+
+	putlog(1, "$%08x.%u", addr.Addr(), datasize);
+	busdata data = (1ULL << (datasize * 8)) - 1;
+	data |= busdata::Size(datasize);
+	return data;
 }
 
-uint64
-NullDevice::Write8(uint32 addr, uint32 data)
+busdata
+NopIODevice::Write(busaddr addr, uint32 data)
 {
-	return 0;
+	uint32 datasize = addr.GetSize();
+
+	putlog(1, "$%08x.%u <- $%0*x", addr.Addr(), datasize, datasize * 2, data);
+	busdata r = busdata::Size(datasize);
+	return r;
 }
 
-uint64
-NullDevice::Peek8(uint32 addr)
+busdata
+NopIODevice::Peek1(uint32 addr)
 {
 	return 0xff;
 }
+
+busdata
+NopIODevice::Read1(uint32 addr)
+{
+	putlog(1, "XP $%05x", addr);
+	busdata data = 0xff;
+	return data;
+}
+
+busdata
+NopIODevice::Write1(uint32 addr, uint32 data)
+{
+	putlog(1, "XP $%05x <- $%02x", addr, data);
+	return 0;
+}