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1.1 root 1: //
2: // nono
1.1.1.3 root 3: // Copyright (C) 2020 nono project
4: // Licensed under nono-license.txt
1.1 root 5: //
6:
1.1.1.8 root 7: //
8: // デバイスの基本クラスなど
9: //
1.1 root 10:
1.1.1.8 root 11: #include "device.h"
12: #include "mpu.h"
13: #include "scheduler.h"
1.1 root 14:
15: //
16: // Device
17: //
18:
19: // コンストラクタ
1.1.1.11! root 20: Device::Device(uint objid_)
1.1.1.9 root 21: : inherited(objid_)
1.1 root 22: {
23: }
24:
25: // デストラクタ
26: Device::~Device()
27: {
28: }
29:
30: bool
31: Device::Create()
32: {
33: return true;
34: }
35:
36: bool
37: Device::Init()
38: {
1.1.1.9 root 39: mpu = GetMPUDevice();
40: scheduler = GetScheduler();
41:
1.1 root 42: return true;
43: }
44:
45: bool
46: Device::Apply()
47: {
48: return true;
49: }
50:
1.1.1.8 root 51: void
52: Device::ResetHard(bool poweron)
1.1 root 53: {
54: }
55:
1.1.1.8 root 56: void
1.1 root 57: Device::PowerOff()
58: {
59: }
60:
1.1.1.8 root 61: // ログ表示。
62: // VM デバイスでは、仮想時間、PC、オブジェクト名を表示する。
1.1 root 63: void
1.1.1.8 root 64: Device::putlogn(const char *fmt, ...) const
1.1 root 65: {
1.1.1.8 root 66: char buf[1024];
67: va_list ap;
68: uint64 vt;
69: int len;
70:
1.1.1.9 root 71: vt = scheduler->GetVirtTime();
1.1.1.11! root 72: len = snprintf(buf, sizeof(buf), "%4u.%03u'%03u'%03u %08x %s ",
! 73: (uint)(vt / 1000 / 1000 / 1000),
! 74: (uint)((vt / 1000 / 1000) % 1000),
! 75: (uint)((vt / 1000) % 1000),
! 76: (uint)(vt % 1000),
1.1.1.9 root 77: mpu->GetPPC(),
1.1.1.8 root 78: GetName().c_str());
79:
80: va_start(ap, fmt);
81: vsnprintf(buf + len, sizeof(buf) - len, fmt, ap);
82: va_end(ap);
83:
84: WriteLog(buf);
1.1 root 85: }
86:
87:
88: //
89: // IODevice
90: //
91:
92: // コンストラクタ
1.1.1.11! root 93: IODevice::IODevice(uint objid_)
1.1.1.9 root 94: : inherited(objid_)
1.1 root 95: {
96: }
97:
98: // デストラクタ
99: IODevice::~IODevice()
100: {
101: }
102:
1.1.1.9 root 103: // 初期化
104: bool
105: IODevice::Init()
106: {
107: if (inherited::Init() == false) {
108: return false;
109: }
110:
111: return true;
112: }
113:
1.1.1.10 root 114: busdata
1.1.1.11! root 115: IODevice::Read(busaddr addr)
1.1 root 116: {
1.1.1.11! root 117: return 0;
1.1 root 118: }
119:
1.1.1.10 root 120: busdata
1.1.1.11! root 121: IODevice::Write(busaddr addr, uint32 data)
1.1 root 122: {
1.1.1.11! root 123: return 0;
1.1 root 124: }
125:
1.1.1.10 root 126: busdata
1.1.1.11! root 127: IODevice::ReadBurst16(busaddr addr, uint32 *dst)
1.1 root 128: {
1.1.1.11! root 129: return BusData::BusErr;
1.1 root 130: }
131:
1.1.1.10 root 132: busdata
1.1.1.11! root 133: IODevice::WriteBurst16(busaddr addr, const uint32 *src)
1.1 root 134: {
1.1.1.11! root 135: return BusData::BusErr;
1.1 root 136: }
137:
1.1.1.10 root 138: busdata
1.1.1.11! root 139: IODevice::Read1(uint32 addr)
1.1 root 140: {
1.1.1.11! root 141: return 0xff;
1.1 root 142: }
143:
1.1.1.10 root 144: busdata
1.1.1.11! root 145: IODevice::Write1(uint32 addr, uint32 data)
1.1 root 146: {
147: return 0;
148: }
149:
1.1.1.10 root 150: busdata
1.1.1.11! root 151: IODevice::Peek1(uint32 addr)
1.1 root 152: {
1.1.1.2 root 153: return 0xff;
1.1 root 154: }
155:
1.1.1.10 root 156: bool
1.1.1.11! root 157: IODevice::Poke1(uint32 addr, uint32 data)
1.1.1.9 root 158: {
1.1.1.10 root 159: return false;
1.1.1.9 root 160: }
161:
162:
163: //
164: // バスエラー
165: //
1.1.1.6 root 166:
1.1 root 167: // コンストラクタ
168: BusErrDevice::BusErrDevice()
1.1.1.9 root 169: : inherited(OBJ_BUSERR)
1.1 root 170: {
1.1.1.7 root 171: ClearAlias();
172: AddAlias("BusErr");
1.1 root 173: }
174:
1.1.1.8 root 175: // デストラクタ
1.1 root 176: BusErrDevice::~BusErrDevice()
177: {
178: }
179:
1.1.1.10 root 180: busdata
1.1.1.11! root 181: BusErrDevice::Read(busaddr addr)
1.1 root 182: {
1.1.1.11! root 183: uint32 datasize = addr.GetSize();
1.1 root 184:
1.1.1.11! root 185: putlog(1, "$%08x.%u", addr.Addr(), datasize);
! 186: busdata data = BusData::BusErr;
! 187: data |= busdata::Size(datasize);
! 188: return data;
1.1 root 189: }
190:
1.1.1.10 root 191: busdata
1.1.1.11! root 192: BusErrDevice::Write(busaddr addr, uint32 data)
1.1 root 193: {
1.1.1.11! root 194: uint32 datasize = addr.GetSize();
1.1 root 195:
1.1.1.11! root 196: putlog(1, "$%08x.%u <- %0*X", addr.Addr(), datasize, datasize * 2, data);
! 197: busdata r = BusData::BusErr;
! 198: r |= busdata::Size(datasize);
! 199: return r;
1.1 root 200: }
201:
1.1.1.10 root 202: busdata
1.1.1.11! root 203: BusErrDevice::Peek1(uint32 addr)
1.1 root 204: {
1.1.1.11! root 205: return BusData::BusErr;
1.1 root 206: }
207:
208:
209: //
210: // 何もしないデバイス
211: //
212:
213: // コンストラクタ
1.1.1.7 root 214: NopIODevice::NopIODevice()
1.1.1.9 root 215: : inherited(OBJ_NOPIO)
1.1 root 216: {
1.1.1.7 root 217: ClearAlias();
218: AddAlias("NopIO");
1.1 root 219: }
220:
1.1.1.8 root 221: // デストラクタ
1.1.1.7 root 222: NopIODevice::~NopIODevice()
1.1 root 223: {
224: }
225:
1.1.1.10 root 226: busdata
1.1.1.11! root 227: NopIODevice::Read(busaddr addr)
1.1 root 228: {
1.1.1.11! root 229: uint32 datasize = addr.GetSize();
1.1 root 230:
1.1.1.11! root 231: putlog(1, "$%08x.%u", addr.Addr(), datasize);
! 232: busdata data = (1ULL << (datasize * 8)) - 1;
! 233: data |= busdata::Size(datasize);
! 234: return data;
1.1.1.5 root 235: }
236:
1.1.1.10 root 237: busdata
1.1.1.11! root 238: NopIODevice::Write(busaddr addr, uint32 data)
1.1.1.5 root 239: {
1.1.1.11! root 240: uint32 datasize = addr.GetSize();
1.1.1.5 root 241:
1.1.1.11! root 242: putlog(1, "$%08x.%u <- $%0*x", addr.Addr(), datasize, datasize * 2, data);
! 243: busdata r = busdata::Size(datasize);
! 244: return r;
1.1.1.5 root 245: }
246:
1.1.1.10 root 247: busdata
1.1.1.11! root 248: NopIODevice::Peek1(uint32 addr)
1.1.1.5 root 249: {
1.1.1.11! root 250: return 0xff;
1.1.1.5 root 251: }
252:
1.1.1.10 root 253: busdata
1.1.1.11! root 254: NopIODevice::Read1(uint32 addr)
1.1.1.5 root 255: {
1.1.1.11! root 256: putlog(1, "XP $%05x", addr);
! 257: busdata data = 0xff;
! 258: return data;
1.1 root 259: }
260:
1.1.1.10 root 261: busdata
1.1.1.11! root 262: NopIODevice::Write1(uint32 addr, uint32 data)
1.1 root 263: {
1.1.1.11! root 264: putlog(1, "XP $%05x <- $%02x", addr, data);
! 265: return 0;
1.1 root 266: }
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