![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to device.cpp CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Isaki's NoNo m68k/m88k emulator] / nono / vm|
Return to device.cpp CVS log | Up to [Isaki's NoNo m68k/m88k emulator] / nono / vm |
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
1.1.1.9 root 20: Device::Device(int objid_)
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();
1.1.1.8 root 72: len = snprintf(buf, sizeof(buf), "%4d.%03d'%03d'%03d %08x %s ",
73: (int)(vt / 1000 / 1000 / 1000),
74: (int)((vt / 1000 / 1000) % 1000),
75: (int)((vt / 1000) % 1000),
76: (int)(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
1.1.1.9 root 93: IODevice::IODevice(int objid_)
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 root 115: IODevice::Read8(uint32 addr)
116: {
117: return 0xff;
118: }
119:
1.1.1.10! root 120: busdata
1.1 root 121: IODevice::Read16(uint32 addr)
122: {
123: return (Read8(addr) << 8) | Read8(addr + 1);
124: }
125:
1.1.1.10! root 126: busdata
1.1 root 127: IODevice::Read32(uint32 addr)
128: {
129: return (Read16(addr) << 16) | Read16(addr + 2);
130: }
131:
1.1.1.10! root 132: busdata
1.1 root 133: IODevice::Write8(uint32 addr, uint32 data)
134: {
135: return 0;
136: }
137:
1.1.1.10! root 138: busdata
1.1 root 139: IODevice::Write16(uint32 addr, uint32 data)
140: {
141: int64 berr;
142:
1.1.1.2 root 143: berr = Write8(addr, data >> 8);
1.1 root 144: if (berr < 0)
145: return berr;
146: berr = Write8(addr + 1, data & 0xff);
147: if (berr < 0)
148: return berr;
149: return 0;
150: }
151:
1.1.1.10! root 152: busdata
1.1 root 153: IODevice::Write32(uint32 addr, uint32 data)
154: {
155: int64 berr;
156:
157: berr = Write16(addr, data >> 16);
158: if (berr < 0)
159: return berr;
160: berr = Write16(addr + 2, data & 0xffff);
161: if (berr < 0)
162: return berr;
163: return 0;
164: }
165:
1.1.1.10! root 166: busdata
1.1 root 167: IODevice::Peek8(uint32 addr)
168: {
1.1.1.2 root 169: return 0xff;
1.1 root 170: }
171:
1.1.1.10! root 172: bool
1.1.1.9 root 173: IODevice::Poke8(uint32 addr, uint32 data)
174: {
1.1.1.10! root 175: return false;
1.1.1.9 root 176: }
177:
1.1.1.10! root 178: bool
1.1.1.9 root 179: IODevice::Poke(uint32 addr, uint32 data)
180: {
1.1.1.10! root 181: return false;
1.1.1.9 root 182: }
183:
184:
185: //
186: // バスエラー
187: //
1.1.1.6 root 188:
1.1 root 189: // コンストラクタ
190: BusErrDevice::BusErrDevice()
1.1.1.9 root 191: : inherited(OBJ_BUSERR)
1.1 root 192: {
1.1.1.7 root 193: ClearAlias();
194: AddAlias("BusErr");
1.1 root 195: }
196:
1.1.1.8 root 197: // デストラクタ
1.1 root 198: BusErrDevice::~BusErrDevice()
199: {
200: }
201:
1.1.1.10! root 202: busdata
1.1 root 203: BusErrDevice::Read8(uint32 addr)
204: {
1.1.1.4 root 205: putlog(1, "$%08x.b", addr);
1.1.1.10! root 206: return busdata::BusErr;
1.1 root 207: }
208:
1.1.1.10! root 209: busdata
1.1 root 210: BusErrDevice::Read16(uint32 addr)
211: {
1.1.1.4 root 212: putlog(1, "$%08x.w", addr);
1.1.1.10! root 213: return busdata::BusErr;
1.1 root 214: }
215:
1.1.1.10! root 216: busdata
1.1 root 217: BusErrDevice::Read32(uint32 addr)
218: {
1.1.1.4 root 219: putlog(1, "$%08x.l", addr);
1.1.1.10! root 220: return busdata::BusErr;
1.1 root 221: }
222:
1.1.1.10! root 223: busdata
1.1 root 224: BusErrDevice::Write8(uint32 addr, uint32 data)
225: {
1.1.1.4 root 226: putlog(1, "$%08x.b <- %02X", addr, data);
1.1.1.10! root 227: return busdata::BusErr;
1.1 root 228: }
229:
1.1.1.10! root 230: busdata
1.1 root 231: BusErrDevice::Write16(uint32 addr, uint32 data)
232: {
1.1.1.4 root 233: putlog(1, "$%08x.w <- %04X", addr, data);
1.1.1.10! root 234: return busdata::BusErr;
1.1 root 235: }
236:
1.1.1.10! root 237: busdata
1.1 root 238: BusErrDevice::Write32(uint32 addr, uint32 data)
239: {
1.1.1.4 root 240: putlog(1, "$%08x.l <- %08X", addr, data);
1.1.1.10! root 241: return busdata::BusErr;
1.1 root 242: }
243:
1.1.1.10! root 244: busdata
1.1 root 245: BusErrDevice::Peek8(uint32 addr)
246: {
1.1.1.10! root 247: return busdata::BusErr;
1.1 root 248: }
249:
250:
251: //
252: // 何もしないデバイス
253: //
254:
255: // コンストラクタ
1.1.1.7 root 256: NopIODevice::NopIODevice()
1.1.1.9 root 257: : inherited(OBJ_NOPIO)
1.1 root 258: {
1.1.1.7 root 259: ClearAlias();
260: AddAlias("NopIO");
1.1 root 261: }
262:
1.1.1.8 root 263: // デストラクタ
1.1.1.7 root 264: NopIODevice::~NopIODevice()
1.1 root 265: {
266: }
267:
1.1.1.10! root 268: busdata
1.1.1.7 root 269: NopIODevice::Read8(uint32 addr)
1.1 root 270: {
1.1.1.5 root 271: putlog(1, "$%08x.b", addr);
1.1 root 272: return 0xff;
273: }
274:
1.1.1.10! root 275: busdata
1.1.1.7 root 276: NopIODevice::Read16(uint32 addr)
1.1.1.5 root 277: {
278: putlog(1, "$%08x.w", addr);
279: return 0xffff;
280: }
281:
1.1.1.10! root 282: busdata
1.1.1.7 root 283: NopIODevice::Read32(uint32 addr)
1.1.1.5 root 284: {
285: putlog(1, "$%08x.l", addr);
286: return 0xffffffff;
287: }
288:
1.1.1.10! root 289: busdata
1.1.1.7 root 290: NopIODevice::Write8(uint32 addr, uint32 data)
1.1 root 291: {
1.1.1.5 root 292: putlog(1, "$%08x.b <- $%02x", addr, data);
293: return 0;
294: }
295:
1.1.1.10! root 296: busdata
1.1.1.7 root 297: NopIODevice::Write16(uint32 addr, uint32 data)
1.1.1.5 root 298: {
299: putlog(1, "$%08x.w <- $%04x", addr, data);
300: return 0;
301: }
302:
1.1.1.10! root 303: busdata
1.1.1.7 root 304: NopIODevice::Write32(uint32 addr, uint32 data)
1.1.1.5 root 305: {
306: putlog(1, "$%08x.l <- $%08x", addr, data);
1.1 root 307: return 0;
308: }
309:
1.1.1.10! root 310: busdata
1.1.1.7 root 311: NopIODevice::Peek8(uint32 addr)
1.1 root 312: {
313: return 0xff;
314: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.