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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:
1.1.1.3 root 7: #include "xiospace.h"
1.1 root 8: #include "areaset.h"
1.1.1.2 root 9: #include "busio.h"
1.1 root 10: #include "crtc.h"
11: #include "dmac.h"
12: #include "fdc.h"
13: #include "gvram.h"
1.1.1.3 root 14: #include "ioctlr.h"
1.1 root 15: #include "mfp.h"
1.1.1.2 root 16: #include "pio.h"
1.1.1.3 root 17: #include "pluto.h"
1.1 root 18: #include "printer.h"
19: #include "ram.h"
1.1.1.2 root 20: #include "romimg_x68k.h"
1.1 root 21: #include "rp5c15.h"
22: #include "scc.h"
23: #include "spc.h"
24: #include "sprite.h"
25: #include "sram.h"
26: #include "sysport.h"
27: #include "tvram.h"
1.1.1.3 root 28: #include "videoctlr.h"
1.1 root 29: #include "vm.h"
1.1.1.3 root 30: #include <typeinfo>
1.1 root 31:
32: //
33: // X68030 のメイン空間 ($000000-$FFFFFF) 担当。
34: //
35:
36: // デバイス
1.1.1.3 root 37: static std::unique_ptr<AreaSetDevice> areaset;
38: static std::unique_ptr<FDCDevice> fdc;
39: static std::unique_ptr<PlutoDevice> pluto;
40: static std::unique_ptr<PPIDevice> ppi;
41: static std::unique_ptr<PrinterDevice> printer;
42: static std::unique_ptr<SpriteDevice> sprite;
43: static std::unique_ptr<SysportDevice> sysport;
1.1 root 44:
45: // 1つの 8KB ブロックを複数のデバイスで共有する場合
46: class MuxDevice
47: : public IODevice
48: {
1.1.1.3 root 49: using inherited = IODevice;
1.1 root 50: public:
51: MuxDevice();
52: virtual ~MuxDevice();
53:
54: virtual uint64 Read8(uint32 addr);
55: virtual uint64 Read16(uint32 addr);
56: virtual uint64 Write8(uint32 addr, uint32 data);
57: virtual uint64 Write16(uint32 addr, uint32 data);
58: virtual uint64 Peek8(uint32 addr);
59:
1.1.1.2 root 60: IODevice *SearchDevice(uint32 addr) const;
1.1 root 61:
62: void AddDevice(IODevice *dev);
63:
64: std::vector<IODevice*> devlist;
65: };
66:
67: MuxDevice::MuxDevice()
68: {
69: logname = "none";
70: }
71:
72: MuxDevice::~MuxDevice()
73: {
74: }
75:
1.1.1.3 root 76: // デバイスを追加する。
77: // ここに追加するデバイスは dev->devlen を指定すること。
1.1 root 78: void
79: MuxDevice::AddDevice(IODevice *dev)
80: {
81: if (dev->devlen == 0) {
1.1.1.3 root 82: printf("MuxDevice::AddDevice: '%s' devlen not set!\n",
83: dev->devname.c_str());
1.1 root 84: exit(1);
85: }
86: devlist.push_back(dev);
87: }
88:
89: IODevice *
1.1.1.2 root 90: MuxDevice::SearchDevice(uint32 addr) const
1.1 root 91: {
92: for (const auto& d : devlist) {
93: if (d->devaddr <= addr && addr < d->devaddr + d->devlen) {
94: return d;
95: }
96: }
97: return nullptr;
98: }
99:
100: uint64
101: MuxDevice::Read8(uint32 addr)
102: {
103: IODevice *d = SearchDevice(addr);
104: if (d == nullptr) {
105: return (uint64)-1;
106: }
107: return d->Read8(addr);
108: }
109:
110: uint64
111: MuxDevice::Read16(uint32 addr)
112: {
113: IODevice *d = SearchDevice(addr);
114: if (d == nullptr) {
115: return (uint64)-1;
116: }
117: return d->Read16(addr);
118: }
119:
120: uint64
121: MuxDevice::Write8(uint32 addr, uint32 data)
122: {
123: IODevice *d = SearchDevice(addr);
124: if (d == nullptr) {
125: return (uint64)-1;
126: }
127: return d->Write8(addr, data);
128: }
129:
130: uint64
131: MuxDevice::Write16(uint32 addr, uint32 data)
132: {
133: IODevice *d = SearchDevice(addr);
134: if (d == nullptr) {
135: return (uint64)-1;
136: }
137: return d->Write16(addr, data);
138: }
139:
140: uint64
141: MuxDevice::Peek8(uint32 addr)
142: {
143: IODevice *d = SearchDevice(addr);
144: if (d == nullptr) {
145: return (uint64)-1;
146: }
147: return d->Peek8(addr);
148: }
149:
150:
151: // コンストラクタ
152: XIOSpaceDevice::XIOSpaceDevice()
153: {
154: logname = "xiospace";
155: devname = "IOSpace";
156:
157: #define ADD_DEVICE(varname, clsname) do { \
1.1.1.2 root 158: varname.reset(new clsname); \
159: AddDevice(varname.get()); \
1.1 root 160: } while (0)
161:
162: // デバイスクラス作成 (順序に注意)
163: ADD_DEVICE(areaset, AreaSetDevice());
1.1.1.4 ! root 164: ADD_DEVICE(gCGROM, CGROMDevice());
1.1.1.3 root 165: ADD_DEVICE(gCRTC, BusIO_W<CRTCDevice>());
166: ADD_DEVICE(gDMAC, BusIO_B<DMACDevice>());
167: ADD_DEVICE(fdc, BusIO_EB<FDCDevice>());
1.1 root 168: ADD_DEVICE(gGVRAM, GVRAMDevice());
1.1.1.3 root 169: ADD_DEVICE(gIOCtlr, BusIO_EB<IOCtlrDevice>());
1.1.1.4 ! root 170: ADD_DEVICE(gIPLROM1, IPLROM1Device());
! 171: ADD_DEVICE(gIPLROM2, IPLROM2Device());
1.1.1.3 root 172: ADD_DEVICE(gMFP, BusIO_EB<MFPDevice>());
1.1 root 173: ADD_DEVICE(pluto, PlutoDevice());
1.1.1.2 root 174: ADD_DEVICE(ppi, BusIO_EB<PPIDevice>());
1.1 root 175: ADD_DEVICE(printer, PrinterDevice());
1.1.1.3 root 176: ADD_DEVICE(gRTC, BusIO_EB<RP5C15Device>());
177: ADD_DEVICE(gSCC, BusIO_EB<SCCDevice>());
1.1.1.4 ! root 178: ADD_DEVICE(gSRAM, SRAMDevice()); // Required by SPC
1.1.1.2 root 179: ADD_DEVICE(gSPC, BusIO_X68kSPC<SPCDevice>());
1.1 root 180: ADD_DEVICE(sprite, SpriteDevice());
1.1.1.3 root 181: ADD_DEVICE(sysport, BusIO_FB<SysportDevice>());
1.1 root 182: ADD_DEVICE(gTVRAM, TVRAMDevice());
1.1.1.3 root 183: ADD_DEVICE(gVideoCtlr, BusIO_W<VideoCtlrDevice>());
1.1.1.4 ! root 184: }
! 185:
! 186: // デストラクタ
! 187: XIOSpaceDevice::~XIOSpaceDevice()
! 188: {
! 189: }
! 190:
! 191: bool
! 192: XIOSpaceDevice::Init()
! 193: {
! 194: // RAM のみ RamDevice::Init() で ram_size が決定してから行う。
! 195: for (int i = 0; i < ram_size / 8192; i++) {
! 196: table[i] = gRAM.get();
! 197: }
! 198:
! 199: // 必要なデバイスは全部埋めたので、この時点で nullptr なエントリを
! 200: // buserr に差し替える。
! 201: IODevice *buserr = gVM->GetBusErrDevice();
! 202: for (auto&& d : table) {
! 203: if (d == nullptr) {
! 204: d = buserr;
! 205: }
! 206: }
1.1 root 207:
208: // デバッグ表示
209: if (0) {
210: for (int i = 0; i < 512; i++) {
211: printf("[%3d] $%06x ", i, 0xc00000 + i * 8192);
1.1.1.4 ! root 212: assert(table[i]);
! 213: if (dynamic_cast<MuxDevice*>(table[i])) {
1.1 root 214: printf("MuxDevice\n");
1.1.1.4 ! root 215: } else {
1.1.1.3 root 216: printf("%s\n", table[i]->devname.c_str());
1.1 root 217: }
218: }
219: }
220:
1.1.1.4 ! root 221: return true;
1.1 root 222: }
223:
224: // デバイステーブルに dev を追加する。
1.1.1.3 root 225: // ここに追加するデバイスは dev->devlen を指定すること。
1.1 root 226: void
227: XIOSpaceDevice::AddDevice(IODevice *dev)
228: {
229: if (dev->devaddr == 0) {
1.1.1.3 root 230: printf("XIOSpaceDevice:AddDevice: '%s' devaddr not set!\n",
231: dev->devname.c_str());
1.1 root 232: exit(1);
233: }
234: if (dev->devlen == 0) {
1.1.1.3 root 235: printf("XIOSpaceDevice:AddDevice: '%s' devlen not set!\n",
236: dev->devname.c_str());
1.1 root 237: exit(1);
238: }
239:
240: int idx = dev->devaddr / 8192;
241: for (int i = idx; i < idx + (dev->devlen + 8191) / 8192; i++) {
242: if (table[i] == nullptr) {
243: table[i] = dev;
244: } else {
1.1.1.4 ! root 245: MuxDevice *mux = dynamic_cast<MuxDevice*>(table[i]);
! 246: if (mux) {
! 247: mux->AddDevice(dev);
! 248: } else {
! 249: MuxDevice *muxdev = new MuxDevice();
! 250: muxdev->AddDevice(table[i]);
! 251: muxdev->AddDevice(dev);
! 252: table[i] = muxdev;
! 253: }
1.1 root 254: }
255: }
256: }
257:
258: uint64
259: XIOSpaceDevice::Read8(uint32 addr)
260: {
261: addr &= 0x00ffffff;
262: IODevice *d = SearchDevice(addr);
263: return d->Read8(addr);
264: }
265:
266: uint64
267: XIOSpaceDevice::Read16(uint32 addr)
268: {
269: addr &= 0x00ffffff;
270: IODevice *d = SearchDevice(addr);
271: return d->Read16(addr);
272: }
273:
274: uint64
275: XIOSpaceDevice::Read32(uint32 addr)
276: {
277: addr &= 0x00ffffff;
278: IODevice *d = SearchDevice(addr);
279: return d->Read32(addr);
280: }
281:
282: uint64
283: XIOSpaceDevice::Write8(uint32 addr, uint32 data)
284: {
285: addr &= 0x00ffffff;
286: IODevice *d = SearchDevice(addr);
287: return d->Write8(addr, data);
288: }
289:
290: uint64
291: XIOSpaceDevice::Write16(uint32 addr, uint32 data)
292: {
293: addr &= 0x00ffffff;
294: IODevice *d = SearchDevice(addr);
295: return d->Write16(addr, data);
296: }
297:
298: uint64
299: XIOSpaceDevice::Write32(uint32 addr, uint32 data)
300: {
301: addr &= 0x00ffffff;
302: IODevice *d = SearchDevice(addr);
303: return d->Write32(addr, data);
304: }
305:
306: uint64
307: XIOSpaceDevice::Peek8(uint32 addr)
308: {
309: addr &= 0x00ffffff;
310: IODevice *d = SearchDevice(addr);
311: return d->Peek8(addr);
312: }
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