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1.1 root 1: //
2: // nono
3: // Copyright (C) 2020 nono project
4: // Licensed under nono-license.txt
5: //
6:
1.1.1.2 root 7: //
8: // LUNA ビットマッププレーン
9: //
10:
1.1 root 11: #pragma once
12:
1.1.1.2 root 13: #include "planevram.h"
1.1 root 14: #include "monitor.h"
15:
1.1.1.2 root 16: // VRAM の ROP (定数)
17: struct ROP {
18: static const uint ZERO = 0; // 0
19: static const uint AND1 = 1; // vram & data
20: static const uint AND2 = 2; // vram & ~data
21: static const uint cmd = 3;
22: static const uint AND3 = 4; // ~vram & data
23: static const uint THRU = 5; // data
24: static const uint EOR = 6; // vram ^ data
25: static const uint OR1 = 7; // vram | data
26: static const uint NOR = 8; // ~vram | ~data
27: static const uint ENOR = 9; // (vram & data) | (~vram & ~data)
28: static const uint INV1 = 10; // ~data
29: static const uint OR2 = 11; // vram | ~data
30: static const uint INV2 = 12; // ~vram
31: static const uint OR3 = 13; // ~vram | data
32: static const uint NAND = 14; // ~vram | ~data
33: static const uint ONE = 15; // 1
34: };
35:
36: class LunafbDevice : public PlaneVRAMDevice
1.1 root 37: {
1.1.1.2 root 38: using inherited = PlaneVRAMDevice;
1.1 root 39:
40: static const uint32 plane0base = 0xb10c0000;
41: static const uint32 plane7end = 0xb12c0000;
42: static const uint32 fcset0base = 0xb1300000;
43: static const uint32 fcset7end = 0xb1500000;
1.1.1.2 root 44:
45: // プレーン数の上限
46: static const int MAX_PLANES = 8;
47:
1.1 root 48: public:
49: LunafbDevice();
50: virtual ~LunafbDevice() override;
51:
52: bool Init() override;
1.1.1.2 root 53: void ResetHard(bool poweron) override;
1.1 root 54:
55: uint64 Read8(uint32 addr) override;
56: uint64 Read16(uint32 addr) override;
57: uint64 Read32(uint32 addr) override;
58: uint64 Write8(uint32 addr, uint32 data) override;
59: uint64 Write16(uint32 addr, uint32 data) override;
60: uint64 Write32(uint32 addr, uint32 data) override;
61: uint64 Peek8(uint32 addr) override;
62:
63: // エミュレータによる出力
1.1.1.2 root 64: void EmuInitScreen();
65: void EmuFill(uint x, uint y, uint w, uint h, uint32 data);
66: void EmuPutc(uint x, uint y, uint c);
67: void EmuPutc(uint x, uint y, uint c, int rop);
68: void EmuScrollY(uint dy, uint sy, uint h);
1.1 root 69:
70: private:
1.1.1.2 root 71: // offset の VRAM が変更されたことを記録する
72: inline void SetDirty(uint32 offset);
73:
1.1 root 74: void WriteRFCNT(uint32);
75: void WriteCommonBitmap8(uint32, uint32);
76: void WriteCommonBitmap16(uint32, uint32);
77: void WriteCommonBitmap32(uint32, uint32);
1.1.1.2 root 78: void WriteCommonFCSet(uint rop, uint32 data);
1.1 root 79: void WritePlane8(uint, uint32, uint32);
80: void WritePlane16(uint, uint32, uint32);
81: void WritePlane32(uint, uint32, uint32);
82:
83: DECLARE_MONITOR_CALLBACK(MonitorUpdate);
84:
1.1.1.2 root 85: // 演算
86: static uint32 RasterOp(uint rop, uint32 vram, uint32 data);
87:
1.1 root 88: // ROP 文字列を返す
89: static const char *RopStr(uint rop);
90:
91: // 現在のプレーン数でのプレーンの終了アドレス
92: uint32 plane_end {};
1.1.1.3 ! root 93: // 現在のプレーン数での FCSet の(ブロック単位での)最終アドレス
! 94: uint32 fcset_end {};
1.1 root 95:
96: // RFCNT
1.1.1.2 root 97: //
98: // 3 2 1 0
99: // 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
100: // +---------------+---------------+-----------+---+---------------+
101: // | 無効 | 水平カウンタ | 無効 | ラスタカウンタ |
102: // +---------------+---------------+-----------+---+---------------+
1.1 root 103: uint32 rfcnt {};
1.1.1.2 root 104: // 親クラスにある
105: // int xscroll {};
106: // int yscroll {};
1.1 root 107:
108: // プレーンセレクタ
1.1.1.2 root 109: //
110: // 3 2 1 0
111: // 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
112: // +---------------+---------------+---------------+-------+-+-+-+-+
113: // | 無効 |3|2|1|0|
114: // +---------------+---------------+---------------+-------+-+-+-+-+
115: // | | | |
116: // プレーンN (%1 = 同時設定/書き込み有効、%0=無効) --------+-+-+-+
1.1 root 117:
1.1.1.2 root 118: uint32 bmsel {};
1.1 root 119:
120: // ファンクションセットとアクセスマスク
1.1.1.2 root 121: uint fcset[MAX_PLANES] {};
122: uint32 fcmask[MAX_PLANES] {};
1.1 root 123:
124: Monitor monitor { this };
125: };
126:
1.1.1.2 root 127: #define gLunafb (dynamic_cast<LunafbDevice *>(gPlaneVRAM))
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