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1.1 root 1: //
2: // nono
1.1.1.2 root 3: // Copyright (C) 2020 nono project
4: // Licensed under nono-license.txt
1.1 root 5: //
6:
1.1.1.7 root 7: //
8: // CRTC
9: //
10:
1.1 root 11: #pragma once
12:
1.1.1.9 root 13: #include "device.h"
1.1.1.7 root 14: #include "event.h"
15: #include "monitor.h"
1.1 root 16:
1.1.1.9 root 17: class MFPDevice;
18: class Renderer;
19: class TVRAMDevice;
20:
1.1 root 21: struct CRTC
22: {
1.1.1.7 root 23: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
24: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
25: // R00 | - | 水平トータル |
26: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
27: // R01 | - | 水平同期終了位置 |
28: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
29: // R02 | - | 水平表示開始位置 |
30: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
31: // R03 | - | 水平表示終了位置 |
32: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
33: //
34: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
35: // R04 | - | 垂直トータル |
36: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
37: // R05 | - | 垂直同期終了位置 |
38: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
39: // R06 | - | 垂直表示開始位置 |
40: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
41: // R07 | - | 垂直表示終了位置 |
42: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
43: //
44: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
45: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
46: // R08 | - | 外部同期水平アジャスト |
47: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
48: // R09 | - | ラスタ番号 |
49: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
50: // R10 | - | テキスト画面スクロール X位置 |
51: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
52: // R11 | - | テキスト画面スクロール Y位置 |
53: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
54: //
55: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
56: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
57: // R12 | - | グラフィック画面スクロール X0 |
58: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
59: // R13 | - | グラフィック画面スクロール Y0 |
60: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
61: // R14 | - | グラフィック画面スクロール X1 |
62: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
63: // R15 | - | グラフィック画面スクロール Y1 |
64: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
65: // R16 | - | グラフィック画面スクロール X2 |
66: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
67: // R17 | - | グラフィック画面スクロール Y2 |
68: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
69: // R18 | - | グラフィック画面スクロール X3 |
70: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
71: // R19 | - | グラフィック画面スクロール Y3 |
72: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
73: //
74: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
75: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
1.1.1.8 root 76: // R20 | - |MEM|SIZ| COL | - |HF | VD | HD |
1.1.1.7 root 77: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
78: // R21 | - |MEN|SA | AP | CP |
79: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
80: // R22 | ソースラスタ | デスティネーションラスタ |
81: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
82: // R23 | マスクパターン |
83: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
1.1.1.11! root 84: //
! 85: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
! 86: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 87: // OP | - |RC | 0 |FC |VI |
1.1.1.7 root 88: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
89:
1.1 root 90: uint16 r[24];
91: uint16 op;
92:
93: static const uint32 R00 = 0x00; // $E80000
94: static const uint32 R01 = 0x01; // $E80002
95: static const uint32 R02 = 0x02; // $E80004
96: static const uint32 R03 = 0x03; // $E80006
97: static const uint32 R04 = 0x04; // $E80008
98: static const uint32 R05 = 0x05; // $E8000A
99: static const uint32 R06 = 0x06; // $E8000C
100: static const uint32 R07 = 0x07; // $E8000E
101: static const uint32 R08 = 0x08; // $E80010
102: static const uint32 R09 = 0x09; // $E80012
103: static const uint32 R10 = 0x0a; // $E80014
104: static const uint32 R11 = 0x0b; // $E80016
105: static const uint32 R12 = 0x0c; // $E80018
106: static const uint32 R13 = 0x0d; // $E8001A
107: static const uint32 R14 = 0x0e; // $E8001C
108: static const uint32 R15 = 0x0f; // $E8001E
109: static const uint32 R16 = 0x10; // $E80020
110: static const uint32 R17 = 0x11; // $E80022
111: static const uint32 R18 = 0x12; // $E80024
112: static const uint32 R19 = 0x13; // $E80026
113: static const uint32 R20 = 0x14; // $E80028
114: static const uint32 R21 = 0x15; // $E8002A
115: static const uint32 R22 = 0x16; // $E8002C
116: static const uint32 R23 = 0x17; // $E8002E
117: static const uint32 REG_END = 0x18;
1.1.1.5 root 118: static const uint32 REG_OP = 0x240; // $E80480
1.1.1.7 root 119:
1.1.1.8 root 120: // R20
121: static const uint16 R20_MEM = 0x0800;
122: static const uint16 R20_SIZ = 0x0400;
123: static const uint16 R20_COL = 0x0300;
124: static const uint16 R20_HF = 0x0010;
125: static const uint16 R20_VD = 0x000c;
126: static const uint16 R20_HD = 0x0003;
127:
1.1.1.7 root 128: // 動作ポート
129: static const uint32 OP_RC = 0x08; // ラスターコピー開始(%1)
130: static const uint32 OP_FC = 0x02; // 高速クリア開始(%1)
131: static const uint32 OP_VI = 0x01; // 画像取り込み開始(%1)
1.1 root 132: };
133:
1.1.1.6 root 134: class CRTCDevice : public IODevice
1.1 root 135: {
1.1.1.2 root 136: using inherited = IODevice;
1.1 root 137: public:
138: CRTCDevice();
1.1.1.10 root 139: ~CRTCDevice() override;
1.1 root 140:
1.1.1.9 root 141: bool Init() override;
1.1.1.7 root 142: void ResetHard(bool poweron) override;
1.1 root 143:
1.1.1.11! root 144: busdata Read(busaddr addr) override;
! 145: busdata Write(busaddr addr, uint32 data) override;
! 146: busdata Peek1(uint32 offset) override;
1.1 root 147:
148: private:
1.1.1.11! root 149: static inline uint32 Decoder(uint32 addr);
! 150:
1.1.1.10 root 151: // ワード読み出し
1.1.1.11! root 152: busdata Peek2(uint32 addr) const;
1.1.1.7 root 153: // レジスタへの書き込み
1.1.1.2 root 154: void SetReg(uint32 offset, uint32 data);
1.1.1.7 root 155: // 動作ポートへの書き込み
156: void WriteOp(uint32 data);
157:
158: // 水平同期信号イベント
159: void HSyncCallback(Event& ev);
1.1 root 160:
1.1.1.8 root 161: // ラスターコピー完了イベント
162: void RasterCallback(Event& ev);
163:
1.1 root 164: // 垂直表示期間イベント
1.1.1.3 root 165: void VDispCallback(Event& ev);
1.1 root 166:
1.1.1.7 root 167: DECLARE_MONITOR_CALLBACK(MonitorUpdate);
168:
1.1 root 169: struct CRTC crtc {};
170:
1.1.1.8 root 171: // ラスターコピー指示
172: bool raster_copy {};
173:
1.1.1.9 root 174: MFPDevice *mfp {};
175: Renderer *renderer {};
176: TVRAMDevice *tvram {};
177:
1.1.1.7 root 178: Event hsync_event { this };
1.1.1.6 root 179: Event vdisp_event { this };
1.1.1.8 root 180: Event raster_event { this };
1.1.1.7 root 181:
182: Monitor monitor { this };
1.1 root 183: };
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