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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:
1.1.1.7 ! root 13: #include "event.h"
! 14: #include "monitor.h"
1.1 root 15:
16: struct CRTC
17: {
1.1.1.7 ! root 18: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
! 19: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 20: // R00 | - | 水平トータル |
! 21: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 22: // R01 | - | 水平同期終了位置 |
! 23: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 24: // R02 | - | 水平表示開始位置 |
! 25: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 26: // R03 | - | 水平表示終了位置 |
! 27: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 28: //
! 29: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 30: // R04 | - | 垂直トータル |
! 31: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 32: // R05 | - | 垂直同期終了位置 |
! 33: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 34: // R06 | - | 垂直表示開始位置 |
! 35: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 36: // R07 | - | 垂直表示終了位置 |
! 37: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 38: //
! 39: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
! 40: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 41: // R08 | - | 外部同期水平アジャスト |
! 42: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 43: // R09 | - | ラスタ番号 |
! 44: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 45: // R10 | - | テキスト画面スクロール X位置 |
! 46: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 47: // R11 | - | テキスト画面スクロール Y位置 |
! 48: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 49: //
! 50: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
! 51: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 52: // R12 | - | グラフィック画面スクロール X0 |
! 53: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 54: // R13 | - | グラフィック画面スクロール Y0 |
! 55: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 56: // R14 | - | グラフィック画面スクロール X1 |
! 57: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 58: // R15 | - | グラフィック画面スクロール Y1 |
! 59: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 60: // R16 | - | グラフィック画面スクロール X2 |
! 61: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 62: // R17 | - | グラフィック画面スクロール Y2 |
! 63: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 64: // R18 | - | グラフィック画面スクロール X3 |
! 65: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 66: // R19 | - | グラフィック画面スクロール Y3 |
! 67: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 68: //
! 69: // 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
! 70: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 71: // R20 | - |SIZ| COL | - |HF | VD | HD |
! 72: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 73: // R21 | - |MEN|SA | AP | CP |
! 74: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 75: // R22 | ソースラスタ | デスティネーションラスタ |
! 76: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 77: // R23 | マスクパターン |
! 78: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 79: // R24 | - |RC | 0 |FC |VI |
! 80: // +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
! 81:
1.1 root 82: uint16 r[24];
83: uint16 op;
84:
85: static const uint32 R00 = 0x00; // $E80000
86: static const uint32 R01 = 0x01; // $E80002
87: static const uint32 R02 = 0x02; // $E80004
88: static const uint32 R03 = 0x03; // $E80006
89: static const uint32 R04 = 0x04; // $E80008
90: static const uint32 R05 = 0x05; // $E8000A
91: static const uint32 R06 = 0x06; // $E8000C
92: static const uint32 R07 = 0x07; // $E8000E
93: static const uint32 R08 = 0x08; // $E80010
94: static const uint32 R09 = 0x09; // $E80012
95: static const uint32 R10 = 0x0a; // $E80014
96: static const uint32 R11 = 0x0b; // $E80016
97: static const uint32 R12 = 0x0c; // $E80018
98: static const uint32 R13 = 0x0d; // $E8001A
99: static const uint32 R14 = 0x0e; // $E8001C
100: static const uint32 R15 = 0x0f; // $E8001E
101: static const uint32 R16 = 0x10; // $E80020
102: static const uint32 R17 = 0x11; // $E80022
103: static const uint32 R18 = 0x12; // $E80024
104: static const uint32 R19 = 0x13; // $E80026
105: static const uint32 R20 = 0x14; // $E80028
106: static const uint32 R21 = 0x15; // $E8002A
107: static const uint32 R22 = 0x16; // $E8002C
108: static const uint32 R23 = 0x17; // $E8002E
109: static const uint32 REG_END = 0x18;
1.1.1.5 root 110: static const uint32 REG_OP = 0x240; // $E80480
1.1.1.7 ! root 111:
! 112: // 動作ポート
! 113: static const uint32 OP_RC = 0x08; // ラスターコピー開始(%1)
! 114: static const uint32 OP_FC = 0x02; // 高速クリア開始(%1)
! 115: static const uint32 OP_VI = 0x01; // 画像取り込み開始(%1)
1.1 root 116: };
117:
1.1.1.6 root 118: class CRTCDevice : public IODevice
1.1 root 119: {
1.1.1.2 root 120: using inherited = IODevice;
1.1 root 121: public:
122: CRTCDevice();
1.1.1.4 root 123: virtual ~CRTCDevice() override;
1.1 root 124:
1.1.1.7 ! root 125: void ResetHard(bool poweron) override;
1.1 root 126:
1.1.1.2 root 127: protected:
128: // BusIO インタフェース
129: static const uint NPORT = 0x800;
1.1.1.5 root 130: uint64 Read(uint32 offset);
131: uint64 Write(uint32 offset, uint32 data);
132: uint64 Peek(uint32 offset);
1.1 root 133:
134: private:
1.1.1.7 ! root 135: // レジスタへの書き込み
1.1.1.2 root 136: void SetReg(uint32 offset, uint32 data);
1.1.1.7 ! root 137: // 動作ポートへの書き込み
! 138: void WriteOp(uint32 data);
! 139:
! 140: // テキスト画面のラスターコピー
! 141: void StartRasterCopy();
! 142:
! 143: // 水平同期信号イベント
! 144: void HSyncCallback(Event& ev);
1.1 root 145:
146: // 垂直表示期間イベント
1.1.1.3 root 147: void VDispCallback(Event& ev);
1.1 root 148:
1.1.1.7 ! root 149: DECLARE_MONITOR_CALLBACK(MonitorUpdate);
! 150:
1.1 root 151: struct CRTC crtc {};
152:
1.1.1.7 ! root 153: Event hsync_event { this };
1.1.1.6 root 154: Event vdisp_event { this };
1.1.1.7 ! root 155:
! 156: Monitor monitor { this };
1.1 root 157: };
1.1.1.2 root 158:
1.1.1.7 ! root 159: extern CRTCDevice *gCRTC;
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