2 // PC-6001/6601 disk I/O
3 // This file is based on a disk I/O program in C++
4 // by Mr. Yumitaro and translated into C for Cocoa iP6
5 // by Koichi NISHIDA 2006
9 NEC PC-6601 Emulator 'yaPC-6601'
10 NEC PC-6601SR Emulator 'yaPC-6801'
15 [ internal floppy drive ]
22 #include "../../emu.h"
23 #include "../device.h"
26 #if defined(USE_SOUND_FILES)
29 class FLOPPY : public DEVICE
36 #if defined(USE_SOUND_FILES)
44 int Seek88(int drvno, int trackno, int sectno);
45 unsigned char Getc88(int drvno);
46 int Putc88(int drvno, unsigned char dat);
48 // data buffer (256BytesX4)
49 unsigned char Data[4][256];
53 unsigned char Data[10];
57 CmdBuffer CmdIn; // command buffer
58 CmdBuffer CmdOut; // status buffer
59 unsigned char SeekST0; // ST0 when SEEK
60 unsigned char LastCylinder; // last read cylinder
61 int SeekEnd; // complete seek flag
62 unsigned char SendSectors; // amount(100H unit)
63 int DIO; // data direction TRUE: Buffer->CPU FALSE: CPU->Buffer
64 unsigned char Status; // FDC status register
65 #if defined(USE_SOUND_FILES)
66 int seek_track_num[2];
69 void Push(int part, unsigned char data);
70 unsigned char Pop(int part);
74 void PushStatus(int data);
75 unsigned char PopStatus();
76 void OutFDC(unsigned char data);
77 unsigned char InFDC();
81 void SenseInterruptStatus(void);
84 void OutB1H_66(unsigned char data);
85 void OutB2H_66(unsigned char data);
86 void OutB3H_66(unsigned char data);
87 void OutD0H_66(unsigned char data);
88 void OutD1H_66(unsigned char data);
89 void OutD2H_66(unsigned char data);
90 void OutD3H_66(unsigned char data);
91 void OutD6H_66(unsigned char data);
92 void OutD8H_66(unsigned char data);
93 void OutDAH_66(unsigned char data);
94 void OutDDH_66(unsigned char data);
95 void OutDEH_66(unsigned char data);
97 unsigned char InB2H_66();
98 unsigned char InD0H_66();
99 unsigned char InD1H_66();
100 unsigned char InD2H_66();
101 unsigned char InD3H_66();
102 unsigned char InD4H_66();
103 unsigned char InDCH_66();
104 unsigned char InDDH_66();
107 FLOPPY(VM* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
109 #if defined(USE_SOUND_FILES)
110 seek_track_num[0] = seek_track_num[1] = 0;
111 cur_trk[0] = cur_trk[1] = 0;
112 seek_event_id[0] = seek_event_id[1] = -1;
122 void event_callback(int event_id, int err);
123 void write_io8(uint32_t addr, uint32_t data);
124 uint32_t read_io8(uint32_t addr);
125 uint32_t read_signal(int ch);
126 void save_state(FILEIO* state_fio);
127 bool load_state(FILEIO* state_fio);
130 void set_context_ext(DEVICE* device)
134 #if defined(USE_SOUND_FILES)
135 void set_context_seek(DEVICE *d)
140 DISK* get_disk_handler(int drv)
144 void open_disk(int drv, const _TCHAR* file_path, int bank);
145 void close_disk(int drv);
146 bool is_disk_inserted(int drv);
147 void is_disk_protected(int drv, bool value);
148 bool is_disk_protected(int drv);