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"
28 class FLOPPY : public DEVICE
33 // NOISE* d_noise_head_down;
34 // NOISE* d_noise_head_up;
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
66 void Push(int part, unsigned char data);
67 unsigned char Pop(int part);
71 void PushStatus(int data);
72 unsigned char PopStatus();
73 void OutFDC(unsigned char data);
74 unsigned char InFDC();
78 void SenseInterruptStatus(void);
81 void OutB1H_66(unsigned char data);
82 void OutB2H_66(unsigned char data);
83 void OutB3H_66(unsigned char data);
84 void OutD0H_66(unsigned char data);
85 void OutD1H_66(unsigned char data);
86 void OutD2H_66(unsigned char data);
87 void OutD3H_66(unsigned char data);
88 void OutD6H_66(unsigned char data);
89 void OutD8H_66(unsigned char data);
90 void OutDAH_66(unsigned char data);
91 void OutDDH_66(unsigned char data);
92 void OutDEH_66(unsigned char data);
94 unsigned char InB2H_66();
95 unsigned char InD0H_66();
96 unsigned char InD1H_66();
97 unsigned char InD2H_66();
98 unsigned char InD3H_66();
99 unsigned char InD4H_66();
100 unsigned char InDCH_66();
101 unsigned char InDDH_66();
104 FLOPPY(VM_TEMPLATE* parent_vm, EMU* parent_emu) : DEVICE(parent_vm, parent_emu)
107 // d_noise_head_down = NULL;
108 // d_noise_head_up = NULL;
109 set_device_name(_T("Floppy Drive"));
117 void write_io8(uint32_t addr, uint32_t data);
118 uint32_t read_io8(uint32_t addr);
119 uint32_t read_signal(int ch);
120 void update_config();
121 bool process_state(FILEIO* state_fio, bool loading);
124 void set_context_ext(DEVICE* device)
128 void set_context_noise_seek(NOISE* device)
130 d_noise_seek = device;
132 NOISE* get_context_noise_seek()
136 // void set_context_noise_head_down(NOISE* device)
138 // d_noise_head_down = device;
140 // NOISE* get_context_noise_head_down()
142 // return d_noise_head_down;
144 // void set_context_noise_head_up(NOISE* device)
146 // d_noise_head_up = device;
148 // NOISE* get_context_noise_head_up()
150 // return d_noise_head_up;
152 DISK* get_disk_handler(int drv)
156 void open_disk(int drv, const _TCHAR* file_path, int bank);
157 void close_disk(int drv);
158 bool is_disk_inserted(int drv);
159 void is_disk_protected(int drv, bool value);
160 bool is_disk_protected(int drv);