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// license:GPL-2.0+
// copyright-holders:Raphael Nabet
/*
990_dk.h: include file for 990_dk.c
*/
#ifndef MAME_BUS_TI99X_990_DK_H
#define MAME_BUS_TI99X_990_DK_H
#pragma once
DECLARE_DEVICE_TYPE(TI99X_FD800, fd800_legacy_device)
class fd800_legacy_device : public device_t
{
public:
fd800_legacy_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
uint8_t cru_r(offs_t offset);
void cru_w(offs_t offset, uint8_t data);
auto int_cb() { return m_int_line.bind(); }
private:
enum buf_mode_t
{
bm_off, bm_read, bm_write
};
static constexpr unsigned MAX_FLOPPIES = 4;
void device_start() override;
void device_reset() override;
void set_interrupt_line();
int read_id(int unit, int head, int *cylinder_id, int *sector_id);
int find_sector(int unit, int head, int sector, int *data_id);
int do_seek(int unit, int cylinder, int head);
int do_restore(int unit);
void do_read();
void do_write();
void do_cmd();
uint16_t m_recv_buf;
uint16_t m_stat_reg;
uint16_t m_xmit_buf;
uint16_t m_cmd_reg;
int m_interrupt_f_f;
devcb_write_line m_int_line;
uint8_t m_buf[128];
int m_buf_pos;
buf_mode_t m_buf_mode;
int m_unit;
// int m_head;
int m_sector;
/*int m_non_seq_mode;*/
// int m_ddam;
struct
{
// legacy_floppy_image_device *img;
int phys_cylinder;
int log_cylinder[2];
int seclen;
} m_drv[MAX_FLOPPIES];
};
// LEGACY_FLOPPY_OPTIONS_EXTERN(fd800);
#endif // MAME_BUS_TI99X_990_DK_H
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