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// license:GPL-2.0+
// copyright-holders:Raphael Nabet
/*
990_tap.h: include file for 990_tap.c
*/
extern const device_type TI990_TAPE_CTRL;
#define MAX_TAPE_UNIT 4
struct tape_unit_t
{
device_image_interface *img; // image descriptor
bool bot; // TRUE if we are at the beginning of tape
bool eot; // TRUE if we are at the end of tape
bool wp; // TRUE if tape is write-protected
};
class tap_990_device : public device_t
{
public:
tap_990_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template<class _Object> static devcb_base &static_set_int_callback(device_t &device, _Object object)
{
return downcast<tap_990_device &>(device).m_int_line.set_callback(object);
}
DECLARE_READ16_MEMBER( read );
DECLARE_WRITE16_MEMBER( write );
void set_tape(int id, device_image_interface *img, bool bot, bool eot, bool wp)
{
m_tape[id].img = img;
m_tape[id].bot = bot;
m_tape[id].eot = eot;
m_tape[id].wp = wp;
}
protected:
// device-level overrides
virtual void device_config_complete() override;
virtual void device_start() override;
virtual machine_config_constructor device_mconfig_additions() const override;
private:
int cur_tape_unit();
void update_interrupt();
void cmd_read_binary_forward();
void cmd_record_skip_forward();
void cmd_record_skip_reverse();
void cmd_rewind();
void cmd_rewind_and_offline();
void read_transport_status();
void execute_command();
devcb_write_line m_int_line;
uint16_t m_w[8];
tape_unit_t m_tape[MAX_TAPE_UNIT];
};
#define MCFG_TI990_TAPE_INT_HANDLER( _intcallb ) \
devcb = &tap_990_device::static_set_int_callback( *device, DEVCB_##_intcallb );
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