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// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Miodrag Milanovic
/*********************************************************************
bitbngr.h
*********************************************************************/
#ifndef MAME_DEVICES_IMAGEDEV_BITBNGR_H
#define MAME_DEVICES_IMAGEDEV_BITBNGR_H
class bitbanger_device : public device_t,
public device_image_interface
{
public:
void set_interface(const char *interface) { m_interface = interface; }
void set_readonly(bool is_readonly) { m_is_readonly = is_readonly; }
// construction/destruction
bitbanger_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// image-level overrides
virtual image_init_result call_load() override;
virtual image_init_result call_create(int format_type, util::option_resolution *format_options) override;
virtual void call_unload() override;
// image device
virtual iodevice_t image_type() const override { return IO_SERIAL; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return !m_is_readonly; }
virtual bool is_creatable() const override { return !m_is_readonly; }
virtual bool must_be_loaded() const override { return 0; }
virtual bool is_reset_on_load() const override { return 0; }
virtual const char *image_interface() const override { return m_interface; }
virtual const char *file_extensions() const override { return ""; }
virtual const char *custom_instance_name() const override { return "bitbanger"; }
virtual const char *custom_brief_instance_name() const override { return "bitb"; }
void output(uint8_t data);
uint32_t input(void *buffer, uint32_t length);
protected:
// device-level overrides
virtual void device_start() override;
private:
char const *m_interface;
bool m_is_readonly;
};
#define MCFG_BITBANGER_INTERFACE(_interface) \
downcast<bitbanger_device &>(*device).set_interface(_interface);
#define MCFG_BITBANGER_READONLY(_readonly) \
downcast<bitbanger_device &>(*device).set_readonly(_readonly);
// device type definition
DECLARE_DEVICE_TYPE(BITBANGER, bitbanger_device)
#endif // MAME_DEVICES_IMAGEDEV_BITBNGR_H
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