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#ifndef NULL_MODEM_H_
#define NULL_MODEM_H_
#include "bus/rs232/rs232.h"
#include "imagedev/bitbngr.h"
class null_modem_device : public device_t,
public device_rs232_port_interface
{
public:
null_modem_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual machine_config_constructor device_mconfig_additions() const;
WRITE_LINE_MEMBER( read ) { output_rxd(state); } /// HACK for DEVCB
virtual WRITE_LINE_MEMBER( input_txd ) { m_bitbanger->output(state); }
protected:
virtual void device_start() {}
virtual void device_reset() { output_rxd(1); }
private:
required_device<bitbanger_device> m_bitbanger;
};
extern const device_type NULL_MODEM;
#endif
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