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Diffstat (limited to 'src/devices/bus/sms_ctrl/rfu.h')
-rw-r--r-- | src/devices/bus/sms_ctrl/rfu.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/devices/bus/sms_ctrl/rfu.h b/src/devices/bus/sms_ctrl/rfu.h new file mode 100644 index 00000000000..a27ef0aca02 --- /dev/null +++ b/src/devices/bus/sms_ctrl/rfu.h @@ -0,0 +1,62 @@ +// license:BSD-3-Clause +// copyright-holders:Fabio Priuli +/********************************************************************** + + Sega Master System "Rapid Fire Unit" emulation + +**********************************************************************/ + +#pragma once + +#ifndef __SMS_RAPID_FIRE__ +#define __SMS_RAPID_FIRE__ + + +#include "emu.h" +#include "smsctrl.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> sms_rapid_fire_device + +class sms_rapid_fire_device : public device_t, + public device_sms_control_port_interface +{ +public: + // construction/destruction + sms_rapid_fire_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual ioport_constructor device_input_ports() const; + + DECLARE_WRITE_LINE_MEMBER(th_pin_w); + DECLARE_READ32_MEMBER(pixel_r); + +protected: + // device-level overrides + virtual void device_start(); + virtual machine_config_constructor device_mconfig_additions() const; + + // device_sms_control_port_interface overrides + virtual UINT8 peripheral_r(); + virtual void peripheral_w(UINT8 data); + +private: + required_ioport m_rfire_sw; + required_device<sms_control_port_device> m_subctrl_port; + + UINT8 m_read_state; + attotime m_start_time; + const attotime m_interval; +}; + + +// device type definition +extern const device_type SMS_RAPID_FIRE; + + +#endif |