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Diffstat (limited to 'src/devices/bus/vic20/4cga.h')
-rw-r--r-- | src/devices/bus/vic20/4cga.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/devices/bus/vic20/4cga.h b/src/devices/bus/vic20/4cga.h new file mode 100644 index 00000000000..b852c5e0958 --- /dev/null +++ b/src/devices/bus/vic20/4cga.h @@ -0,0 +1,66 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Classical Games/Protovision 4 Player Interface emulation + +**********************************************************************/ + +#pragma once + +#ifndef __C64_4CGA__ +#define __C64_4CGA__ + + +#include "emu.h" +#include "user.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> c64_4cga_device + +class c64_4cga_device : public device_t, + public device_pet_user_port_interface +{ +public: + // construction/destruction + c64_4cga_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(write_joy3_0) { if (state) m_joy3 |= 1; else m_joy3 &= ~1; update_output(); } + DECLARE_WRITE_LINE_MEMBER(write_joy3_1) { if (state) m_joy3 |= 2; else m_joy3 &= ~2; update_output(); } + DECLARE_WRITE_LINE_MEMBER(write_joy3_2) { if (state) m_joy3 |= 4; else m_joy3 &= ~4; update_output(); } + DECLARE_WRITE_LINE_MEMBER(write_joy3_3) { if (state) m_joy3 |= 8; else m_joy3 &= ~8; update_output(); } + + DECLARE_WRITE_LINE_MEMBER(write_joy4_0) { if (state) m_joy4 |= 1; else m_joy4 &= ~1; update_output(); } + DECLARE_WRITE_LINE_MEMBER(write_joy4_1) { if (state) m_joy4 |= 2; else m_joy4 &= ~2; update_output(); } + DECLARE_WRITE_LINE_MEMBER(write_joy4_2) { if (state) m_joy4 |= 4; else m_joy4 &= ~4; update_output(); } + DECLARE_WRITE_LINE_MEMBER(write_joy4_3) { if (state) m_joy4 |= 8; else m_joy4 &= ~8; update_output(); } + +protected: + // device-level overrides + virtual void device_start(); + + // device_pet_user_port_interface overrides + virtual DECLARE_WRITE_LINE_MEMBER( input_l ); + +private: + void update_output(); + + int m_port; + UINT8 m_joy3; + UINT8 m_joy4; +}; + + +// device type definition +extern const device_type C64_4CGA; + + +#endif |