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Diffstat (limited to 'src/mame/machine/tandy2kb.h')
-rw-r--r-- | src/mame/machine/tandy2kb.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/mame/machine/tandy2kb.h b/src/mame/machine/tandy2kb.h new file mode 100644 index 00000000000..9a2d65d373f --- /dev/null +++ b/src/mame/machine/tandy2kb.h @@ -0,0 +1,110 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Tandy 2000 keyboard emulation + +*********************************************************************/ + +#pragma once + +#ifndef __TANDY2K_KEYBOARD__ +#define __TANDY2K_KEYBOARD__ + +#include "emu.h" +#include "cpu/mcs48/mcs48.h" + + + +//************************************************************************** +// MACROS / CONSTANTS +//************************************************************************** + +#define TANDY2K_KEYBOARD_TAG "tandy2kb" + + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_TANDY2000_KEYBOARD_CLOCK_CALLBACK(_write) \ + devcb = &tandy2k_keyboard_device::set_clock_wr_callback(*device, DEVCB_##_write); + +#define MCFG_TANDY2000_KEYBOARD_DATA_CALLBACK(_write) \ + devcb = &tandy2k_keyboard_device::set_data_wr_callback(*device, DEVCB_##_write); + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> tandy2k_keyboard_device + +class tandy2k_keyboard_device : public device_t +{ +public: + // construction/destruction + tandy2k_keyboard_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + template<class _Object> static devcb_base &set_clock_wr_callback(device_t &device, _Object object) { return downcast<tandy2k_keyboard_device &>(device).m_write_clock.set_callback(object); } + template<class _Object> static devcb_base &set_data_wr_callback(device_t &device, _Object object) { return downcast<tandy2k_keyboard_device &>(device).m_write_data.set_callback(object); } + + // optional information overrides + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + virtual ioport_constructor device_input_ports() const; + + DECLARE_WRITE_LINE_MEMBER( power_w ); + DECLARE_WRITE_LINE_MEMBER( reset_w ); + DECLARE_WRITE_LINE_MEMBER( busy_w ); + DECLARE_READ_LINE_MEMBER( data_r ); + + // not really public + DECLARE_READ8_MEMBER( kb_p1_r ); + DECLARE_WRITE8_MEMBER( kb_p1_w ); + DECLARE_WRITE8_MEMBER( kb_p2_w ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + +private: + enum + { + LED_1 = 0, + LED_2 + }; + + required_device<cpu_device> m_maincpu; + required_ioport m_y0; + required_ioport m_y1; + required_ioport m_y2; + required_ioport m_y3; + required_ioport m_y4; + required_ioport m_y5; + required_ioport m_y6; + required_ioport m_y7; + required_ioport m_y8; + required_ioport m_y9; + required_ioport m_y10; + required_ioport m_y11; + + devcb_write_line m_write_clock; + devcb_write_line m_write_data; + + UINT16 m_keylatch; + + int m_clock; + int m_data; +}; + + +// device type definition +extern const device_type TANDY2K_KEYBOARD; + + + +#endif |