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Diffstat (limited to 'src/mame/includes/cxgbase.h')
-rw-r--r-- | src/mame/includes/cxgbase.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/mame/includes/cxgbase.h b/src/mame/includes/cxgbase.h new file mode 100644 index 00000000000..be3d8e599a6 --- /dev/null +++ b/src/mame/includes/cxgbase.h @@ -0,0 +1,75 @@ +// license:BSD-3-Clause +// copyright-holders:hap +/****************************************************************************** +* +* CXG chess computer driver base class +* +******************************************************************************/ + +#pragma once + +#ifndef MAME_INCLUDES_CXGBASE_H +#define MAME_INCLUDES_CXGBASE_H + +#include "machine/timer.h" +#include "sound/dac.h" + +class cxgbase_state : public driver_device +{ +public: + cxgbase_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_irq_on(*this, "irq_on"), + m_dac(*this, "dac"), + m_inp_matrix(*this, "IN.%u", 0), + m_out_x(*this, "%u.%u", 0U, 0U), + m_out_a(*this, "%u.a", 0U), + m_out_digit(*this, "digit%u", 0U), + m_display_wait(33), + m_display_maxy(1), + m_display_maxx(0) + { } + + // devices/pointers + required_device<cpu_device> m_maincpu; + optional_device<timer_device> m_irq_on; + optional_device<dac_bit_interface> m_dac; + optional_ioport_array<10> m_inp_matrix; // max 10 + output_finder<0x20, 0x20> m_out_x; + output_finder<0x20> m_out_a; + output_finder<0x20> m_out_digit; + + template<int L> TIMER_DEVICE_CALLBACK_MEMBER(irq_on) { m_maincpu->set_input_line(L, ASSERT_LINE); } + template<int L> TIMER_DEVICE_CALLBACK_MEMBER(irq_off) { m_maincpu->set_input_line(L, CLEAR_LINE); } + + // misc common + u16 m_inp_mux; // multiplexed keypad mask + u16 m_led_select; + u16 m_led_data; + + u16 read_inputs(int columns); + + // display common + int m_display_wait; // led/lamp off-delay in milliseconds (default 33ms) + int m_display_maxy; // display matrix number of rows + int m_display_maxx; // display matrix number of columns (max 31 for now) + + u32 m_display_state[0x20]; // display matrix rows data (last bit is used for always-on) + u16 m_display_segmask[0x20]; // if not 0, display matrix row is a digit, mask indicates connected segments + u8 m_display_decay[0x20][0x20]; // (internal use) + + TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick); + void display_update(); + void set_display_size(int maxx, int maxy); + void display_matrix(int maxx, int maxy, u32 setx, u32 sety, bool update = true); + +protected: + virtual void machine_start() override; + virtual void machine_reset() override; +}; + + +INPUT_PORTS_EXTERN( cxg_cb_magnets ); + +#endif // MAME_INCLUDES_CXGBASE_H |