// license:BSD-3-Clause // copyright-holders:smf #ifndef __LATCH_H__ #define __LATCH_H__ #define MCFG_OUTPUT_LATCH_BIT0_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit0_handler(*device, DEVCB_##_devcb); #define MCFG_OUTPUT_LATCH_BIT1_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit1_handler(*device, DEVCB_##_devcb); #define MCFG_OUTPUT_LATCH_BIT2_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit2_handler(*device, DEVCB_##_devcb); #define MCFG_OUTPUT_LATCH_BIT3_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit3_handler(*device, DEVCB_##_devcb); #define MCFG_OUTPUT_LATCH_BIT4_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit4_handler(*device, DEVCB_##_devcb); #define MCFG_OUTPUT_LATCH_BIT5_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit5_handler(*device, DEVCB_##_devcb); #define MCFG_OUTPUT_LATCH_BIT6_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit6_handler(*device, DEVCB_##_devcb); #define MCFG_OUTPUT_LATCH_BIT7_HANDLER(_devcb) \ devcb = &output_latch_device::set_bit7_handler(*device, DEVCB_##_devcb); class output_latch_device : public device_t { public: output_latch_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); template static devcb_base &set_bit0_handler(device_t &device, _Object object) { return downcast(device).m_bit0_handler.set_callback(object); } template static devcb_base &set_bit1_handler(device_t &device, _Object object) { return downcast(device).m_bit1_handler.set_callback(object); } template static devcb_base &set_bit2_handler(device_t &device, _Object object) { return downcast(device).m_bit2_handler.set_callback(object); } template static devcb_base &set_bit3_handler(device_t &device, _Object object) { return downcast(device).m_bit3_handler.set_callback(object); } template static devcb_base &set_bit4_handler(device_t &device, _Object object) { return downcast(device).m_bit4_handler.set_callback(object); } template static devcb_base &set_bit5_handler(device_t &device, _Object object) { return downcast(device).m_bit5_handler.set_callback(object); } template static devcb_base &set_bit6_handler(device_t &device, _Object object) { return downcast(device).m_bit6_handler.set_callback(object); } template static devcb_base &set_bit7_handler(device_t &device, _Object object) { return downcast(device).m_bit7_handler.set_callback(object); } void write(uint8_t data); DECLARE_WRITE8_MEMBER(write) { write(data); } protected: virtual void device_start() override; private: bool m_resolved; int m_bit0; int m_bit1; int m_bit2; int m_bit3; int m_bit4; int m_bit5; int m_bit6; int m_bit7; devcb_write_line m_bit0_handler; devcb_write_line m_bit1_handler; devcb_write_line m_bit2_handler; devcb_write_line m_bit3_handler; devcb_write_line m_bit4_handler; devcb_write_line m_bit5_handler; devcb_write_line m_bit6_handler; devcb_write_line m_bit7_handler; }; extern const device_type OUTPUT_LATCH; #endif