// license:BSD-3-Clause // copyright-holders:Nigel Barnes /********************************************************************** Acorn Tube ULA emulation **********************************************************************/ #ifndef MAME_MACHINE_TUBE_H #define MAME_MACHINE_TUBE_H #pragma once //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_TUBE_ADD(_tag) \ MCFG_DEVICE_ADD(_tag, TUBE, 0); #define MCFG_TUBE_HIRQ_HANDLER(_devcb) \ devcb = &downcast(*device).set_hirq_handler(DEVCB_##_devcb); #define MCFG_TUBE_PNMI_HANDLER(_devcb) \ devcb = &downcast(*device).set_pnmi_handler(DEVCB_##_devcb); #define MCFG_TUBE_PIRQ_HANDLER(_devcb) \ devcb = &downcast(*device).set_pirq_handler(DEVCB_##_devcb); #define MCFG_TUBE_DRQ_HANDLER(_devcb) \ devcb = &downcast(*device).set_drq_handler(DEVCB_##_devcb); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> tube_device class tube_device : public device_t { public: // construction/destruction tube_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // callbacks template devcb_base &set_hirq_handler(Object &&cb) { return m_hirq_handler.set_callback(std::forward(cb)); } template devcb_base &set_pnmi_handler(Object &&cb) { return m_pnmi_handler.set_callback(std::forward(cb)); } template devcb_base &set_pirq_handler(Object &&cb) { return m_pirq_handler.set_callback(std::forward(cb)); } template devcb_base &set_drq_handler(Object &&cb) { return m_drq_handler.set_callback(std::forward(cb)); } DECLARE_READ8_MEMBER(host_r); DECLARE_WRITE8_MEMBER(host_w); DECLARE_READ8_MEMBER(parasite_r); DECLARE_WRITE8_MEMBER(parasite_w); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; private: uint8_t m_ph1[24]; uint8_t m_ph2; uint8_t m_ph3[2]; uint8_t m_ph4; uint8_t m_hp1; uint8_t m_hp2; uint8_t m_hp3[2]; uint8_t m_hp4; uint8_t m_hstat[4]; uint8_t m_pstat[4]; uint8_t m_r1stat; int m_ph1pos; int m_ph3pos; int m_hp3pos; void update_interrupts(); devcb_write_line m_hirq_handler; devcb_write_line m_pnmi_handler; devcb_write_line m_pirq_handler; devcb_write_line m_drq_handler; }; // device type definition DECLARE_DEVICE_TYPE(TUBE, tube_device) #endif // MAME_MACHINE_TUBE_H