// license:BSD-3-Clause // copyright-holders:R. Belmont /*************************************************************************** a2eauxslot.h - Apple IIe auxiliary slot and card emulation by R. Belmont ***************************************************************************/ #ifndef MAME_BUS_A2BUS_A2EAUXSLOT_H #define MAME_BUS_A2BUS_A2EAUXSLOT_H #pragma once #include "a2bus.h" //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_A2EAUXSLOT_CPU(_cputag) \ downcast(*device).set_cputag(_cputag); #define MCFG_A2EAUXSLOT_OUT_IRQ_CB(_devcb) \ devcb = &downcast(*device).set_out_irq_callback(DEVCB_##_devcb); #define MCFG_A2EAUXSLOT_OUT_NMI_CB(_devcb) \ devcb = &downcast(*device).set_out_nmi_callback(DEVCB_##_devcb); #define MCFG_A2EAUXSLOT_SLOT_ADD(_nbtag, _tag, _slot_intf, _def_slot) \ MCFG_DEVICE_ADD(_tag, A2EAUXSLOT_SLOT, 0) \ MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) \ downcast(*device).set_a2eauxslot_slot(_nbtag, _tag); #define MCFG_A2EAUXSLOT_SLOT_REMOVE(_tag) \ MCFG_DEVICE_REMOVE(_tag) //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class a2eauxslot_device; class a2eauxslot_slot_device : public device_t, public device_slot_interface { public: // construction/destruction a2eauxslot_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // device-level overrides virtual void device_start() override; // inline configuration void set_a2eauxslot_slot(const char *tag, const char *slottag) { m_a2eauxslot_tag = tag; m_a2eauxslot_slottag = slottag; } protected: a2eauxslot_slot_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); // configuration const char *m_a2eauxslot_tag, *m_a2eauxslot_slottag; }; // device type definition DECLARE_DEVICE_TYPE(A2EAUXSLOT_SLOT, a2eauxslot_slot_device) class device_a2eauxslot_card_interface; // ======================> a2eauxslot_device class a2eauxslot_device : public device_t { public: // construction/destruction a2eauxslot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // inline configuration void set_cputag(const char *tag) { m_cputag = tag; } template devcb_base &set_out_irq_callback(Object &&cb) { return m_out_irq_cb.set_callback(std::forward(cb)); } template devcb_base &set_out_nmi_callback(Object &&cb) { return m_out_nmi_cb.set_callback(std::forward(cb)); } void add_a2eauxslot_card(device_a2eauxslot_card_interface *card); device_a2eauxslot_card_interface *get_a2eauxslot_card(); void set_irq_line(int state); void set_nmi_line(int state); DECLARE_WRITE_LINE_MEMBER( irq_w ); DECLARE_WRITE_LINE_MEMBER( nmi_w ); protected: a2eauxslot_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); // device-level overrides virtual void device_start() override; virtual void device_reset() override; // internal state cpu_device *m_maincpu; devcb_write_line m_out_irq_cb; devcb_write_line m_out_nmi_cb; device_a2eauxslot_card_interface *m_device; const char *m_cputag; }; // device type definition DECLARE_DEVICE_TYPE(A2EAUXSLOT, a2eauxslot_device) // ======================> device_a2eauxslot_card_interface // class representing interface-specific live a2eauxslot card class device_a2eauxslot_card_interface : public device_slot_card_interface { friend class a2eauxslot_device; public: // construction/destruction virtual ~device_a2eauxslot_card_interface(); virtual uint8_t read_auxram(uint16_t offset) { printf("a2eauxslot: unhandled auxram read @ %04x\n", offset); return 0xff; } virtual void write_auxram(uint16_t offset, uint8_t data) { printf("a2eauxslot: unhandled auxram write %02x @ %04x\n", data, offset); } virtual void write_c07x(address_space &space, uint8_t offset, uint8_t data) {} virtual uint8_t *get_vram_ptr() = 0; virtual uint8_t *get_auxbank_ptr() = 0; virtual bool allow_dhr() { return true; } device_a2eauxslot_card_interface *next() const { return m_next; } void set_a2eauxslot_device(); void raise_slot_irq() { m_a2eauxslot->set_irq_line(ASSERT_LINE); } void lower_slot_irq() { m_a2eauxslot->set_irq_line(CLEAR_LINE); } void raise_slot_nmi() { m_a2eauxslot->set_nmi_line(ASSERT_LINE); } void lower_slot_nmi() { m_a2eauxslot->set_nmi_line(CLEAR_LINE); } // inline configuration void set_a2eauxslot_tag(const char *tag, const char *slottag) { m_a2eauxslot_tag = tag; m_a2eauxslot_slottag = slottag; } protected: device_a2eauxslot_card_interface(const machine_config &mconfig, device_t &device); a2eauxslot_device *m_a2eauxslot; const char *m_a2eauxslot_tag, *m_a2eauxslot_slottag; int m_slot; device_a2eauxslot_card_interface *m_next; }; #endif // MAME_BUS_A2BUS_A2EAUXSLOT_H