1 // license:BSD-3-Clause
2 // copyright-holders:Curt Coder
3 /**********************************************************************
4 
5     CMD SuperCPU v2 + SuperRAM emulation
6 
7 **********************************************************************/
8 
9 #ifndef MAME_BUS_C64_SUPERCPU_H
10 #define MAME_BUS_C64_SUPERCPU_H
11 
12 #pragma once
13 
14 #include "exp.h"
15 #include "cpu/g65816/g65816.h"
16 
17 
18 
19 //**************************************************************************
20 //  TYPE DEFINITIONS
21 //**************************************************************************
22 
23 // ======================> c64_supercpu_device
24 
25 class c64_supercpu_device : public device_t,
26 							public device_c64_expansion_card_interface
27 {
28 public:
29 	// construction/destruction
30 	c64_supercpu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
31 
32 protected:
33 	// device-level overrides
34 	virtual void device_start() override;
35 	virtual void device_reset() override;
36 
37 	// optional information overrides
38 	virtual const tiny_rom_entry *device_rom_region() const override;
39 	virtual void device_add_mconfig(machine_config &config) override;
40 	virtual ioport_constructor device_input_ports() const override;
41 
42 	// device_c64_expansion_card_interface overrides
43 	virtual uint8_t c64_cd_r(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
44 	virtual void c64_cd_w(offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
45 	virtual int c64_game_r(offs_t offset, int sphi2, int ba, int rw) override;
46 	virtual int c64_exrom_r(offs_t offset, int sphi2, int ba, int rw) override;
47 
48 private:
49 	required_device<cpu_device> m_maincpu;
50 	required_device<c64_expansion_slot_device> m_exp;
51 
52 	required_shared_ptr<uint8_t> m_sram;
53 	required_shared_ptr<uint8_t> m_dimm;
54 
55 	void c64_supercpu_map(address_map &map);
56 };
57 
58 
59 // device type definition
60 DECLARE_DEVICE_TYPE(C64_SUPERCPU, c64_supercpu_device)
61 
62 
63 #endif // MAME_BUS_C64_SUPERCPU_H
64