summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/hp_optroms/hp_optrom.h
blob: a18fd5e4087284d4af10da62654ebbf1cc68015d (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
// license:BSD-3-Clause
// copyright-holders: F. Ulivi
/*********************************************************************

    hp_optrom.h

    Optional ROMs for HP9845 systems

*********************************************************************/

#pragma once

#ifndef _HP_OPTROM_H_
#define _HP_OPTROM_H_

#include "emu.h"

class hp_optrom_cart_device : public device_t,
                              public device_slot_card_interface
{
public:
        // construction/destruction
        hp_optrom_cart_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
        hp_optrom_cart_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);

        // device-level overrides
        virtual void device_start() override {}
};

class hp_optrom_slot_device : public device_t,
                              public device_image_interface,
                              public device_slot_interface
{
public:
        // construction/destruction
        hp_optrom_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
        virtual ~hp_optrom_slot_device();

        // device-level overrides
        virtual void device_start() override;
        virtual void device_config_complete() override;

        // image-level overrides
        virtual bool call_load() override;
        virtual void call_unload() override;
        virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) override;

        virtual iodevice_t image_type() const override { return IO_CARTSLOT; }
        virtual bool is_readable()  const override { return true; }
        virtual bool is_writeable() const override { return false; }
        virtual bool is_creatable() const override { return false; }
        virtual bool must_be_loaded() const override { return false; }
        virtual bool is_reset_on_load() const override { return true; }
        virtual const option_guide *create_option_guide() const override { return nullptr; }
        virtual const char *image_interface() const override { return "hp9845b_rom"; }
        virtual const char *file_extensions() const override { return "bin"; }

        // slot interface overrides
        virtual std::string get_default_card_software() override;

protected:
        hp_optrom_cart_device *m_cart;
        dynamic_buffer m_content;
        offs_t m_base_addr;
        offs_t m_end_addr;
};

// device type definition
extern const device_type HP_OPTROM_SLOT;
extern const device_type HP_OPTROM_CART;

SLOT_INTERFACE_EXTERN(hp_optrom_slot_device);

#endif /* _HP_OPTROM_H_ */