1 // license:BSD-3-Clause
2 // copyright-holders:Olivier Galibert
3 #ifndef MAME_BUS_ORICEXT_MICRODISC_H
4 #define MAME_BUS_ORICEXT_MICRODISC_H
5
6 #include "oricext.h"
7 #include "imagedev/floppy.h"
8 #include "machine/wd_fdc.h"
9
DECLARE_DEVICE_TYPE(ORIC_MICRODISC,oric_microdisc_device)10 DECLARE_DEVICE_TYPE(ORIC_MICRODISC, oric_microdisc_device)
11
12 class oric_microdisc_device : public device_t, public device_oricext_interface
13 {
14 public:
15 oric_microdisc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
16 virtual ~oric_microdisc_device();
17
18 protected:
19 enum {
20 P_IRQEN = 0x01,
21 P_ROMDIS = 0x02,
22 P_DDS = 0x04,
23 P_DDEN = 0x08,
24 P_SS = 0x10,
25 P_DRIVE = 0x60,
26 P_EPROM = 0x80
27 };
28
29 required_device<fd1793_device> fdc;
30
31 uint8_t *microdisc_rom;
32 floppy_image_device *floppies[4];
33 uint8_t port_314;
34 bool intrq_state, drq_state, hld_state;
35
36 virtual void device_start() override;
37 virtual void device_reset() override;
38 const tiny_rom_entry *device_rom_region() const override;
39 virtual void device_add_mconfig(machine_config &config) override;
40
41 void remap();
42
43 private:
44 DECLARE_WRITE_LINE_MEMBER(fdc_irq_w);
45 DECLARE_WRITE_LINE_MEMBER(fdc_drq_w);
46 DECLARE_WRITE_LINE_MEMBER(fdc_hld_w);
47
48 void port_314_w(uint8_t data);
49 uint8_t port_314_r();
50 uint8_t port_318_r();
51
52 void map(address_map &map);
53
54 DECLARE_FLOPPY_FORMATS(floppy_formats);
55 };
56
57 #endif // MAME_BUS_ORICEXT_MICRODISC_H
58