summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/machine/wpc_shift.h
blob: 6b4172f7657d5f486bd34631ae65a49a0223acd8 (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
// license:BSD-3-Clause
// copyright-holders:Olivier Galibert

// Williams Pinball Controller Shift-based protection simulation

#ifndef MAME_MACHINE_WPC_SHIFT_H
#define MAME_MACHINE_WPC_SHIFT_H

class wpc_shift_device : public device_t
{
public:
	wpc_shift_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
	virtual ~wpc_shift_device();

	void registers(address_map &map);

protected:
	virtual void device_start() override;
	virtual void device_reset() override;

private:
	uint16_t adr;
	uint8_t val1, val2;

	uint8_t adrh_r();
	void adrh_w(uint8_t data);
	uint8_t adrl_r();
	void adrl_w(uint8_t data);
	uint8_t val1_r();
	void val1_w(uint8_t data);
	uint8_t val2_r();
	void val2_w(uint8_t data);
};

DECLARE_DEVICE_TYPE(WPC_SHIFT, wpc_shift_device)

#endif // MAME_MACHINE_WPC_SHIFT_H