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
75
76
77
78
79
80
81
82
83
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Grundy NewBrain Expansion Interface Module emulation
**********************************************************************/
#pragma once
#ifndef __NEWBRAIN_EIM__
#define __NEWBRAIN_EIM__
#include "emu.h"
#include "exp.h"
#include "bus/rs232/rs232.h"
#include "machine/6850acia.h"
#include "machine/adc0808.h"
#include "machine/z80ctc.h"
#include "machine/ram.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> newbrain_eim_t
class newbrain_eim_t : public device_t,
public device_newbrain_expansion_slot_interface
{
public:
// construction/destruction
newbrain_eim_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const override;
virtual machine_config_constructor device_mconfig_additions() const override;
DECLARE_READ8_MEMBER( anout_r );
DECLARE_WRITE8_MEMBER( anout_w );
DECLARE_READ8_MEMBER( anin_r );
DECLARE_WRITE8_MEMBER( anio_w );
DECLARE_WRITE_LINE_MEMBER( acia_interrupt );
DECLARE_WRITE_LINE_MEMBER( ctc_z2_w );
DECLARE_WRITE_LINE_MEMBER( adc_eoc_w );
ADC0808_ANALOG_READ_CB(adc_vref_pos_r);
ADC0808_ANALOG_READ_CB(adc_vref_neg_r);
ADC0808_ANALOG_READ_CB(adc_input_r);
TIMER_DEVICE_CALLBACK_MEMBER(ctc_c2_tick);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_newbrain_expansion_slot_interface overrides
virtual UINT8 mreq_r(address_space &space, offs_t offset, UINT8 data, bool &romov, int &exrm, bool &raminh) override;
virtual void mreq_w(address_space &space, offs_t offset, UINT8 data, bool &romov, int &exrm, bool &raminh) override;
virtual UINT8 iorq_r(address_space &space, offs_t offset, UINT8 data, bool &prtov) override;
virtual void iorq_w(address_space &space, offs_t offset, UINT8 data, bool &prtov) override;
private:
required_device<z80ctc_device> m_ctc;
required_device<acia6850_device> m_acia;
required_device<newbrain_expansion_slot_t> m_exp;
required_memory_region m_rom;
optional_shared_ptr<UINT8> m_ram;
int m_aciaint;
int m_anint;
};
// device type definition
extern const device_type NEWBRAIN_EIM;
#endif
|