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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
#ifndef MAME_CPU_SCMP_SCMP_H
#define MAME_CPU_SCMP_SCMP_H
#pragma once
class scmp_device : public cpu_device
{
public:
// construction/destruction
scmp_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration helpers
auto flag_out() { return m_flag_out_func.bind(); }
auto s_out() { return m_sout_func.bind(); }
auto s_in() { return m_sin_func.bind(); }
auto sense_a() { return m_sensea_func.bind(); }
auto sense_b() { return m_senseb_func.bind(); }
auto halt() { return m_halt_func.bind(); }
protected:
enum
{
SCMP_PC, SCMP_P1, SCMP_P2, SCMP_P3, SCMP_AC, SCMP_ER, SCMP_SR
};
scmp_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_execute_interface overrides
virtual uint32_t execute_min_cycles() const noexcept override { return 5; }
virtual uint32_t execute_max_cycles() const noexcept override { return 23+8; } // max opcode + interrupt
virtual uint32_t execute_input_lines() const noexcept override { return 0; }
virtual void execute_run() override;
// device_memory_interface overrides
virtual space_config_vector memory_space_config() const override;
// device_state_interface overrides
virtual void state_string_export(const device_state_entry &entry, std::string &str) const override;
// device_disasm_interface overrides
virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
private:
address_space_config m_program_config;
PAIR m_PC;
PAIR m_P1;
PAIR m_P2;
PAIR m_P3;
uint8_t m_AC;
uint8_t m_ER;
uint8_t m_SR;
memory_access<16, 0, 0, ENDIANNESS_BIG>::cache m_cache;
memory_access<16, 0, 0, ENDIANNESS_BIG>::specific m_program;
int m_icount;
devcb_write8 m_flag_out_func;
devcb_write_line m_sout_func;
devcb_read_line m_sin_func;
devcb_read_line m_sensea_func;
devcb_read_line m_senseb_func;
devcb_write_line m_halt_func;
inline uint16_t ADD12(uint16_t addr, int8_t val);
inline uint8_t ROP();
inline uint8_t ARG();
inline uint8_t RM(uint32_t a);
inline void WM(uint32_t a, uint8_t v);
inline void illegal(uint8_t opcode);
inline PAIR *GET_PTR_REG(int num);
inline void BIN_ADD(uint8_t val);
inline void DEC_ADD(uint8_t val);
inline uint16_t GET_ADDR(uint8_t code);
void execute_one(int opcode);
void take_interrupt();
};
class ins8060_device : public scmp_device
{
public:
// construction/destruction
ins8060_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
virtual uint64_t execute_clocks_to_cycles(uint64_t clocks) const noexcept override { return (clocks + 2 - 1) / 2; }
virtual uint64_t execute_cycles_to_clocks(uint64_t cycles) const noexcept override { return (cycles * 2); }
};
DECLARE_DEVICE_TYPE(SCMP, scmp_device)
DECLARE_DEVICE_TYPE(INS8060, ins8060_device)
#endif // MAME_CPU_SCMP_SCMP_H
|