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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/******************************************************************************
Synertek Systems Corp. SYM-1
Early driver by PeT mess@utanet.at May 2000
Rewritten by Dirk Best October 2007
******************************************************************************/
#include "emu.h"
#include "cpu/m6502/m6502.h"
#include "sound/speaker.h"
#include "includes/sym1.h"
/* Peripheral chips */
#include "machine/6532riot.h"
#include "machine/6522via.h"
#include "machine/74145.h"
/* Layout */
#include "sym1.lh"
#include "machine/ram.h"
/* pointers to memory locations */
/******************************************************************************
Memory Maps
******************************************************************************/
static ADDRESS_MAP_START( sym1_map, AS_PROGRAM, 8, sym1_state )
AM_RANGE(0x0000, 0x03ff) AM_RAM /* U12/U13 RAM */
AM_RANGE(0x0400, 0x07ff) AM_RAMBANK("bank2") AM_SHARE("ram_1k")
AM_RANGE(0x0800, 0x0bff) AM_RAMBANK("bank3") AM_SHARE("ram_2k")
AM_RANGE(0x0c00, 0x0fff) AM_RAMBANK("bank4") AM_SHARE("ram_3k")
AM_RANGE(0x8000, 0x8fff) AM_ROM AM_SHARE("monitor") /* U20 Monitor ROM */
AM_RANGE(0xa000, 0xa00f) AM_DEVREADWRITE("via6522_0", via6522_device, read, write) /* U25 VIA #1 */
AM_RANGE(0xa400, 0xa40f) AM_DEVREADWRITE_LEGACY("riot", riot6532_r, riot6532_w) /* U27 RIOT */
AM_RANGE(0xa600, 0xa67f) AM_RAMBANK("bank5") AM_SHARE("riot_ram") /* U27 RIOT RAM */
AM_RANGE(0xa800, 0xa80f) AM_DEVREADWRITE("via6522_1", via6522_device, read, write) /* U28 VIA #2 */
AM_RANGE(0xac00, 0xac0f) AM_DEVREADWRITE("via6522_2", via6522_device, read, write) /* U29 VIA #3 */
AM_RANGE(0xb000, 0xefff) AM_ROM
ADDRESS_MAP_END
/******************************************************************************
Input Ports
******************************************************************************/
static INPUT_PORTS_START( sym1 )
PORT_START("ROW-0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("0 USR 0") PORT_CODE(KEYCODE_0)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("4 USR 4") PORT_CODE(KEYCODE_4)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("8 JUMP") PORT_CODE(KEYCODE_8)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("C CALC") PORT_CODE(KEYCODE_C)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CR S DBL") PORT_CODE(KEYCODE_ENTER)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("GO LD P") PORT_CODE(KEYCODE_F3)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("LD 2 LD 1") PORT_CODE(KEYCODE_F1)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("ROW-1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("1 USR 1") PORT_CODE(KEYCODE_1)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("5 USR 5") PORT_CODE(KEYCODE_5)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("9 VER") PORT_CODE(KEYCODE_9)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("D DEP") PORT_CODE(KEYCODE_D)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("- +") PORT_CODE(KEYCODE_MINUS)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("REG SAV P") PORT_CODE(KEYCODE_F4)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SAV 2 SAV 1") PORT_CODE(KEYCODE_F2)
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("ROW-2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("2 USR 2") PORT_CODE(KEYCODE_2)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("6 USR 6") PORT_CODE(KEYCODE_6)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("A ASCII") PORT_CODE(KEYCODE_A)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("E EXEC") PORT_CODE(KEYCODE_E)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("\xE2\x86\x92 \xE2\x86\x90") PORT_CODE(KEYCODE_RIGHT) PORT_CODE(KEYCODE_LEFT)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("MEM WP") PORT_CODE(KEYCODE_F5)
PORT_BIT(0xc0, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("ROW-3")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("3 USR 3") PORT_CODE(KEYCODE_3)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("7 USR 7") PORT_CODE(KEYCODE_7)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("B B MOV") PORT_CODE(KEYCODE_B)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F FILL") PORT_CODE(KEYCODE_F)
PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0xe0, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("IN4") /* IN4 */
PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEBUG OFF") PORT_CODE(KEYCODE_F6)
PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("DEBUG ON") PORT_CODE(KEYCODE_F7)
PORT_START("WP")
PORT_DIPNAME(0x01, 0x01, "6532 RAM WP")
PORT_DIPSETTING(0x00, DEF_STR(Off))
PORT_DIPSETTING(0x01, DEF_STR(On))
PORT_DIPNAME(0x02, 0x02, "1K RAM WP")
PORT_DIPSETTING(0x00, DEF_STR(Off))
PORT_DIPSETTING(0x02, DEF_STR(On))
PORT_DIPNAME(0x04, 0x04, "2K RAM WP")
PORT_DIPSETTING(0x00, DEF_STR(Off))
PORT_DIPSETTING(0x04, DEF_STR(On))
PORT_DIPNAME(0x08, 0x08, "3K RAM WP")
PORT_DIPSETTING(0x00, DEF_STR(Off))
PORT_DIPSETTING(0x08, DEF_STR(On))
INPUT_PORTS_END
/******************************************************************************
Machine Drivers
******************************************************************************/
static MACHINE_CONFIG_START( sym1, sym1_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6502, SYM1_CLOCK) /* 1 MHz */
MCFG_CPU_PROGRAM_MAP(sym1_map)
MCFG_MACHINE_RESET(sym1)
MCFG_DEFAULT_LAYOUT(layout_sym1)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
/* devices */
MCFG_RIOT6532_ADD("riot", SYM1_CLOCK, sym1_r6532_interface)
MCFG_TTL74145_ADD("ttl74145", sym1_ttl74145_intf)
MCFG_VIA6522_ADD("via6522_0", 0, sym1_via0)
MCFG_VIA6522_ADD("via6522_1", 0, sym1_via1)
MCFG_VIA6522_ADD("via6522_2", 0, sym1_via2)
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("4K")
MCFG_RAM_EXTRA_OPTIONS("1K,2K,3K")
MACHINE_CONFIG_END
/******************************************************************************
ROM Definitions
******************************************************************************/
ROM_START( sym1 )
ROM_REGION(0x10000, "maincpu", 0)
ROM_SYSTEM_BIOS(0, "ver10", "Version 1.0")
ROMX_LOAD("symon1_0.bin", 0x8000, 0x1000, CRC(97928583) SHA1(6ac52c54adb7a086d51bc7f6d55dd30ab3a0a331),ROM_BIOS(1))
ROM_SYSTEM_BIOS(1, "ver11", "Version 1.1")
ROMX_LOAD("symon1_1.bin", 0x8000, 0x1000, CRC(7a4b1e12) SHA1(cebdf815105592658cfb7af262f2101d2aeab786),ROM_BIOS(2))
ROM_LOAD("rae_b000", 0xb000, 0x1000, CRC(F6429326) SHA1(6f2f10649b54f54217bb35c8c453b5d05434bd86) )
ROM_LOAD("bas_c000", 0xc000, 0x1000, CRC(C168FE70) SHA1(7447a5e229140cbbde4cf90886966a5d93aa24e1) )
ROM_LOAD("bas_d000", 0xd000, 0x1000, CRC(8375A978) SHA1(240301bf8bb8ddb99b65a585f17895e1ad872631) )
ROM_LOAD("rae_e000", 0xe000, 0x1000, CRC(2255444B) SHA1(c7dd812962c2e2edd2faa7055e9cce4e769c0388) )
ROM_END
/******************************************************************************
Drivers
******************************************************************************/
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1978, sym1, 0, 0, sym1, sym1, sym1_state, sym1, "Synertek Systems Corp.", "SYM-1/SY-VIM-1", 0 )
|