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
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
// license:BSD-3-Clause
// copyright-holders:Patrick Mackinlay
/*
* An emulation of systems based on the Jazz computer architecture, originally
* developed by Microsoft. Specific systems which implemented this architecture
* include the MIPS Magnum/Millenium 4000 and Olivetti M700-10.
*
* References:
*
* https://www.linux-mips.org/wiki/Jazz
* http://gunkies.org/wiki/MIPS_Magnum
* http://www.sensi.org/~alec/mips/mips-history.html
*
* TODO
* - everything (skeleton only)
*
* Unconfirmed parts lists from ARCSystem reference design (which appears to
* be very similar or identical to the Jazz system) taken from:
* https://www.linux-mips.org/archives/riscy/1993-12/msg00013.html
*
* Ref Part Function
*
* System board:
*
* Dallas DS1287 RTC and NVRAM
* Dallas DS1225Y 8k non-volatile SRAM
* WD16C552 Dual serial and parallel port controller
* Intel N82077A Floppy drive controller
* National DP83932BFV Ethernet controller
* Intel 82358 EISA Bus Controller
* Intel 82357 EISA Integrated System Peripheral (ISP)
* Intel 82352 x 2 EISA Bus Buffer (EBB)
* Emulex FAS216 SCSI controller
* 27C01 128k EPROM
* 28F020 256k flash memory
* NEC μPD31432 ARC address path ASIC
* NEC μPD31431 x 2 ARC data path ASIC
* NEC μPD30400 R4000PC/50 CPU
*
* Audio board:
*
* Crystal CS4215 Audio codec
* Altera FPGA x 4 Audio DMA
*
* Video board:
*
* 27C010 128k EPROM
* IMS G364-11S Video controller
* NEC μPD42274V-80 x 16 256kx4 VRAM (2MiB)
*/
#include "emu.h"
#include "includes/jazz.h"
#include "debugger.h"
#define VERBOSE 0
#include "logmacro.h"
void jazz_state::machine_start()
{
}
void jazz_state::machine_reset()
{
}
void jazz_state::init_common()
{
// map the configured ram
m_maincpu->space(AS_PROGRAM).install_ram(0, m_ram->mask(), m_ram->pointer());
}
void jazz_state::jazz_common_map(address_map &map)
{
map(0x1fc00000, 0x1fc3ffff).r(m_flash, FUNC(amd_28f020_device::read));
// FIXME: lots of guesswork and assumptions here for now
map(0x80000000, 0x80000fff).m(m_mct_adr, FUNC(jazz_mct_adr_device::map));
map(0x80001000, 0x80001fff).m(m_network, FUNC(dp83932c_device::map));
//map(0x80002000, 0x80002fff).m(m_scsi, FUNC(ncr5390_device::map)).umask32(0x000000ff);
map(0x80003000, 0x80003fff).m(m_fdc, FUNC(n82077aa_device::map));
//map(0x80004000, 0x80004fff).rw(m_rtc, FUNC(mc146818_device::read), FUNC(mc146818_device::write));
//map(0x80005000, 0x80005fff).m() // keyboard/mouse
//map(0x80006000, 0x80006fff).m() // serial1
//map(0x80007000, 0x80007fff).m() // serial2
//map(0x80008000, 0x80008fff).m() // parallel
map(0x80009000, 0x80009fff).ram().share("nvram"); // unprotected?
map(0x8000a000, 0x8000afff).ram().share("nvram"); // protected?
map(0x8000b000, 0x8000bfff).ram().share("nvram"); // read-only? also sonic IO access?
//map(0x8000c000, 0x8000cfff) // sound
map(0x8000d000, 0x8000dfff).noprw(); // dummy dma device?
map(0x8000f000, 0x8000f001).rw(FUNC(jazz_state::led_r), FUNC(jazz_state::led_w));
//map(0x800e0000, 0x800e0000).rw(FUNC(jazz_state::dram_config_r), FUNC(jazz_state::dram_config_w));
map(0xe0800000, 0xe0bfffff).ram().share("vram"); // framebuffer?
map(0xfff00000, 0xfff3ffff).r(m_flash, FUNC(amd_28f020_device::read)); // mirror?
}
static void jazz_scsi_devices(device_slot_interface &device)
{
device.option_add("harddisk", NSCSI_HARDDISK);
device.option_add("cdrom", NSCSI_CDROM);
}
void jazz_state::jazz(machine_config &config)
{
m_maincpu->set_addrmap(AS_PROGRAM, &jazz_state::jazz_common_map);
RAM(config, m_ram, 0);
m_ram->set_default_size("8M");
m_ram->set_extra_options("16M,32M,64M,128M,256M");
m_ram->set_default_value(0);
// FIXME: may require big and little endian variants
JAZZ_MCT_ADR(config, m_mct_adr, 0);
// scsi bus and devices
NSCSI_BUS(config, m_scsibus, 0);
nscsi_connector &harddisk(NSCSI_CONNECTOR(config, "scsi:0", 0));
jazz_scsi_devices(harddisk);
harddisk.set_default_option("harddisk");
nscsi_connector &cdrom(NSCSI_CONNECTOR(config, "scsi:6", 0));
jazz_scsi_devices(cdrom);
cdrom.set_default_option("cdrom");
jazz_scsi_devices(NSCSI_CONNECTOR(config, "scsi:1", 0));
jazz_scsi_devices(NSCSI_CONNECTOR(config, "scsi:2", 0));
jazz_scsi_devices(NSCSI_CONNECTOR(config, "scsi:3", 0));
jazz_scsi_devices(NSCSI_CONNECTOR(config, "scsi:4", 0));
jazz_scsi_devices(NSCSI_CONNECTOR(config, "scsi:5", 0));
// scsi host adapter
nscsi_connector &adapter(NSCSI_CONNECTOR(config, "scsi:7", 0));
adapter.option_add_internal("host", NCR53C90A);
adapter.set_default_option("host");
adapter.set_fixed(true);
N82077AA(config, m_fdc, 24_MHz_XTAL);
MC146818(config, m_rtc, 32.768_kHz_XTAL);
NVRAM(config, m_nvram, nvram_device::DEFAULT_ALL_0);
AMD_28F020(config, m_flash);
// pc keyboard controller?
pc_kbdc_device &kbdc(PC_KBDC(config, "pc_kbdc", 0));
kbdc.out_clock_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_clk_w));
kbdc.out_data_cb().set(m_kbdc, FUNC(at_keyboard_controller_device::kbd_data_w));
// keyboard port
pc_kbdc_slot_device &kbd(PC_KBDC_SLOT(config, "kbd", 0));
pc_at_keyboards(kbd);
kbd.set_default_option(STR_KBD_IBM_PC_AT_84);
kbd.set_pc_kbdc_slot(&kbdc);
// at keyboard controller
AT_KEYBOARD_CONTROLLER(config, m_kbdc, 12_MHz_XTAL);
m_kbdc->hot_res().set_inputline(m_maincpu, INPUT_LINE_RESET);
m_kbdc->kbd_clk().set(kbdc, FUNC(pc_kbdc_device::clock_write_from_mb));
m_kbdc->kbd_data().set(kbdc, FUNC(pc_kbdc_device::data_write_from_mb));
G364(config, m_ramdac, 0);
}
void jazz_state::mmr4000be(machine_config &config)
{
R4000BE(config, m_maincpu, 50_MHz_XTAL);
jazz(config);
DP83932C_BE(config, m_network, 20_MHz_XTAL);
}
void jazz_state::mmr4000le(machine_config &config)
{
R4000LE(config, m_maincpu, 50_MHz_XTAL);
jazz(config);
DP83932C_LE(config, m_network, 20_MHz_XTAL);
}
ROM_START(mmr4000be)
ROM_REGION32_BE(0x40000, "flash", 0)
ROM_SYSTEM_BIOS(0, "riscos", "R4000 RISC/os PROM")
ROMX_LOAD("riscos.bin", 0x00000, 0x40000, CRC(cea6bc8f) SHA1(3e47b4ad5d1a0c7aac649e6aef3df1bf86fc938b), ROM_BIOS(0))
ROM_END
ROM_START(mmr4000le)
ROM_REGION32_LE(0x40000, "flash", 0)
ROM_SYSTEM_BIOS(0, "ntprom", "R4000 Windows NT PROM")
ROMX_LOAD("ntprom.bin", 0x00000, 0x40000, CRC(d91018d7) SHA1(316de17820192c89b8ee6d9936ab8364a739ca53), ROM_BIOS(0))
ROM_END
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1992, mmr4000be, 0, 0, mmr4000be, 0, jazz_state, init_common, "MIPS", "Magnum R4000 (big)", MACHINE_IS_SKELETON)
COMP( 1992, mmr4000le, 0, 0, mmr4000le, 0, jazz_state, init_common, "MIPS", "Magnum R4000 (little)", MACHINE_IS_SKELETON)
|