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n8080: move pcb notes to top of driver

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hap 2021-09-02 22:47:55 +02:00
parent 8f06891446
commit 26db143614
1 changed files with 146 additions and 135 deletions
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281
src/mame/drivers/n8080.cpp
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@ -4,19 +4,136 @@
Nintendo 8080 hardware
- Space Fever
- Space Fever High Splitter (aka SF-Hisplitter)
- Space Launcher
- Sheriff / Bandido / Western Gun 2
- Helifire
- Space Fever
- Space Fever High Splitter (aka SF-Hisplitter)
- Space Launcher
- Sheriff / Bandido / Western Gun 2
- Helifire
TODO:
- space fever original hw is monochrome
----------------------------------------------------------------------------
Space Fever (3 sets, Space Fever?, High Splitter?, Space Launcher?)
Nintendo, 1979
Note: These are all simple ROM swaps on a standard b/w Space Fever PCB.
PCB Layouts
-----------
Top Board (Sound PCB)
TSF-SOU
|----------------------------------------------------|
| VR3 VR2 VR1 |
| 8035 74123 |
| 74275 |
| 6MHz |
| 74123 SN76477 |
| SF_SOUND.IC2 74275 |
| |
| 7405 |
| |
|----------------------------------------------------|
Notes:
All IC's shown.
There is no AMP on the PCB, sound amplification is done via a small external AMP board.
ROM IC2 is a 2708 EPROM.
VR1: master volume
VR2: shoot volume
VR3: music volume
8035 clocks: pins 2 and 3 measure 6.000MHz
pin 9 measures 399.256kHz
pin 12 measures 200.0kHz
pin 13 measures 105.0kHz
pin 21 measures 399.4Khz
pin 22 measures 400.0kHz
pin 23 measures 399.3kHz
pin 24 measures 399.3kHz
pin 39 measures 61.5627Hz
Middle board
------------
TSF-I/O PI-500803
|----------------------------------------------------|
| |
| VR1 |
| 20.160MHz |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| DSW1(8) |
| |
| |
| |
| |
| |
|----------------------------------------------------|
Notes:
VR1: adjusts brightness
Board contains mostly logic ICs (not shown)
Video output is b/w, the harness is wired to a JAMMA fingerboard but only blue is used.
Bottom board
------------
TSF-CPU PI-500802
|----------------------------------------------------|
| |
| |
| |
| SF_F1.F1 SF_G1.G1 SF_H1.H1 SF_I1.I1 |
| |
| 8080 |
| |
| SF_F2.F2 SF_G2.G2 SF_H2.H2 SF_I2.I2 |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| 4116 4116 4116 4116 4116 4116 4116 4116 |
|----------------------------------------------------|
Notes:
All ROMs are 2708, 1K x8
4116: 2K x8 DRAM
8080 clock: 2.0160MHz (20.160 / 10)
Sync: no V reading, H is 15.57kHz
Set 1 is on the PCB and is complete.
Some ROMs in set1 match the current sfeverbw set.
The other two sets were supplied as just EPROMs.
Set2 (maybe High Splitter) is missing the ROM at location I2. Might be missing, or maybe
just the program is smaller and the extra ROM was not required.
***************************************************************************/
#include "emu.h"
#include "includes/n8080.h"
#define MASTER_CLOCK XTAL(20'160'000)
// Shifter circuit done with TTL
void n8080_state::n8080_shift_bits_w(uint8_t data)
{
@ -28,12 +145,12 @@ void n8080_state::n8080_shift_data_w(uint8_t data)
m_shift_data = (m_shift_data >> 8) | (data << 8);
}
uint8_t n8080_state::n8080_shift_r()
{
return m_shift_data >> (8 - m_shift_bits);
}
void n8080_state::main_cpu_map(address_map &map)
{
map.global_mask(0x7fff);
@ -41,7 +158,6 @@ void n8080_state::main_cpu_map(address_map &map)
map(0x4000, 0x7fff).ram().share("videoram");
}
void helifire_state::main_cpu_map(address_map &map)
{
map(0x0000, 0x3fff).rom();
@ -66,7 +182,7 @@ void n8080_state::main_io_map(address_map &map)
}
/* Input ports */
// Input ports
static INPUT_PORTS_START( spacefev )
PORT_START("IN0")
@ -431,13 +547,13 @@ static INPUT_PORTS_START( helifire )
INPUT_PORTS_END
/* Interrupts */
// Interrupts
TIMER_DEVICE_CALLBACK_MEMBER(n8080_state::rst1_tick)
{
int state = m_inte ? ASSERT_LINE : CLEAR_LINE;
/* V7 = 1, V6 = 0 */
// V7 = 1, V6 = 0
m_maincpu->set_input_line_and_vector(INPUT_LINE_IRQ0, state, 0xcf); // I8080
}
@ -445,7 +561,7 @@ TIMER_DEVICE_CALLBACK_MEMBER(n8080_state::rst2_tick)
{
int state = m_inte ? ASSERT_LINE : CLEAR_LINE;
/* vblank */
// vblank
m_maincpu->set_input_line_and_vector(INPUT_LINE_IRQ0, state, 0xd7); // I8080
}
@ -458,11 +574,14 @@ void n8080_state::n8080_status_callback(uint8_t data)
{
if (data & i8080_cpu_device::STATUS_INTA)
{
/* interrupt acknowledge */
// interrupt acknowledge
m_maincpu->set_input_line(INPUT_LINE_IRQ0, CLEAR_LINE);
}
}
// Machine start/reset
void n8080_state::machine_start()
{
save_item(NAME(m_shift_data));
@ -503,10 +622,12 @@ void helifire_state::machine_reset()
}
// Machine configs
void spacefev_state::spacefev(machine_config &config)
{
/* basic machine hardware */
I8080(config, m_maincpu, MASTER_CLOCK / 10);
I8080(config, m_maincpu, XTAL(20'160'000) / 10);
m_maincpu->out_status_func().set(FUNC(spacefev_state::n8080_status_callback));
m_maincpu->out_inte_func().set(FUNC(spacefev_state::n8080_inte_callback));
m_maincpu->set_addrmap(AS_PROGRAM, &spacefev_state::main_cpu_map);
@ -529,11 +650,10 @@ void spacefev_state::spacefev(machine_config &config)
spacefev_sound(config);
}
void sheriff_state::sheriff(machine_config &config)
{
/* basic machine hardware */
I8080(config, m_maincpu, MASTER_CLOCK / 10);
I8080(config, m_maincpu, XTAL(20'160'000) / 10);
m_maincpu->out_status_func().set(FUNC(sheriff_state::n8080_status_callback));
m_maincpu->out_inte_func().set(FUNC(sheriff_state::n8080_inte_callback));
m_maincpu->set_addrmap(AS_PROGRAM, &sheriff_state::main_cpu_map);
@ -571,7 +691,7 @@ void sheriff_state::westgun2(machine_config &config)
void helifire_state::helifire(machine_config &config)
{
/* basic machine hardware */
I8080(config, m_maincpu, MASTER_CLOCK / 10);
I8080(config, m_maincpu, XTAL(20'160'000) / 10);
m_maincpu->out_status_func().set(FUNC(helifire_state::n8080_status_callback));
m_maincpu->out_inte_func().set(FUNC(helifire_state::n8080_inte_callback));
m_maincpu->set_addrmap(AS_PROGRAM, &helifire_state::main_cpu_map);
@ -596,119 +716,7 @@ void helifire_state::helifire(machine_config &config)
}
/*
Space Fever (3 sets, Space Fever?, High Splitter?, Space Launcher?)
Nintendo, 1979
Note: These are all simple ROM swaps on a standard b/w Space Fever PCB.
PCB Layouts
-----------
Top Board (Sound PCB)
TSF-SOU
|----------------------------------------------------|
| VR3 VR2 VR1 |
| 8035 74123 |
| 74275 |
| 6MHz |
| 74123 SN76477 |
| SF_SOUND.IC2 74275 |
| |
| 7405 |
| |
|----------------------------------------------------|
Notes:
All IC's shown.
There is no AMP on the PCB, sound amplification is done via a small external AMP board.
ROM IC2 is a 2708 EPROM.
VR1: master volume
VR2: shoot volume
VR3: music volume
8035 clocks: pins 2 and 3 measure 6.000MHz
pin 9 measures 399.256kHz
pin 12 measures 200.0kHz
pin 13 measures 105.0kHz
pin 21 measures 399.4Khz
pin 22 measures 400.0kHz
pin 23 measures 399.3kHz
pin 24 measures 399.3kHz
pin 39 measures 61.5627Hz
Middle board
------------
TSF-I/O PI-500803
|----------------------------------------------------|
| |
| VR1 |
| 20.160MHz |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| DSW1(8) |
| |
| |
| |
| |
| |
|----------------------------------------------------|
Notes:
VR1: adjusts brightness
Board contains mostly logic ICs (not shown)
Video output is b/w, the harness is wired to a JAMMA fingerboard but only blue is used.
Bottom board
------------
TSF-CPU PI-500802
|----------------------------------------------------|
| |
| |
| |
| SF_F1.F1 SF_G1.G1 SF_H1.H1 SF_I1.I1 |
| |
| 8080 |
| |
| SF_F2.F2 SF_G2.G2 SF_H2.H2 SF_I2.I2 |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| 4116 4116 4116 4116 4116 4116 4116 4116 |
|----------------------------------------------------|
Notes:
All ROMs are 2708, 1K x8
4116: 2K x8 DRAM
8080 clock: 2.0160MHz (20.160 / 10)
Sync: no V reading, H is 15.57kHz
Set 1 is on the PCB and is complete.
Some ROMs in set1 match the current sfeverbw set.
The other two sets were supplied as just EPROMs.
Set2 (maybe High Splitter) is missing the ROM at location I2. Might be missing, or maybe
just the program is smaller and the extra ROM was not required.
*/
// ROM definitions
ROM_START( spacefev )
ROM_REGION( 0x8000, "maincpu", 0 )
@ -922,15 +930,18 @@ ROM_START( helifirea )
ROM_END
GAME( 1979, spacefev, 0, spacefev, spacefev, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever (New Ver.)", MACHINE_SUPPORTS_SAVE )
GAME( 1979, spacefevo, spacefev, spacefev, spacefev, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever (Old Ver.)", MACHINE_SUPPORTS_SAVE )
GAME( 1979, spacefevo2, spacefev, spacefev, spacefev, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever (Older Ver.)", MACHINE_SUPPORTS_SAVE )
// YEAR, NAME, PARENT, MACHINE, INPUT, CLASS, INIT, MONITOR, COMPANY, FULLNAME, FLAGS
GAME( 1979, spacefev, 0, spacefev, spacefev, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever (new version)", MACHINE_SUPPORTS_SAVE )
GAME( 1979, spacefevo, spacefev, spacefev, spacefev, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever (old version)", MACHINE_SUPPORTS_SAVE )
GAME( 1979, spacefevo2, spacefev, spacefev, spacefev, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever (older version)", MACHINE_SUPPORTS_SAVE )
GAME( 1979, highsplt, 0, spacefev, highsplt, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever High Splitter (set 1)", MACHINE_SUPPORTS_SAVE ) // known as "SF-Hisplitter" on its flyer
GAME( 1979, highsplta, highsplt, spacefev, highsplt, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever High Splitter (set 2)", MACHINE_SUPPORTS_SAVE ) // known as "SF-Hisplitter" on its flyer
GAME( 1979, highspltb, highsplt, spacefev, highsplt, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever High Splitter (alt Sound)", MACHINE_SUPPORTS_SAVE ) // known as "SF-Hisplitter" on its flyer
GAME( 1979, highsplta, highsplt, spacefev, highsplt, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever High Splitter (set 2)", MACHINE_SUPPORTS_SAVE ) // "
GAME( 1979, highspltb, highsplt, spacefev, highsplt, spacefev_state, empty_init, ROT270, "Nintendo", "Space Fever High Splitter (alt sound)", MACHINE_SUPPORTS_SAVE ) // "
GAME( 1979, spacelnc, 0, spacefev, spacelnc, spacefev_state, empty_init, ROT270, "Nintendo", "Space Launcher", MACHINE_SUPPORTS_SAVE )
GAME( 1979, sheriff, 0, sheriff, sheriff, sheriff_state, empty_init, ROT270, "Nintendo", "Sheriff", MACHINE_SUPPORTS_SAVE )
GAME( 1980, bandido, sheriff, sheriff, bandido, sheriff_state, empty_init, ROT270, "Nintendo (Exidy license)", "Bandido", MACHINE_SUPPORTS_SAVE )
GAME( 1980, westgun2, sheriff, westgun2, westgun2, sheriff_state, empty_init, ROT270, "Nintendo (Taito Corporation license)", "Western Gun Part II", MACHINE_SUPPORTS_SAVE ) // official Taito PCBs, but title/copyright not shown
GAME( 1980, helifire, 0, helifire, helifire, helifire_state, empty_init, ROT270, "Nintendo", "HeliFire (set 1)", MACHINE_IMPERFECT_SOUND | MACHINE_IMPERFECT_GRAPHICS | MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
GAME( 1980, helifirea, helifire, helifire, helifire, helifire_state, empty_init, ROT270, "Nintendo", "HeliFire (set 2)", MACHINE_IMPERFECT_SOUND | MACHINE_IMPERFECT_GRAPHICS | MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )