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seicross.cpp: Add raw timing parameters for screen

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This commit is contained in:
AJR 2022-05-11 23:48:31 -04:00
parent 5a129ead17
commit 27bbd4a2c7
1 changed files with 7 additions and 10 deletions
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17
src/mame/drivers/seicross.cpp
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@ -384,12 +384,12 @@ INTERRUPT_GEN_MEMBER(seicross_state::vblank_irq)
void seicross_state::no_nvram(machine_config &config)
{
// Basic machine hardware
Z80(config, m_maincpu, XTAL(18'432'000) / 6); // D780C, 3.072 MHz?
Z80(config, m_maincpu, 18.432_MHz_XTAL / 6); // D780C, 3.072 MHz?
m_maincpu->set_addrmap(AS_PROGRAM, &seicross_state::main_map);
m_maincpu->set_addrmap(AS_IO, &seicross_state::main_portmap);
m_maincpu->set_vblank_int("screen", FUNC(seicross_state::vblank_irq));
NSC8105(config, m_mcu, XTAL(18'432'000) / 6); // ???
NSC8105(config, m_mcu, 18.432_MHz_XTAL / 6); // ???
m_mcu->set_addrmap(AS_PROGRAM, &seicross_state::mcu_no_nvram_map);
config.set_maximum_quantum(attotime::from_hz(1200)); // 20 CPU slices per frame, a high value to ensure proper synchronization of the CPUs
@ -398,10 +398,7 @@ void seicross_state::no_nvram(machine_config &config)
// Video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(60);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not accurate - frames per second, vblank duration
screen.set_size(32*8, 32*8);
screen.set_visarea(0*8, 32*8-1, 2*8, 30*8-1);
screen.set_raw(18.432_MHz_XTAL / 3, 384, 0, 256, 264, 16, 240); // verified from schematics
screen.set_screen_update(FUNC(seicross_state::screen_update));
screen.set_palette(m_palette);
@ -411,7 +408,7 @@ void seicross_state::no_nvram(machine_config &config)
// Sound hardware
SPEAKER(config, "speaker").front_center();
ay8910_device &aysnd(AY8910(config, "aysnd", XTAL(18'432'000) / 12));
ay8910_device &aysnd(AY8910(config, "aysnd", 18.432_MHz_XTAL / 12));
aysnd.port_b_read_callback().set(FUNC(seicross_state::portB_r));
aysnd.port_b_write_callback().set(FUNC(seicross_state::portB_w));
aysnd.add_route(ALL_OUTPUTS, "speaker", 0.25);
@ -427,20 +424,20 @@ void seicross_state::nvram(machine_config &config)
// Basic machine hardware
m_mcu->set_addrmap(AS_PROGRAM, &seicross_state::mcu_nvram_map);
NVRAM(config, "nvram").set_custom_handler(FUNC(seicross_state::nvram_init));
NVRAM(config, "nvram").set_custom_handler(FUNC(seicross_state::nvram_init)); // 5101 + battery
}
void seicross_state::friskytb(machine_config &config)
{
nvram(config);
M6802(config.replace(), m_mcu, XTAL(18'432'000) / 6); // presumed to be an HD46802P or compatible
M6802(config.replace(), m_mcu, 18.432_MHz_XTAL / 6); // presumed to be an HD46802P or compatible
m_mcu->set_addrmap(AS_PROGRAM, &seicross_state::mcu_nvram_map);
}
void seicross_state::sectznt(machine_config &config)
{
no_nvram(config);
M6802(config.replace(), m_mcu, XTAL(18'432'000) / 6); // actually HD46802P
M6802(config.replace(), m_mcu, 18.432_MHz_XTAL / 6); // actually HD46802P
m_mcu->set_addrmap(AS_PROGRAM, &seicross_state::mcu_no_nvram_map);
}