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luna_68k: boots to monitor

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This commit is contained in:
Patrick Mackinlay 2021-10-11 19:06:44 +07:00
parent 751c2806bf
commit c4979ef8d1
1 changed files with 19 additions and 7 deletions
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26
src/mame/drivers/luna_68k.cpp
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@ -22,6 +22,7 @@
* DPU8 video/framebuffer, Bt458 @ 108MHz
* CMC communications (GPIB, Ethernet, serial), 68020 @ 12.5MHz?
*
* This specific machine may be an SX-9100 Model 90?
*/
#include "emu.h"
@ -34,7 +35,6 @@
#include "machine/mc146818.h"
#include "machine/z80sio.h"
#include "machine/am9513.h"
#include "machine/clock.h"
// busses and connectors
#include "bus/rs232/rs232.h"
@ -77,6 +77,14 @@ protected:
void common(machine_config &config);
private:
u32 bus_error_r()
{
if (!machine().side_effects_disabled())
m_cpu->set_input_line(M68K_LINE_BUSERROR, ASSERT_LINE);
return 0;
}
// devices
required_device<m68030_device> m_cpu;
required_device<ram_device> m_ram;
@ -104,12 +112,14 @@ void luna_68k_state::machine_reset()
void luna_68k_state::cpu_map(address_map &map)
{
map(0x30000000, 0x3fffffff).r(FUNC(luna_68k_state::bus_error_r));
map(0x40000000, 0x4001ffff).rom().region("eprom", 0);
map(0x50000000, 0x50000007).rw(m_sio, FUNC(upd7201_device::ba_cd_r), FUNC(upd7201_device::ba_cd_w)).umask32(0xff00ff00);
map(0x58000000, 0x5800007f).rw(m_rtc, FUNC(ds1287_device::read_direct), FUNC(ds1287_device::write_direct)).umask32(0xff00ff00);
map(0x60000000, 0x60000003).rw(m_stc, FUNC(am9513_device::read16), FUNC(am9513_device::write16));
map(0x70000000, 0x70000003).lr32([]() { return 0x00fe0000; }, "sw3"); // FIXME: possibly CPU board DIP switch?
map(0x70000000, 0x70000003).lr32([]() { return 0x000000fc; }, "sw3"); // FIXME: possibly CPU board DIP switch? (1=UP)
map(0x78000000, 0x78000003).lw32(
[this](u32 data) { m_cpu->space(0).install_ram(0, m_ram->mask(), m_ram->pointer()); }, "ram_size"); // FIXME: ram size/enable?
}
@ -144,7 +154,7 @@ void luna_68k_state::luna(machine_config &config)
UPD7201(config, m_sio, 9'830'000); // D9.83B0
// TODO: one of these is for console, other is keyboard
// console
RS232_PORT(config, m_serial[0], default_rs232_devices, "terminal");
m_serial[0]->set_option_device_input_defaults("terminal", DEVICE_INPUT_DEFAULTS_NAME(terminal));
m_sio->out_txda_callback().set(m_serial[0], FUNC(rs232_port_device::write_txd));
@ -153,6 +163,7 @@ void luna_68k_state::luna(machine_config &config)
m_serial[0]->rxd_handler().set(m_sio, FUNC(upd7201_device::rxa_w));
m_serial[0]->cts_handler().set(m_sio, FUNC(upd7201_device::ctsa_w));
// keyboard
RS232_PORT(config, m_serial[1], default_rs232_devices, nullptr);
m_sio->out_txdb_callback().set(m_serial[1], FUNC(rs232_port_device::write_txd));
m_sio->out_dtrb_callback().set(m_serial[1], FUNC(rs232_port_device::write_dtr));
@ -161,19 +172,20 @@ void luna_68k_state::luna(machine_config &config)
m_serial[1]->cts_handler().set(m_sio, FUNC(upd7201_device::ctsb_w));
AM9513(config, m_stc, 9'830'000); // FIXME: clock? sources?
m_stc->fout_cb().set(m_stc, FUNC(am9513_device::gate1_w)); // assumption based on a common configuration
m_stc->out4_cb().set(m_sio, FUNC(upd7201_device::rxca_w));
m_stc->out4_cb().append(m_sio, FUNC(upd7201_device::txca_w));
m_stc->out5_cb().set(m_sio, FUNC(upd7201_device::rxcb_w));
m_stc->out5_cb().append(m_sio, FUNC(upd7201_device::txcb_w));
// HACK: arbitrary input clock for am9513 gate1
clock_device &stc_clock(CLOCK(config, "stc_clock", 1'000'000));
stc_clock.signal_handler().set(m_stc, FUNC(am9513_device::gate1_w));
}
ROM_START(luna)
ROM_REGION32_BE(0x20000, "eprom", 0)
ROM_LOAD16_WORD_SWAP("0283__ac__8117__1.05.ic88", 0x00000, 0x20000, CRC(c46dec54) SHA1(22ef9274f4ef85d446d56cce13a68273dc55f10a))
// HACK: force firmware to reinitialize nvram at first boot
ROM_REGION(64, "rtc", 0)
ROM_FILL(0, 64, 0xff)
ROM_END
} // anonymous namespace