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author Patrick Mackinlay <pmackinlay@hotmail.com>2022-04-07 09:13:39 +0700
committer Patrick Mackinlay <pmackinlay@hotmail.com>2022-04-07 09:13:39 +0700
commit3c76a688d313f00ff4fd4a5bcb5158d2040f21f1 (patch)
tree558d27a33c8a1380c3fe117907ca6b7f95b66722
parenta7b25315a9acb0a95300a38f0e1387873b8213dc (diff)
New machines marked as NOT_WORKING
--- Signetics SMVME2000 [Plamen Mihaylov]
-rw-r--r--scripts/src/bus.lua2
-rw-r--r--src/devices/bus/vme/vme_smvme2000.cpp138
-rw-r--r--src/devices/bus/vme/vme_smvme2000.h54
-rw-r--r--src/mame/drivers/sys1121.cpp20
4 files changed, 205 insertions, 9 deletions
diff --git a/scripts/src/bus.lua b/scripts/src/bus.lua
index 7cbe7a73c6d..96cd8fffcde 100644
--- a/scripts/src/bus.lua
+++ b/scripts/src/bus.lua
@@ -2406,6 +2406,8 @@ if (BUSES["VME"]~=null) then
MAME_DIR .. "src/devices/bus/vme/vme_fcscsi.h",
MAME_DIR .. "src/devices/bus/vme/vme_hcpu30.cpp",
MAME_DIR .. "src/devices/bus/vme/vme_hcpu30.h",
+ MAME_DIR .. "src/devices/bus/vme/vme_smvme2000.cpp",
+ MAME_DIR .. "src/devices/bus/vme/vme_smvme2000.h",
}
end
diff --git a/src/devices/bus/vme/vme_smvme2000.cpp b/src/devices/bus/vme/vme_smvme2000.cpp
new file mode 100644
index 00000000000..ddce242739a
--- /dev/null
+++ b/src/devices/bus/vme/vme_smvme2000.cpp
@@ -0,0 +1,138 @@
+// license:BSD-3-Clause
+// copyright-holders:Patrick Mackinlay
+
+/*
+ * Signetics SMVME2000 VMEbus CPU Module
+ *
+ * Probably also sold as the Motorola MVME115M with different firmware, 68010 and MMU.
+ *
+ * Sources:
+ * - http://bitsavers.org/components/signetics/_dataBooks/1986_Signetics_Microprocessor.pdf
+ *
+ * TODO:
+ * - interrupts and configuration
+ * - VME interface
+ * - MMU
+ */
+
+#include "emu.h"
+#include "vme_smvme2000.h"
+
+#define VERBOSE 0
+#include "logmacro.h"
+
+DEFINE_DEVICE_TYPE(VME_SMVME2000, vme_smvme2000_device, "smvme2000", "Signetics SMVME2000")
+
+vme_smvme2000_device::vme_smvme2000_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock)
+ : device_t(mconfig, VME_SMVME2000, tag, owner, clock)
+ , device_vme_card_interface(mconfig, *this)
+ , m_cpu(*this, "cpu")
+ //, m_mmu(*this, "mmu")
+ , m_duart(*this, "duart")
+ , m_pit(*this, "pit")
+ , m_serial(*this, "serial%u", 0U)
+ , m_fail(*this, "fail")
+ , m_eprom(*this, "eprom")
+ , m_ram(*this, "ram")
+{
+}
+
+ROM_START(smvme2000)
+ ROM_REGION16_BE(0x10000, "eprom", 0)
+ ROM_SYSTEM_BIOS(0, "v11", "SIGbug Version 1.1 Copyright 1983 Signetics")
+ ROMX_LOAD("sigbug__1.bin", 0x0000, 0x4000, CRC(ae23c2c3) SHA1(da422ca03ac77d9aed2067f1099ec0fb96939fc8), ROM_SKIP(1) | ROM_BIOS(0))
+ ROMX_LOAD("sigbug__2.bin", 0x0001, 0x4000, CRC(e39bd1db) SHA1(2f610170f118c74477f4586e19aee0fc63803e17), ROM_SKIP(1) | ROM_BIOS(0))
+ ROMX_LOAD("sigbug__3.bin", 0x8000, 0x4000, CRC(182998ef) SHA1(ecf980b7dd8bd0286f002b31cd726798f84a2267), ROM_SKIP(1) | ROM_BIOS(0))
+ ROMX_LOAD("sigbug__4.bin", 0x8001, 0x4000, CRC(f0e25380) SHA1(78427f7b9a6f676945c2cdb90632a16a619c83f9), ROM_SKIP(1) | ROM_BIOS(0))
+ROM_END
+
+static INPUT_PORTS_START(smvme2000)
+INPUT_PORTS_END
+
+const tiny_rom_entry *vme_smvme2000_device::device_rom_region() const
+{
+ return ROM_NAME(smvme2000);
+}
+
+ioport_constructor vme_smvme2000_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME(smvme2000);
+}
+
+void vme_smvme2000_device::device_start()
+{
+ m_fail.resolve();
+}
+
+void vme_smvme2000_device::device_reset()
+{
+ /*
+ * FIXME: EPROM is mapped at the start of memory during reset to allow the
+ * CPU to fetch the stack pointer and initial PC. The exact mechanism used
+ * is unknown; current emulation unmaps the EPROM and maps RAM when the last
+ * two bytes of the reset vector are fetched.
+ */
+ m_cpu->space(AS_PROGRAM).install_rom(0, m_eprom.bytes() - 1, m_eprom.target());
+
+ m_boot = m_cpu->space(AS_PROGRAM).install_read_tap(0x000006, 0x000007, "boot",
+ [this](offs_t offset, u16 &data, u16 mem_mask)
+ {
+ if (!machine().side_effects_disabled())
+ {
+ m_cpu->space(AS_PROGRAM).unmap_readwrite(0, m_eprom.bytes() - 1);
+ m_cpu->space(AS_PROGRAM).install_ram(0, m_ram.bytes() - 1, m_ram.target());
+
+ m_boot.remove();
+ }
+ });
+}
+
+void vme_smvme2000_device::device_add_mconfig(machine_config &config)
+{
+ M68000(config, m_cpu, 16_MHz_XTAL / 2);
+ m_cpu->set_addrmap(AS_PROGRAM, &vme_smvme2000_device::cpu_mem);
+ m_cpu->set_addrmap(m68000_base_device::AS_CPU_SPACE, &vme_smvme2000_device::cpu_int);
+
+ SCN2681(config, m_duart, 3.6864_MHz_XTAL);
+ m_duart->irq_cb().set(m_pit, FUNC(pit68230_device::h3_w)); // TODO: verify destination
+
+ PIT68230(config, m_pit, 0);
+ m_pit->pc_out_callback().set(
+ [this](u8 data)
+ {
+ m_fail = BIT(data, 4);
+ });
+ m_pit->port_irq_callback().set_inputline(m_cpu, M68K_IRQ_5); // TODO: verify destination
+
+ RS232_PORT(config, m_serial[0], default_rs232_devices, nullptr);
+ RS232_PORT(config, m_serial[1], default_rs232_devices, nullptr);
+
+ // TODO: dsr, dtr
+ m_duart->a_tx_cb().set(m_serial[0], FUNC(rs232_port_device::write_txd));
+ m_duart->b_tx_cb().set(m_serial[1], FUNC(rs232_port_device::write_txd));
+ m_serial[0]->rxd_handler().set(m_duart, FUNC(scn2681_device::rx_a_w));
+ m_serial[1]->rxd_handler().set(m_duart, FUNC(scn2681_device::rx_b_w));
+}
+
+void vme_smvme2000_device::cpu_mem(address_map &map)
+{
+ map(0x000000, 0x000fff).ram().share("ram");
+
+ //map(0x010000, 0xf6ffff); // VMEbus memory address space
+ map(0xf70000, 0xf7ffff).rom().region("eprom", 0);
+ //map(0xf80000, 0xf8003f); // MMU
+ map(0xf81000, 0xf8103f).rw(m_pit, FUNC(pit68230_device::read), FUNC(pit68230_device::write)).umask16(0x00ff);
+ map(0xf82000, 0xf8201f).rw(m_duart, FUNC(scn2681_device::read), FUNC(scn2681_device::write)).umask16(0x00ff);
+ //map(0xf90000, 0xf9ffff).mirror(0x060000); // VMEbus short I/O space
+}
+
+void vme_smvme2000_device::cpu_int(address_map &map)
+{
+ map(0xfffff3, 0xfffff3).lr8(NAME([]() { return m68000_base_device::autovector(1); }));
+ map(0xfffff5, 0xfffff5).lr8(NAME([]() { return m68000_base_device::autovector(2); }));
+ map(0xfffff7, 0xfffff7).lr8(NAME([]() { return m68000_base_device::autovector(3); }));
+ map(0xfffff9, 0xfffff9).lr8(NAME([]() { return m68000_base_device::autovector(4); }));
+ map(0xfffffb, 0xfffffb).lr8(NAME([]() { return m68000_base_device::autovector(5); })); // TODO: m_pit->irq_piack()?
+ map(0xfffffd, 0xfffffd).lr8(NAME([]() { return m68000_base_device::autovector(6); }));
+ map(0xffffff, 0xffffff).lr8(NAME([]() { return m68000_base_device::autovector(7); }));
+}
diff --git a/src/devices/bus/vme/vme_smvme2000.h b/src/devices/bus/vme/vme_smvme2000.h
new file mode 100644
index 00000000000..cffea3cb469
--- /dev/null
+++ b/src/devices/bus/vme/vme_smvme2000.h
@@ -0,0 +1,54 @@
+// license:BSD-3-Clause
+// copyright-holders:Patrick Mackinlay
+
+#ifndef MAME_BUS_VME_SMVME2000_H
+#define MAME_BUS_VME_SMVME2000_H
+
+#pragma once
+
+#include "bus/vme/vme.h"
+
+#include "cpu/m68000/m68000.h"
+//#include "machine/m68451.h"
+#include "machine/mc68681.h"
+#include "machine/68230pit.h"
+
+#include "bus/rs232/rs232.h"
+
+class vme_smvme2000_device
+ : public device_t
+ , public device_vme_card_interface
+{
+public:
+ vme_smvme2000_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock);
+
+protected:
+ // device_t overrides
+ virtual const tiny_rom_entry *device_rom_region() const override;
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual ioport_constructor device_input_ports() const override;
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+private:
+ void cpu_mem(address_map &map);
+ void cpu_int(address_map &map);
+
+ required_device<m68000_device> m_cpu;
+ //optional_device<m68451_device> m_mmu;
+ required_device<scn2681_device> m_duart;
+ required_device<pit68230_device> m_pit;
+
+ required_device_array<rs232_port_device, 2> m_serial;
+
+ output_finder<> m_fail;
+
+ required_region_ptr<u16> m_eprom;
+ required_shared_ptr<u16> m_ram;
+
+ memory_passthrough_handler m_boot;
+};
+
+DECLARE_DEVICE_TYPE(VME_SMVME2000, vme_smvme2000_device)
+
+#endif // MAME_BUS_VME_SMVME2000_H
diff --git a/src/mame/drivers/sys1121.cpp b/src/mame/drivers/sys1121.cpp
index e43dcb8374e..398ce67cdd9 100644
--- a/src/mame/drivers/sys1121.cpp
+++ b/src/mame/drivers/sys1121.cpp
@@ -10,6 +10,7 @@
#include "emu.h"
#include "bus/vme/vme_mvme120.h"
+#include "bus/vme/vme_smvme2000.h"
#include "logmacro.h"
namespace
@@ -29,25 +30,26 @@ namespace
static INPUT_PORTS_START(sys1121)
INPUT_PORTS_END
- static void mvme120_vme_cards(device_slot_interface &device)
+ static void sys1121_vme_cards(device_slot_interface &device)
{
device.option_add("mvme120", VME_MVME120);
device.option_add("mvme121", VME_MVME121);
device.option_add("mvme122", VME_MVME122);
device.option_add("mvme123", VME_MVME123);
+ device.option_add("smvme2000", VME_SMVME2000);
}
void sys1121_state::sys1121(machine_config &config)
{
VME(config, "vme", 0);
- VME_SLOT(config, "slot1", mvme120_vme_cards, "mvme120", 1, "vme");
- VME_SLOT(config, "slot2", mvme120_vme_cards, nullptr, 2, "vme");
- VME_SLOT(config, "slot3", mvme120_vme_cards, nullptr, 3, "vme");
- VME_SLOT(config, "slot4", mvme120_vme_cards, nullptr, 4, "vme");
- VME_SLOT(config, "slot5", mvme120_vme_cards, nullptr, 5, "vme");
- VME_SLOT(config, "slot6", mvme120_vme_cards, nullptr, 6, "vme");
- VME_SLOT(config, "slot7", mvme120_vme_cards, nullptr, 7, "vme");
- VME_SLOT(config, "slot8", mvme120_vme_cards, nullptr, 8, "vme");
+ VME_SLOT(config, "slot1", sys1121_vme_cards, "mvme120", 1, "vme");
+ VME_SLOT(config, "slot2", sys1121_vme_cards, nullptr, 2, "vme");
+ VME_SLOT(config, "slot3", sys1121_vme_cards, nullptr, 3, "vme");
+ VME_SLOT(config, "slot4", sys1121_vme_cards, nullptr, 4, "vme");
+ VME_SLOT(config, "slot5", sys1121_vme_cards, nullptr, 5, "vme");
+ VME_SLOT(config, "slot6", sys1121_vme_cards, nullptr, 6, "vme");
+ VME_SLOT(config, "slot7", sys1121_vme_cards, nullptr, 7, "vme");
+ VME_SLOT(config, "slot8", sys1121_vme_cards, nullptr, 8, "vme");
}
// This is a VME chassis so any ROMs are contained in the cards.