New skeleton ISA16 device: Joincom JC-1310 FDC [Tronix, minuszerodegrees.net]

scripts/src/bus.lua

@@ -1192,6 +1192,8 @@ if (BUSES["ISA"]~=null) then
 		MAME_DIR .. "src/devices/bus/isa/hdc.h",
 		MAME_DIR .. "src/devices/bus/isa/ibm_mfc.cpp",
 		MAME_DIR .. "src/devices/bus/isa/ibm_mfc.h",
+		MAME_DIR .. "src/devices/bus/isa/jc1310.cpp",
+		MAME_DIR .. "src/devices/bus/isa/jc1310.h",
 		MAME_DIR .. "src/devices/bus/isa/mpu401.cpp",
 		MAME_DIR .. "src/devices/bus/isa/mpu401.h",
 		MAME_DIR .. "src/devices/bus/isa/sblaster.cpp",

src/devices/bus/isa/isa_cards.cpp

@@ -36,6 +36,7 @@
 #include "wd1007a.h"
 #include "mcd.h"
 #include "lbaenhancer.h"
+#include "jc1310.h"
 
 // sound
 #include "adlib.h"
@@ -168,4 +169,5 @@ void pc_isa16_cards(device_slot_interface &device)
 	device.option_add("mcd", ISA16_MCD);
 	device.option_add("sad8852", ISA16_SAD8852);
 	device.option_add("wd1007a", WD1007A);
+	device.option_add("jc1310", JC1310);
 }

src/devices/bus/isa/jc1310.cpp

@@ -0,0 +1,55 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+/***************************************************************************
+
+    Joincom Electronic JC-1310 MFM floppy disk controller
+
+***************************************************************************/
+
+#include "emu.h"
+#include "jc1310.h"
+
+#include "cpu/mcs51/mcs51.h"
+
+DEFINE_DEVICE_TYPE(JC1310, isa16_jc1310_device, "jc1310", "Joincom JC-1310 FDC")
+
+isa16_jc1310_device::isa16_jc1310_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
+	: device_t(mconfig, JC1310, tag, owner, clock)
+	, device_isa16_card_interface(mconfig, *this)
+	, m_fdc(*this, "fdc")
+{
+}
+
+void isa16_jc1310_device::device_start()
+{
+}
+
+void isa16_jc1310_device::prog_map(address_map &map)
+{
+	map(0x0000, 0x1fff).rom().region("mcu", 0);
+}
+
+void isa16_jc1310_device::ext_map(address_map &map)
+{
+	map(0xc000, 0xc7ff).ram(); // CXK5816PN-10L
+}
+
+void isa16_jc1310_device::device_add_mconfig(machine_config &config)
+{
+	i8031_device &mcu(I8031(config, "mcu", 10_MHz_XTAL)); // P8031AH
+	mcu.set_addrmap(AS_PROGRAM, &isa16_jc1310_device::prog_map);
+	mcu.set_addrmap(AS_IO, &isa16_jc1310_device::ext_map);
+
+	WD37C65C(config, m_fdc, 16_MHz_XTAL); // WD37C65B-PL
+	//m_fdc->set_clock2(9.6_MHz_XTAL);
+}
+
+ROM_START(jc1310)
+	ROM_REGION(0x2000, "mcu", 0) // "(C) COPYRIGHT JOINCOM ELECTRONIC CORP. 9/16/1988 JC1310"
+	ROM_LOAD("jc-1310 - apr-c 89.u3", 0x0000, 0x2000, CRC(e044f5e1) SHA1(5a32d2001bb1a489657f9488136b5d621f803703)) // TMS 2764-20JL
+ROM_END
+
+const tiny_rom_entry *isa16_jc1310_device::device_rom_region() const
+{
+	return ROM_NAME(jc1310);
+}

src/devices/bus/isa/jc1310.h

@@ -0,0 +1,38 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+/***************************************************************************
+
+    Joincom Electronic JC-1310 MFM floppy disk controller
+
+***************************************************************************/
+
+#ifndef MAME_BUS_ISA_JC1310_H
+#define MAME_BUS_ISA_JC1310_H
+
+#pragma once
+
+#include "isa.h"
+#include "machine/upd765.h"
+
+class isa16_jc1310_device : public device_t, public device_isa16_card_interface
+{
+public:
+	isa16_jc1310_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
+
+	static constexpr feature_type unemulated_features() { return feature::DISK; }
+
+protected:
+	virtual void device_add_mconfig(machine_config &config) override;
+	virtual const tiny_rom_entry *device_rom_region() const override;
+	virtual void device_start() override;
+
+private:
+	void prog_map(address_map &map);
+	void ext_map(address_map &map);
+
+	required_device<wd37c65c_device> m_fdc;
+};
+
+DECLARE_DEVICE_TYPE(JC1310, isa16_jc1310_device)
+
+#endif // MAME_BUS_ISA_JC1310_FDC_H