Add a skeleton for DASH4 Debug Adapter for SH CPUs

src/mame/mame.lst

@@ -42011,6 +42011,9 @@ d461                            //
 @source:skeleton/daruma.cpp
 ds348                           // Sigtron Daruma
 
+@source:skeleton/dash4.cpp
+dash4                           // (c) 1999 Cross Products Ltd.
+
 @source:skeleton/datacast.cpp
 datacast                        //
 

src/mame/skeleton/dash4.cpp

@@ -0,0 +1,88 @@
+// license:BSD-3-Clause
+// copyright-holders:
+/***********************************************************************************************************
+Skeleton driver for Cross Products Ltd. DASH4 Debug Adapter.
+
+DASH4 is the hardware debug adapter of CodeScape development environment for the Hitachi SuperH family of
+microprocessors.
+It's an intelligent debug pod that offers a complete low-level debug capability. The DASH4 uses the JTAG
+interface to communicate with the target at 1.5 Mbytes/s via the Hitachi User Debug Interface (HUDI)
+built-in to the SH7750. The DASH4 connects to the host computer via Ethernet to allow high-speed
+communications with the debugging software.
+
+The CodeScape Development system encompasses both software tools and hardware interfaces to provide
+development support for Hitachi SH microprocessors from initial low-level system troubleshooting through
+to the development of complex applications in C++.
+
+It came bundled with the Altera Design Software for PCs "Quartus II":
+https://archive.org/details/altera-quartus-ii-version-2.2-manuals-software/
+
+Also, it came with a MemoHASP-1 parallel port security dongle labeled:
+"MemoHASP-1 R3b CCYRW NA 23967", "HASP ID= 75BB4C39", "SH4".
+
+DASH4 Rev. B PCB (1999):
+      ____________________________________________________________________
+     |                                  _____________       ______       |
+     |     ____________         Xtal    |NEC         |     |LT1129       |___
+     |    |Altera     |      11.059MHz  |D4564323G5__|     |_____|          _|__
+    _|_   |Flex       |  __________              __________  __________     |   | <- Power
+    | | EPF10K10TC144-3 |_CY2292F_|  __________  S32XR861Q1  S32XR861Q1     |___|
+    | |   |           |              S32XR861Q1                              |
+    | |   |___________|            _________         _________     ___       |
+I/O | |  _______   ____________   |74HCT244|        |_HCT374A|    93LC56B  O <- Yellow LED
+    | | |_P92AB|  |SH-2       |   ________                    _________    O <- Green LED
+    | |  _______  |HD6417604F28  |AS29F040   ________        Crystal LAN    _|___
+    |_| |_P92AB|  |           |  |       |  |GAL22V10D       |CT8900A-IQ    |   |
+     |   _______  |           |  |_______|  |       |        |         |    |   | <- LAN RJ45
+     |  |74HCT138 |___________|             |_______|        |_________|    |___|
+     |_____            __                                   __            ___|
+           |___________| |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_| |___________|
+                            Unused edge connector
+
+***********************************************************************************************************/
+
+#include "emu.h"
+#include "cpu/sh/sh7604.h"
+
+
+namespace {
+
+class dash4_state : public driver_device
+{
+public:
+	dash4_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag)
+		, m_maincpu(*this, "maincpu")
+	{ }
+
+
+	void dash4(machine_config &config);
+
+private:
+	required_device<cpu_device> m_maincpu;
+};
+
+
+static INPUT_PORTS_START(dash4)
+INPUT_PORTS_END
+
+void dash4_state::dash4(machine_config &config)
+{
+	SH7604(config, m_maincpu, 11'059'000); // Actually an Hitachi SH-2 HD6417604F28
+}
+
+
+ROM_START(dash4)
+	ROM_REGION(0x80000, "maincpu", 0)
+	ROM_LOAD( "as29f040.u2",       0x00000, 0x80000, CRC(507c2a4c) SHA1(7eea8acf196a6c249fda5fe41b197070d426cffc) )
+
+	ROM_REGION(0x00100, "eeprom", 0)
+	ROM_LOAD( "93lc56b.u17",       0x00000, 0x00100, CRC(a05ee68a) SHA1(5dd120cb4a818826ebec8bde59225ccdbf28a57d) )
+
+	ROM_REGION(0x002e5, "pld", 0)
+	ROM_LOAD( "gal22v10d-15lj.u6", 0x00000, 0x002e5, CRC(80cc0146) SHA1(e28da16e18d0c9de48a08651f1c670f946d188e7) )
+ROM_END
+
+} // anonymous namespace
+
+SYST( 1999, dash4, 0, 0, dash4, dash4, dash4_state, empty_init, "Cross Products", "DASH4 Debug Adapter", MACHINE_IS_SKELETON )