New machines added as MACHINE_NOT_WORKING

Network Computing Devices Explora Pro XQ [R. Belmont, Jonathan Gevaryahu]

scripts/target/mame/mess.lua

@@ -2575,6 +2575,7 @@ createMESSProjects(_target, _subtarget, "ncd")
 files {
 	MAME_DIR .. "src/mame/drivers/ncd17c.cpp",
 	MAME_DIR .. "src/mame/drivers/ncdmips.cpp",
+	MAME_DIR .. "src/mame/drivers/ncdppc.cpp",
 }
 
 createMESSProjects(_target, _subtarget, "ne")

src/mame/drivers/ncdppc.cpp

@@ -0,0 +1,126 @@
+// license:BSD-3-Clause
+// copyright-holders:R. Belmont
+/****************************************************************************
+
+    drivers/ncdppc.cpp
+    NCD PowerPC-based color X terminals
+
+    Hardware (Explora Pro):
+        - PPC 403GA CPU
+        - Custom PCI bridge
+        - AM79C965 (? photos are not conclusive) "PCNet" PCI Ethernet
+        - S3 86C868 Vision868 PCI graphics
+        - National Semiconductor PC87303 PCI "SuperI/O"
+        - PS/2 keyboard port
+
+****************************************************************************/
+
+#include "emu.h"
+#include "bus/rs232/rs232.h"
+#include "cpu/powerpc/ppc.h"
+#include "screen.h"
+
+class ncd_ppc_state : public driver_device
+{
+public:
+	ncd_ppc_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag),
+		m_maincpu(*this, "maincpu"),
+		m_screen(*this, "screen"),
+		m_mainram(*this, "mainram")
+	{
+	}
+
+	void explorapro(machine_config &config);
+	void explorapro_map(address_map &map);
+
+	uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+
+private:
+	virtual void machine_reset() override;
+
+	required_device<cpu_device> m_maincpu;
+	required_device<screen_device> m_screen;
+	optional_shared_ptr<uint32_t> m_mainram;
+
+	DECLARE_READ32_MEMBER(unk_r);
+	DECLARE_WRITE32_MEMBER(tty_w);
+
+	inline void ATTR_PRINTF(3,4) verboselog( int n_level, const char *s_fmt, ... );
+};
+
+
+#define VERBOSE_LEVEL ( 0 )
+
+#define ENABLE_VERBOSE_LOG (0)
+
+inline void ATTR_PRINTF(3,4) ncd_ppc_state::verboselog( int n_level, const char *s_fmt, ... )
+{
+#if ENABLE_VERBOSE_LOG
+	if( VERBOSE_LEVEL >= n_level )
+	{
+		va_list v;
+		char buf[ 32768 ];
+		va_start( v, s_fmt );
+		vsprintf( buf, s_fmt, v );
+		va_end( v );
+		logerror("%s: %s", machine().describe_context(), buf);
+	}
+#endif
+}
+
+void ncd_ppc_state::machine_reset()
+{
+}
+
+uint32_t ncd_ppc_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+	return 0;
+}
+
+READ32_MEMBER(ncd_ppc_state::unk_r)
+{
+	return 0xffffffff;
+}
+
+WRITE32_MEMBER(ncd_ppc_state::tty_w)
+{
+	printf("%c", (data>>24) & 0x7f);
+}
+
+void ncd_ppc_state::explorapro_map(address_map &map)
+{
+	map(0x01000000, 0x3fffffff).ram();
+
+	map(0x740002f8, 0x740002fb).w(FUNC(ncd_ppc_state::tty_w));
+	map(0x740002fc, 0x740002ff).r(FUNC(ncd_ppc_state::unk_r));
+	map(0x7ffc0000, 0x7fffffff).rom().region("maincpu", 0);
+}
+
+void ncd_ppc_state::explorapro(machine_config &config)
+{
+	/* basic machine hardware */
+	PPC403GA(config, m_maincpu, 50000000);
+	m_maincpu->set_addrmap(AS_PROGRAM, &ncd_ppc_state::explorapro_map);
+
+	SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
+	m_screen->set_raw(77.4144_MHz_XTAL, 1376, 0, 1024, 803, 0, 768);
+	m_screen->set_screen_update(FUNC(ncd_ppc_state::screen_update));
+}
+
+static INPUT_PORTS_START( explorapro )
+INPUT_PORTS_END
+
+/***************************************************************************
+
+  ROM definition(s)
+
+***************************************************************************/
+
+ROM_START( explorapro )
+	ROM_REGION(0x40000, "maincpu", 0)
+	ROM_LOAD( "explora__v2.7.6_bm.u37", 0x000000, 0x040000, CRC(038fb1dc) SHA1(036836359f59e70d5bebc50d69083bbe020ddf98) )
+ROM_END
+
+//    YEAR  NAME     PARENT  COMPAT  MACHINE       INPUT    CLASS          INIT               COMPANY                 FULLNAME           FLAGS
+COMP( 1995, explorapro, 0,      0,   explorapro, explorapro, ncd_ppc_state,  empty_init,   "Network Computing Devices", "NCD Explora Pro XQ", MACHINE_NOT_WORKING|MACHINE_NO_SOUND )

src/mame/mame.lst

@@ -29853,6 +29853,9 @@ ncd19                           // 1990 Network Computing Devices
 @source:ncdmips.cpp
 hmxpro                          // 1994 Network Computing Devices
 
+@source:ncdppc.cpp
+explorapro                      // 1995 Network Computing Devices
+
 @source:nds.cpp
 nds                             // 2004 Nintendo