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-rw-r--r--src/mame/drivers/ncdppc.cpp126
1 files changed, 126 insertions, 0 deletions
diff --git a/src/mame/drivers/ncdppc.cpp b/src/mame/drivers/ncdppc.cpp
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index 00000000000..c6e7bac842b
--- /dev/null
+++ b/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 )