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-rw-r--r--src/mame/drivers/jonos.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/src/mame/drivers/jonos.c b/src/mame/drivers/jonos.c
new file mode 100644
index 00000000000..4f4a0ad2593
--- /dev/null
+++ b/src/mame/drivers/jonos.c
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+// license:BSD-3-Clause
+// copyright-holders:Robbbert
+/***************************************************************************
+
+ Jonos Escort
+
+ 2013-09-12 Skeleton driver
+
+ This computer is some sort of portable Z80-based system.
+
+ Haven't found any info.
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+
+
+class jonos_state : public driver_device
+{
+public:
+ jonos_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_p_videoram(*this, "videoram")
+ , m_maincpu(*this, "maincpu")
+ { }
+
+ DECLARE_DRIVER_INIT(jonos);
+ UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ required_shared_ptr<UINT8> m_p_videoram;
+private:
+ const UINT8 *m_p_chargen;
+ virtual void machine_reset();
+ virtual void video_start();
+ required_device<cpu_device> m_maincpu;
+};
+
+
+
+static ADDRESS_MAP_START(jonos_mem, AS_PROGRAM, 8, jonos_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x0fff) AM_ROM AM_REGION("roms", 0)
+ AM_RANGE(0x1000, 0x17ff) AM_RAM
+ AM_RANGE(0x1800, 0x1fff) AM_RAM AM_SHARE("videoram")
+ AM_RANGE(0x2000, 0xffff) AM_RAM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( jonos_io, AS_IO, 8, jonos_state)
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( jonos )
+INPUT_PORTS_END
+
+void jonos_state::machine_reset()
+{
+}
+
+void jonos_state::video_start()
+{
+ m_p_chargen = memregion("chargen")->base();
+}
+
+UINT32 jonos_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ UINT8 y,ra,chr,gfx;
+ UINT16 sy=0,ma=0,x;
+
+ for (y = 0; y < 25; y++)
+ {
+ for (ra = 0; ra < 12; ra++)
+ {
+ UINT16 *p = &bitmap.pix16(sy++);
+
+ for (x = ma; x < ma + 80; x++)
+ {
+ chr = m_p_videoram[x];
+
+ if (ra < 8)
+ gfx = m_p_chargen[(chr<<3) | ra ];
+ else
+ gfx = m_p_chargen[(chr<<3) | (ra&7) | 0x400];
+
+ /* Display a scanline of a character */
+ *p++ = BIT(gfx, 0);
+ *p++ = BIT(gfx, 1);
+ *p++ = BIT(gfx, 2);
+ *p++ = BIT(gfx, 3);
+ *p++ = BIT(gfx, 4);
+ *p++ = BIT(gfx, 5);
+ *p++ = BIT(gfx, 6);
+ *p++ = BIT(gfx, 7);
+ }
+ }
+ ma+=80;
+ }
+ return 0;
+}
+
+/* F4 Character Displayer */
+static const gfx_layout jonos_charlayout =
+{
+ 8, 12, /* 8 x 12 characters */
+ 128, /* 128 characters */
+ 1, /* 1 bits per pixel */
+ { 0 }, /* no bitplanes */
+ /* x offsets */
+ { 7, 6, 5, 4, 3, 2, 1, 0 },
+ /* y offsets */
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 1024*8, 1025*8, 1026*8, 1027*8 },
+ 8*8 /* every char takes 8 bytes */
+};
+
+static GFXDECODE_START( jonos )
+ GFXDECODE_ENTRY( "chargen", 0x0000, jonos_charlayout, 0, 1 )
+GFXDECODE_END
+
+
+static MACHINE_CONFIG_START( jonos, jonos_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, XTAL_16MHz / 4)
+ MCFG_CPU_PROGRAM_MAP(jonos_mem)
+ MCFG_CPU_IO_MAP(jonos_io)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
+ MCFG_SCREEN_UPDATE_DRIVER(jonos_state, screen_update)
+ MCFG_SCREEN_SIZE(640, 300)
+ MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 299)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", jonos)
+ MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
+MACHINE_CONFIG_END
+
+DRIVER_INIT_MEMBER(jonos_state,jonos)
+{
+}
+
+/* ROM definition */
+ROM_START( jonos )
+ ROM_REGION( 0x1000, "roms", 0 )
+ ROM_LOAD( "jocrts04.rom", 0x0000, 0x1000, CRC(6a3d4048) SHA1(bdb0bc2c8c4e54261376e4ea3c2827d00d3d89bc) )
+
+ ROM_REGION( 0x0800, "user1", 0 ) // Z80 code for serial & parallel ports
+ ROM_LOAD( "joz80.rom", 0x0000, 0x0800, CRC(de1e8998) SHA1(270df08caf30cc8f18e740ef05dc8727a925a5da) )
+
+ ROM_REGION( 0x0800, "chargen", 0 )
+ ROM_LOAD( "jochset0.rom", 0x0000, 0x0800, CRC(1d8e9640) SHA1(74f3604acc71f9bc1e1f9479f6438feda79293a2) )
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
+COMP( 198?, jonos, 0, 0, jonos, jonos, jonos_state, jonos, "Jonos", "Escort", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)