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Diffstat (limited to 'src/mame/drivers/ibm6580.cpp')
-rw-r--r--src/mame/drivers/ibm6580.cpp104
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diff --git a/src/mame/drivers/ibm6580.cpp b/src/mame/drivers/ibm6580.cpp
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+// license:BSD-3-Clause
+// copyright-holders:Robbbert
+/***************************************************************************
+
+IBM 6580 DisplayWriter.
+
+2013-08-19 Skeleton driver.
+
+A green-screen dedicated word-processing workstation. It uses 20cm floppy
+disks. It could have up to 224k of ram.
+
+ToDo:
+- Everything!
+- The roms need to be loaded properly.
+- Chargen rom is not dumped.
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/i86/i86.h"
+
+class ibm6580_state : public driver_device
+{
+public:
+ ibm6580_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_maincpu(*this, "maincpu")
+ { }
+
+ const UINT8 *m_p_chargen;
+ DECLARE_PALETTE_INIT(ibm6580);
+ UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+private:
+ virtual void machine_reset();
+ required_device<cpu_device> m_maincpu;
+};
+
+
+static ADDRESS_MAP_START(ibm6580_mem, AS_PROGRAM, 16, ibm6580_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x00000,0xfdfff) AM_RAM
+ AM_RANGE(0xfe000,0xfffff) AM_ROM AM_REGION("user1", 0)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(ibm6580_io, AS_IO, 16, ibm6580_state)
+ //ADDRESS_MAP_UNMAP_HIGH
+ //ADDRESS_MAP_GLOBAL_MASK(0xff)
+ADDRESS_MAP_END
+
+
+/* Input ports */
+static INPUT_PORTS_START( ibm6580 )
+INPUT_PORTS_END
+
+UINT32 ibm6580_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ return 0;
+}
+
+PALETTE_INIT_MEMBER( ibm6580_state, ibm6580 )
+{
+ palette.set_pen_color(0, 0, 0, 0 ); /* Black */
+ palette.set_pen_color(1, 0, 255, 0 ); /* Full */
+ palette.set_pen_color(2, 0, 128, 0 ); /* Dimmed */
+}
+
+void ibm6580_state::machine_reset()
+{
+ m_p_chargen = memregion("chargen")->base();
+}
+
+static MACHINE_CONFIG_START( ibm6580, ibm6580_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", I8086, 4000000) // no idea
+ MCFG_CPU_PROGRAM_MAP(ibm6580_mem)
+ MCFG_CPU_IO_MAP(ibm6580_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(ibm6580_state, screen_update)
+ MCFG_SCREEN_SIZE(640, 240)
+ MCFG_SCREEN_VISIBLE_AREA(0, 639, 0, 239)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_PALETTE_ADD("palette", 3)
+ MCFG_PALETTE_INIT_OWNER(ibm6580_state, ibm6580)
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( ibm6580 )
+ ROM_REGION16_LE( 0x2000, "user1", 0 )
+ ROM_LOAD16_BYTE("8493823.bin", 0x0001, 0x1000, CRC(0bea066f) SHA1(8a42e24b609df7d9ca9cd52929702a61f7024635))
+ ROM_LOAD16_BYTE("8493822.bin", 0x0000, 0x1000, CRC(6e67f41a) SHA1(600fee505efe5cbcc8bdbab91d233378c7be4f12))
+
+ ROM_REGION( 0x2000, "chargen", 0 )
+ ROM_LOAD( "8493383.bin", 0x0000, 0x2000, NO_DUMP )
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
+COMP( 1980, ibm6580, 0, 0, ibm6580, ibm6580, driver_device, 0, "IBM", "IBM 6580 DisplayWriter", MACHINE_IS_SKELETON)