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https://github.com/holub/mame
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93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
// license:BSD-3-Clause
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// copyright-holders:Miodrag Milanovic
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/***************************************************************************
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Elektronika MK-85
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12/05/2009 Skeleton driver.
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http://www.taswegian.com/MOSCOW/mk-85.html
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This is a Soviet computer-calculator, very similar in looks to the Sharp.
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It has a LCD display.
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Models:
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MK-85: 2K of RAM
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MK-85M: 6K of RAM
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MK-85C: Military cryptographic device. Typing text into it produces
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a string of numbers.
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****************************************************************************/
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#include "emu.h"
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#include "cpu/t11/t11.h"
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class mk85_state : public driver_device
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{
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public:
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mk85_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag) ,
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m_maincpu(*this, "maincpu") { }
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virtual void machine_reset();
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virtual void video_start();
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UINT32 screen_update_mk85(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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required_device<cpu_device> m_maincpu;
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};
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static ADDRESS_MAP_START(mk85_mem, AS_PROGRAM, 16, mk85_state)
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE( 0x0000, 0x3fff ) AM_ROM AM_MIRROR(0x4000)
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AM_RANGE( 0x8000, 0xffff ) AM_RAM
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ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( mk85 )
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INPUT_PORTS_END
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void mk85_state::machine_reset()
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{
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}
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void mk85_state::video_start()
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{
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}
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UINT32 mk85_state::screen_update_mk85(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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return 0;
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}
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static MACHINE_CONFIG_START( mk85, mk85_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", K1801VM2, XTAL_4MHz)
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MCFG_T11_INITIAL_MODE(0)
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MCFG_CPU_PROGRAM_MAP(mk85_mem)
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/* video hardware */
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_REFRESH_RATE(50)
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MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
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MCFG_SCREEN_SIZE(640, 480)
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MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
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MCFG_SCREEN_UPDATE_DRIVER(mk85_state, screen_update_mk85)
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MCFG_SCREEN_PALETTE("palette")
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MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
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MACHINE_CONFIG_END
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/* ROM definition */
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ROM_START( mk85 )
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ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
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ROM_LOAD( "mk85.rom", 0x0000, 0x4000, CRC(398e4fd1) SHA1(5e2f877d0f451b46840f01190004552bad5248c8))
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ROM_END
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
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COMP( 1986, mk85, 0, 0, mk85, mk85, driver_device, 0, "Elektronika", "MK-85", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
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