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tr175.cpp: Guess at screen parameters (nw)
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@ -83,16 +83,13 @@ MACHINE_CONFIG_START(tr175_state::tr175)
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MCFG_CPU_PROGRAM_MAP(mem_map)
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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(720, 360)
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MCFG_SCREEN_VISIBLE_AREA(0, 720-1, 0, 360-1)
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MCFG_SCREEN_RAW_PARAMS(XTAL_28_322MHz, 900, 0, 720, 449, 0, 416) // guess
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MCFG_SCREEN_UPDATE_DEVICE("avdc", scn2674_device, screen_update)
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MCFG_DEVICE_ADD("avdc", SCN2674, 4000000)
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MCFG_DEVICE_ADD("avdc", SCN2674, XTAL_28_322MHz / 18) // guess
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MCFG_SCN2674_INTR_CALLBACK(INPUTLINE("maincpu", M68K_IRQ_2))
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MCFG_SCN2674_TEXT_CHARACTER_WIDTH(8)
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MCFG_SCN2674_GFX_CHARACTER_WIDTH(8)
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MCFG_SCN2674_TEXT_CHARACTER_WIDTH(18) // guess
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MCFG_SCN2674_GFX_CHARACTER_WIDTH(18) // guess
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MCFG_SCN2674_DRAW_CHARACTER_CALLBACK_OWNER(tr175_state, draw_character)
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MCFG_DEVICE_ADDRESS_MAP(0, vram_map)
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MCFG_VIDEO_SET_SCREEN("screen")
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@ -111,7 +108,7 @@ MACHINE_CONFIG_END
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Relisys TR-175 II.
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Chips: MC68000P12, HM82C11C, SCN2681, 3x W24257-70L, KDA0476BCN-66 (RAMDAC), 4 undumped proms, Beeper, Button battery
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Crystals: 28.322, 46.448, 11.0592, unknown.
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Colour screen.
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Colour screen (VGA).
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***************************************************************************************************************/
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