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/* todo: check all memory regions actually readable / read from */
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static ADDRESS_MAP_START( pass_map, AS_PROGRAM, 16 )
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static ADDRESS_MAP_START( pass_map, AS_PROGRAM, 16, pass_state )
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AM_RANGE(0x000000, 0x03ffff) AM_ROM
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AM_RANGE(0x080000, 0x083fff) AM_RAM
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AM_RANGE(0x200000, 0x200fff) AM_RAM_WRITE(pass_bg_videoram_w) AM_BASE_MEMBER(pass_state, m_bg_videoram) // Background
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AM_RANGE(0x210000, 0x213fff) AM_RAM_WRITE(pass_fg_videoram_w) AM_BASE_MEMBER(pass_state, m_fg_videoram) // Foreground
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AM_RANGE(0x220000, 0x2203ff) AM_RAM_WRITE(paletteram16_xRRRRRGGGGGBBBBB_word_w) AM_BASE_GENERIC(paletteram)
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AM_RANGE(0x200000, 0x200fff) AM_RAM_WRITE(pass_bg_videoram_w) AM_SHARE("bg_videoram") // Background
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AM_RANGE(0x210000, 0x213fff) AM_RAM_WRITE(pass_fg_videoram_w) AM_SHARE("fg_videoram") // Foreground
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AM_RANGE(0x220000, 0x2203ff) AM_RAM_WRITE(paletteram_xRRRRRGGGGGBBBBB_word_w) AM_SHARE("paletteram")
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AM_RANGE(0x230000, 0x230001) AM_WRITE(soundlatch_word_w)
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AM_RANGE(0x230100, 0x230101) AM_READ_PORT("DSW")
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AM_RANGE(0x230200, 0x230201) AM_READ_PORT("INPUTS")
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static ADDRESS_MAP_START( pass_sound_map, AS_PROGRAM, 8 )
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static ADDRESS_MAP_START( pass_sound_map, AS_PROGRAM, 8, pass_state )
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AM_RANGE(0x0000, 0x7fff) AM_ROM
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AM_RANGE(0xf800, 0xffff) AM_RAM
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static ADDRESS_MAP_START( pass_sound_io_map, AS_IO, 8 )
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static ADDRESS_MAP_START( pass_sound_io_map, AS_IO, 8, pass_state )
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x00, 0x00) AM_READ(soundlatch_r)
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AM_RANGE(0x70, 0x71) AM_DEVREADWRITE("ymsnd", ym2203_r, ym2203_w)
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AM_RANGE(0x80, 0x80) AM_DEVWRITE_MODERN("oki", okim6295_device, write)
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AM_RANGE(0xc0, 0xc0) AM_WRITE(soundlatch_clear_w)
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AM_RANGE(0x00, 0x00) AM_READ(soundlatch_byte_r)
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AM_RANGE(0x70, 0x71) AM_DEVREADWRITE_LEGACY("ymsnd", ym2203_r, ym2203_w)
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AM_RANGE(0x80, 0x80) AM_DEVWRITE("oki", okim6295_device, write)
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AM_RANGE(0xc0, 0xc0) AM_WRITE(soundlatch_clear_byte_w)
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/* todo : work out function of unknown but used dsw */