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*************************************/
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static ADDRESS_MAP_START( audio_map, AS_PROGRAM, 8, driver_device )
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AM_RANGE(0x0000, 0x007f) AM_RAM
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AM_RANGE(0x2000, 0x2003) AM_MIRROR(0x5ffc) AM_DEVREADWRITE_MODERN("sndpia2", pia6821_device, read, write)
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AM_RANGE(0x4000, 0x4003) AM_MIRROR(0x3ffc) AM_DEVREADWRITE_MODERN("sndpia1", pia6821_device, read, write)
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AM_RANGE(0x2000, 0x2003) AM_MIRROR(0x5ffc) AM_DEVREADWRITE("sndpia2", pia6821_device, read, write)
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AM_RANGE(0x4000, 0x4003) AM_MIRROR(0x3ffc) AM_DEVREADWRITE("sndpia1", pia6821_device, read, write)
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AM_RANGE(0xd000, 0xffff) AM_ROM