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diff --git a/src/mess/drivers/votrpss.c b/src/mess/drivers/votrpss.c
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+/******************************************************************************
+*
+* Votrax Personal Speech System Driver
+* By Jonathan Gevaryahu AKA Lord Nightmare
+* with help from Kevin 'kevtris' Horton
+* Special thanks to Professor Nicholas Gessler for loaning several PSS units
+*
+* The votrax PSS was sold from around 35th week of 1982 until october, 1990 (LONG product life)
+
+<kevtris> timer0 = baud clock
+<kevtris> timer1 = pitch (duty cycle output to modify RC)
+<kevtris> timer2 = volume (duty cycle output to control trans. gate which does vol. control)
+<kevtris> portb: pin 6 through pin 13 of parallel port
+<kevtris> portc 0 = NC, 1 = GND, 2 = pin 5, 3 = /RXINTEN, 4 = pin 15, 5 = pin 14 through inverter, 6 = 8910 enable, 7 = from pin 4 through inverter (I believe that's for the parallel port)
+<kevtris> porta: pin 16 through 23 of parallel port
+<kevtris> that's the 8255
+<kevtris> on the AY-3-8910:
+<kevtris> IOA0-A5 = phoneme #
+<kevtris> IOA6 = strobe (SC-01)
+<kevtris> IOA7 = vochord control, 0 = off, 1 = on
+<kevtris> IOB0-IOB7 = dip switches
+<kevtris> there ya go, complete IO port map
+<LordNLptp> cool :)
+<kevtris> I pinned the IO to the serial port from the 8251 but I don't think it's too useful
+<LordNLptp> eh, its useful
+<kevtris> I drew out the schematic for the analog section
+<LordNLptp> oh that will be useful
+<kevtris> but I didn't draw out the digital part, just made an I/O and memory map but I can't find them
+<LordNLptp> i also see the ay is running at 2 MHz
+<kevtris> sounds about right
+<kevtris> got it
+<kevtris> I drew out the clocking section too
+<kevtris> 8MHz xtal
+<kevtris> 4MHz for the Z80
+<kevtris> 2MHz for the 8253 and '8910
+<kevtris> then the dividers also generate the system reset signals for the 8251
+<kevtris> and a periodic IRQ
+<LordNLptp> on the z80?
+<LordNLptp> ok how does that work?
+<kevtris> IRQ rate is umm
+<kevtris> 122Hz
+<kevtris> (8MHz / 65536)
+<kevtris> oh the 8251 is not reset by the counters
+<kevtris> it just takes a positive reset off an inverter that resets the counters
+<kevtris> PIT2 is gated by 8MHz / 256
+<kevtris> PIT1 is gated by 8MHz / 4096
+<kevtris> PIT0 is not gated
+<kevtris> (i.e. it always runs)
+<LordNLptp> oh boy, this is sounding more fun by the minute
+<kevtris> aaand your luck is about to run out
+<kevtris> that's all I got
+<LordNLptp> thats good enough, saved me a lot of work
+<kevtris> but that's everything you need
+<LordNLptp> yeah
+
+* (driver structure copied from vtech1.c)
+******************************************************************************/
+
+/* Core includes */
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "votrpss.lh"
+
+/* Components */
+//#include "sound/ay8910.h"
+//#include "sound/votrax.h"
+//#include "machine/i8255.h"
+//#include "machine/pit8253.h"
+//#include "machine/i8251.h"
+
+/* For testing */
+#include "machine/terminal.h"
+
+
+class votrpss_state : public driver_device
+{
+public:
+ votrpss_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_terminal(*this, TERMINAL_TAG)
+ { }
+
+ required_device<cpu_device> m_maincpu;
+ required_device<generic_terminal_device> m_terminal;
+ DECLARE_READ8_MEMBER(votrpss_00_r);
+ DECLARE_READ8_MEMBER(votrpss_02_r);
+ DECLARE_READ8_MEMBER(votrpss_41_r);
+ DECLARE_WRITE8_MEMBER( votrpss_kbd_put );
+ UINT8 m_term_data;
+ UINT8 m_term_status;
+};
+
+READ8_MEMBER( votrpss_state::votrpss_02_r )
+{
+ return m_term_status;
+}
+
+READ8_MEMBER( votrpss_state::votrpss_00_r )
+{
+ m_term_status = 0;
+ return m_term_data;
+}
+
+READ8_MEMBER( votrpss_state::votrpss_41_r )
+{
+ return 1;
+}
+
+
+/******************************************************************************
+ Address Maps
+******************************************************************************/
+
+static ADDRESS_MAP_START(votrpss_mem, AS_PROGRAM, 8, votrpss_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x3fff) AM_ROM /* main roms (in potted module) */
+ AM_RANGE(0x4000, 0x7fff) AM_NOP /* open bus/space for expansion rom (reads as 0xFF) */
+ AM_RANGE(0x8000, 0x8fff) AM_RAM /* onboard memory (2x 6116) */
+ AM_RANGE(0x9000, 0xbfff) AM_NOP /* open bus (space for memory expansion, checked by main roms, will be used if found)*/
+ AM_RANGE(0xc000, 0xdfff) AM_ROM /* 'personality rom', containing self-test code and optional user code */
+ AM_RANGE(0xe000, 0xffff) AM_NOP /* open bus (space for more personality rom, not normally used) */
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(votrpss_io, AS_IO, 8, votrpss_state)
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x00, 0x00) AM_READ(votrpss_00_r)
+ AM_RANGE(0x01, 0x01) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
+ AM_RANGE(0x02, 0x02) AM_READ(votrpss_02_r)
+ AM_RANGE(0x41, 0x41) AM_READ(votrpss_41_r)
+ //AM_RANGE(0x00, 0xff) AM_NOP /* temporary */
+ //AM_RANGE(0x00, 0x03) AM_READWRITE(8255ppi_r, 8255ppi_w) AM_MIRROR (0x3c)
+ //AM_RANGE(0x40, 0x41) AM_READWRITE(i8251_r, i8251_w) AM_MIRROR (0x3e)
+ //AM_RANGE(0x80, 0x83) AM_READWRITE(pit8253_r, pit8253_w) AM_MIRROR (0x3c)
+ //AM_RANGE(0xc0, 0xc3) AM_READWRITE(ay8910_r, ay8910_W) AM_MIRROR (0x3c)
+ADDRESS_MAP_END
+
+
+/******************************************************************************
+ Input Ports
+******************************************************************************/
+
+static INPUT_PORTS_START(votrpss)
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x07, 0x00, "Baud Rate" ) PORT_DIPLOCATION("SW1:1,2,3")
+ PORT_DIPSETTING( 0x00, "9600" )
+ PORT_DIPSETTING( 0x01, "4800" )
+ PORT_DIPSETTING( 0x02, "2400" )
+ PORT_DIPSETTING( 0x03, "1200" )
+ PORT_DIPSETTING( 0x04, "600" )
+ PORT_DIPSETTING( 0x05, "300" )
+ PORT_DIPSETTING( 0x06, "150" )
+ PORT_DIPSETTING( 0x07, "75" )
+ PORT_DIPNAME( 0x08, 0x00, "Serial Handshaking" ) PORT_DIPLOCATION("SW1:4")
+ PORT_DIPSETTING( 0x00, "RTS/CTS" )
+ PORT_DIPSETTING( 0x08, "XON/XOFF" )
+ PORT_DIPNAME( 0x10, 0x00, "Parity bit behavior" ) PORT_DIPLOCATION("SW1:5") /* note: only firmware 3.C (1984?) and up handle this bit; on earlier firmwares, its function is 'unused' */
+ PORT_DIPSETTING( 0x00, "Bit 8 ignored/zeroed" )
+ PORT_DIPSETTING( 0x10, "Bit 8 treated as data" )
+ PORT_DIPNAME( 0x20, 0x20, "Startup Message" ) PORT_DIPLOCATION("SW1:6")
+ PORT_DIPSETTING( 0x00, DEF_STR ( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR ( On ) )
+ PORT_DIPNAME( 0x40, 0x00, "Default Communications Port" ) PORT_DIPLOCATION("SW1:7")
+ PORT_DIPSETTING( 0x00, "Serial/RS-232" )
+ PORT_DIPSETTING( 0x40, "Parallel" )
+ PORT_DIPNAME( 0x80, 0x00, "Self Test Mode" ) PORT_DIPLOCATION("SW1:8")
+ PORT_DIPSETTING( 0x00, DEF_STR ( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR ( On ) )
+INPUT_PORTS_END
+
+WRITE8_MEMBER( votrpss_state::votrpss_kbd_put )
+{
+ m_term_data = data;
+ m_term_status = 0x20;
+}
+
+static GENERIC_TERMINAL_INTERFACE( votrpss_terminal_intf )
+{
+ DEVCB_DRIVER_MEMBER(votrpss_state, votrpss_kbd_put)
+};
+
+/******************************************************************************
+ Machine Drivers
+******************************************************************************/
+
+static MACHINE_CONFIG_START( votrpss, votrpss_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, XTAL_8MHz/2) /* 4.000 MHz, verified */
+ MCFG_CPU_PROGRAM_MAP(votrpss_mem)
+ MCFG_CPU_IO_MAP(votrpss_io)
+ //MCFG_QUANTUM_TIME(attotime::from_hz(60))
+
+ /* video hardware */
+ //MCFG_DEFAULT_LAYOUT(layout_votrpss)
+
+ /* sound hardware */
+ //MCFG_SPEAKER_STANDARD_MONO("mono")
+ //MCFG_SOUND_ADD("ay1", AY8910, XTAL_8MHz/4) /* 2.000 MHz, verified */
+ //MCFG_SOUND_CONFIG(ay8910_config)
+ //MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
+ //votrax goes here too
+
+ /* printer */
+ //MCFG_PRINTER_ADD("printer")
+
+ MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, votrpss_terminal_intf)
+MACHINE_CONFIG_END
+
+
+
+/******************************************************************************
+ ROM Definitions
+******************************************************************************/
+
+ROM_START(votrpss)
+ ROM_REGION(0x10000, "maincpu", 0)
+ /* old logo PSS, version 3.A (1982), selftest 3.0? (1982) */
+ //ROM_LOAD("u-2.3.A.bin", 0x0000, 0x2000, NO_DUMP )) /* 3.A 1982 */
+ //ROM_LOAD("u-3.3.A.bin", 0x2000, 0x2000, NO_DUMP )) /* 3.A 1982 */
+ //ROM_LOAD("u-4.3.0.bin", 0xc000, 0x2000, NO_DUMP )) /* 3.0? */
+
+ /* old logo PSS, version 3.B (late 82/early83), selftest 3.0? (1982) */
+ //ROM_LOAD("u-2.3.B.bin", 0x0000, 0x2000, NO_DUMP )) /* 3.B 1983? */
+ //ROM_LOAD("u-3.3.B.bin", 0x2000, 0x2000, NO_DUMP )) /* 3.B 1983? */
+ //ROM_LOAD("u-4.3.0.bin", 0xc000, 0x2000, NO_DUMP )) /* 3.0? */
+
+ /* old or new logo PSS, Version 3.C (1984?), selftest 3.1 (1985?) */
+ ROM_LOAD("u-2.1985.bin", 0x0000, 0x2000, CRC(410c58cf) SHA1(6e181e61ab9c268e3772fbeba101302fd40b09a2)) /* 3.C 1984?; The 1987/1988 version marked "U-2 // 090788" matches this rom */
+ ROM_LOAD("u-3.1985.bin", 0x2000, 0x2000, CRC(1439492e) SHA1(46af8ccac6fdb93cbeb8a6d57dce5898e0e0d623)) /* 3.C 1984? */
+ ROM_LOAD("u-4.100985.bin", 0xc000, 0x2000, CRC(0b7c4260) SHA1(56f0b6b1cd7b1104e09a9962583121c112337984)) /* 3.1 10/09/85 */
+
+ROM_END
+
+
+
+/******************************************************************************
+ Drivers
+******************************************************************************/
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1982, votrpss, 0, 0, votrpss, votrpss, driver_device, 0, "Votrax", "Personal Speech System", GAME_NOT_WORKING | GAME_NO_SOUND)
+