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diff --git a/src/mame/drivers/br8641.c b/src/mame/drivers/br8641.c
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+++ b/src/mame/drivers/br8641.c
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+// license:BSD-3-Clause
+// copyright-holders:Miodrag Milanovic, Robbbert
+/***************************************************************************
+
+ Brandt 8641
+
+ Currency Counter
+
+ 2012-12-24 Skeleton driver. [Micko]
+ 2015-09-27 Added devices & inputs based entirely on guesswork [Robbbert]
+
+ There seems to be 15 buttons (according to images, I just have board)
+ also there are 8 dips currently set at 00011100 (1 is on)
+
+ Looks like a LCD display? I think ports 8 & 9 write to it. Also looks
+ like the display should say 8641 when machine is turned on.
+
+ToDo:
+- Need manuals, schematics, etc.
+- Artwork
+- Everything
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "cpu/z80/z80daisy.h"
+#include "machine/z80ctc.h"
+#include "machine/z80pio.h"
+#include "sound/beep.h"
+
+class brandt8641_state : public driver_device
+{
+public:
+ brandt8641_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag)
+ , m_maincpu(*this, "maincpu")
+ , m_pio1(*this, "pio1")
+ , m_pio2(*this, "pio2")
+ , m_pio3(*this, "pio3")
+ , m_ctc(*this, "ctc")
+ , m_io_keyboard(*this, "KEY")
+ , m_beep(*this, "beeper")
+ { }
+
+ DECLARE_READ8_MEMBER(port08_r);
+ DECLARE_WRITE8_MEMBER(port08_w);
+ DECLARE_WRITE8_MEMBER(port09_w);
+ DECLARE_MACHINE_RESET(br8641);
+
+private:
+ UINT8 m_port08;
+ UINT8 m_port09;
+ required_device<cpu_device> m_maincpu;
+ required_device<z80pio_device> m_pio1;
+ required_device<z80pio_device> m_pio2;
+ required_device<z80pio_device> m_pio3;
+ required_device<z80ctc_device> m_ctc;
+ required_ioport_array<8> m_io_keyboard;
+ required_device<beep_device> m_beep;
+};
+
+static ADDRESS_MAP_START(brandt8641_mem, AS_PROGRAM, 8, brandt8641_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x7fff) AM_ROM // 27256 at U12
+ AM_RANGE(0x8000, 0x9fff) AM_RAM // 8KB static ram 6264 at U12
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START(brandt8641_io, AS_IO, 8, brandt8641_state)
+ ADDRESS_MAP_UNMAP_HIGH
+ ADDRESS_MAP_GLOBAL_MASK(0xff)
+ AM_RANGE(0x04, 0x07) AM_DEVREADWRITE("pio1", z80pio_device, read, write)
+ AM_RANGE(0x08, 0x0b) AM_DEVREADWRITE("pio2", z80pio_device, read, write)
+ AM_RANGE(0x0c, 0x0f) AM_DEVREADWRITE("pio3", z80pio_device, read, write)
+ AM_RANGE(0x10, 0x13) AM_DEVREADWRITE("ctc", z80ctc_device, read, write)
+ AM_RANGE(0x1E, 0x1F) AM_WRITENOP // unknown device
+ADDRESS_MAP_END
+
+/* Input ports */
+// No idea what each key does
+static INPUT_PORTS_START( brandt8641 )
+ PORT_START("KEY.0")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C)
+
+ PORT_START("KEY.1")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F)
+
+ PORT_START("KEY.2")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I)
+
+ PORT_START("KEY.3")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L)
+
+ PORT_START("KEY.4")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O)
+
+ PORT_START("KEY.5")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R)
+
+ PORT_START("KEY.6")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U)
+
+ PORT_START("KEY.7")
+ PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V)
+ PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W)
+ PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X)
+INPUT_PORTS_END
+
+READ8_MEMBER( brandt8641_state::port08_r )
+{
+ UINT8 i, data = 7;
+
+ for (i = 0; i < 8; i++)
+ if BIT(m_port09, i)
+ data &= m_io_keyboard[i]->read();
+
+ return data | m_port08;
+}
+
+WRITE8_MEMBER( brandt8641_state::port08_w )
+{
+ m_port08 = data & 0xf8;
+ m_beep->set_state(BIT(data, 4));
+}
+
+WRITE8_MEMBER( brandt8641_state::port09_w )
+{
+ m_port09 = data ^ 0xff;
+}
+
+MACHINE_RESET_MEMBER( brandt8641_state, br8641 )
+{
+ m_beep->set_frequency(2000);
+}
+
+static const z80_daisy_config daisy_chain_intf[] =
+{
+ { "pio1" },
+ { "pio2" },
+ { "pio3" },
+ { "ctc" },
+ { NULL }
+};
+
+
+
+static MACHINE_CONFIG_START( brandt8641, brandt8641_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, XTAL_4MHz) // U4 ,4MHz crystal on board
+ MCFG_CPU_PROGRAM_MAP(brandt8641_mem)
+ MCFG_CPU_IO_MAP(brandt8641_io)
+ MCFG_CPU_CONFIG(daisy_chain_intf)
+
+ MCFG_MACHINE_RESET_OVERRIDE(brandt8641_state, br8641)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+ MCFG_SOUND_ADD("beeper", BEEP, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+
+ // Z80APIO U9
+ // Z80APIO U14
+ // Z80PIO U7 - unknown which is which
+ MCFG_DEVICE_ADD("pio1", Z80PIO, XTAL_4MHz)
+ MCFG_Z80PIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
+
+ MCFG_DEVICE_ADD("pio2", Z80PIO, XTAL_4MHz)
+ MCFG_Z80PIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
+ MCFG_Z80PIO_IN_PA_CB(READ8(brandt8641_state, port08_r))
+ MCFG_Z80PIO_OUT_PA_CB(WRITE8(brandt8641_state, port08_w))
+ MCFG_Z80PIO_OUT_PB_CB(WRITE8(brandt8641_state, port09_w))
+
+ MCFG_DEVICE_ADD("pio3", Z80PIO, XTAL_4MHz)
+ MCFG_Z80PIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
+
+ MCFG_DEVICE_ADD("ctc", Z80CTC, XTAL_4MHz) // Z80CTC U8
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( br8641 )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ ROM_LOAD( "v0911he.u11", 0x0000, 0x8000, CRC(59a16951) SHA1(893dba60ec8bfa391fb2d2a30db5d42d601f5eb9))
+ROM_END
+
+/* Driver */
+COMP( 1986, br8641, 0, 0, brandt8641, brandt8641, driver_device, 0, "Brandt", "Brandt 8641", MACHINE_NOT_WORKING )