mirror of
https://github.com/holub/mame
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230 lines
6.5 KiB
C
230 lines
6.5 KiB
C
/***************************************************************************
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BOB85 driver by Miodrag Milanovic
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24/05/2008 Preliminary driver.
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12/05/2009 Skeleton driver.
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****************************************************************************/
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#include "emu.h"
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#include "cpu/i8085/i8085.h"
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#include "imagedev/cassette.h"
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#include "bob85.lh"
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class bob85_state : public driver_device
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{
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public:
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bob85_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_cass(*this, CASSETTE_TAG)
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, m_line0(*this, "LINE0")
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, m_line1(*this, "LINE1")
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, m_line2(*this, "LINE2")
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{ }
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required_device<cpu_device> m_maincpu;
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required_device<cassette_image_device> m_cass;
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DECLARE_READ8_MEMBER(bob85_keyboard_r);
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DECLARE_WRITE8_MEMBER(bob85_7seg_w);
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DECLARE_WRITE_LINE_MEMBER(sod_w);
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DECLARE_READ_LINE_MEMBER(sid_r);
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UINT8 m_prev_key;
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UINT8 m_count_key;
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virtual void machine_reset();
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protected:
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required_ioport m_line0;
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required_ioport m_line1;
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required_ioport m_line2;
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};
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READ8_MEMBER(bob85_state::bob85_keyboard_r)
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{
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UINT8 retVal = 0;
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UINT8 line0 = m_line0->read();
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UINT8 line1 = m_line1->read();
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UINT8 line2 = m_line2->read();
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if (line0)
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{
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switch(line0)
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{
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case 0x01 : retVal = 0x80; break;
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case 0x02 : retVal = 0x81; break;
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case 0x04 : retVal = 0x82; break;
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case 0x08 : retVal = 0x83; break;
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case 0x10 : retVal = 0x84; break;
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case 0x20 : retVal = 0x85; break;
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case 0x40 : retVal = 0x86; break;
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case 0x80 : retVal = 0x87; break;
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default : break;
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}
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}
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if (line1)
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{
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switch(line1)
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{
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case 0x01 : retVal = 0x88; break;
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case 0x02 : retVal = 0x89; break;
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case 0x04 : retVal = 0x8A; break;
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case 0x08 : retVal = 0x8B; break;
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case 0x10 : retVal = 0x8C; break;
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case 0x20 : retVal = 0x8D; break;
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case 0x40 : retVal = 0x8E; break;
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case 0x80 : retVal = 0x8F; break;
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default : break;
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}
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}
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if (line2)
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{
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switch(line2)
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{
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case 0x01 : retVal |= 0x90; break;
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case 0x02 : retVal |= 0xA0; break;
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case 0x04 : retVal |= 0xB0; break;
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case 0x08 : retVal |= 0xC0; break;
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case 0x10 : retVal |= 0xD0; break;
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case 0x20 : retVal |= 0xF0; break;
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default : break;
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}
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}
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if (retVal != m_prev_key)
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{
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m_prev_key = retVal;
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m_count_key = 0;
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return retVal;
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}
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else
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{
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if (m_count_key <1)
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{
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m_count_key++;
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return retVal;
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}
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else
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return 0;
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}
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if (retVal == 0)
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{
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m_prev_key = 0;
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m_count_key = 0;
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}
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return retVal;
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}
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WRITE8_MEMBER(bob85_state::bob85_7seg_w)
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{
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output_set_digit_value(offset, BITSWAP8( data,3,2,1,0,7,6,5,4 ));
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}
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static ADDRESS_MAP_START( bob85_mem, AS_PROGRAM, 8, bob85_state )
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE(0x0000, 0x02ff) AM_ROM
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AM_RANGE(0x0600, 0x09ff) AM_RAM
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( bob85_io, AS_IO, 8, bob85_state )
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE(0x0a, 0x0a) AM_READ(bob85_keyboard_r)
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AM_RANGE(0x0a, 0x0f) AM_WRITE(bob85_7seg_w)
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ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( bob85 )
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PORT_START("LINE0")
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PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0')
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PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1')
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PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2')
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PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3')
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PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4')
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PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5')
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PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6')
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PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7')
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PORT_START("LINE1")
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PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8')
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PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9')
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PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A')
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PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B')
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PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C')
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PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D')
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PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E')
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PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F')
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PORT_START("LINE2")
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PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("GO") PORT_CODE(KEYCODE_F1)
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PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SMEM") PORT_CODE(KEYCODE_F2)
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PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("REC") PORT_CODE(KEYCODE_F3)
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PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("VEK1") PORT_CODE(KEYCODE_F4)
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PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("VEK2") PORT_CODE(KEYCODE_F5)
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PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("NEXT") PORT_CODE(KEYCODE_F6)
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PORT_BIT(0xC0, IP_ACTIVE_HIGH, IPT_UNUSED)
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INPUT_PORTS_END
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void bob85_state::machine_reset()
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{
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}
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static const cassette_interface bob85_cassette_interface =
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{
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cassette_default_formats,
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NULL,
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(cassette_state)(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED),
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NULL,
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NULL
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};
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WRITE_LINE_MEMBER( bob85_state::sod_w )
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{
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m_cass->output(state ? +1.0 : -1.0);
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}
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READ_LINE_MEMBER( bob85_state::sid_r )
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{
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return m_cass->input() > 0.0;
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}
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static I8085_CONFIG( cpu_config )
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{
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DEVCB_NULL, /* STATUS changed callback */
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DEVCB_NULL, /* INTE changed callback */
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DEVCB_DRIVER_LINE_MEMBER(bob85_state, sid_r), /* SID changed callback (I8085A only) */
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DEVCB_DRIVER_LINE_MEMBER(bob85_state, sod_w) /* SOD changed callback (I8085A only) */
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};
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static MACHINE_CONFIG_START( bob85, bob85_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", I8085A, XTAL_5MHz)
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MCFG_CPU_PROGRAM_MAP(bob85_mem)
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MCFG_CPU_IO_MAP(bob85_io)
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MCFG_CPU_CONFIG(cpu_config)
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/* video hardware */
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MCFG_DEFAULT_LAYOUT(layout_bob85)
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// devices
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MCFG_CASSETTE_ADD(CASSETTE_TAG, bob85_cassette_interface)
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MACHINE_CONFIG_END
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/* ROM definition */
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ROM_START( bob85 )
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ROM_REGION( 0x600, "maincpu", ROMREGION_ERASEFF )
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ROM_LOAD( "bob85.rom", 0x0000, 0x0300, BAD_DUMP CRC(adde33a8) SHA1(00f26dd0c52005e7705e6cc9cb11a20e572682c6) ) // should be 6 separate 74S287's (256x4)
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ROM_END
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
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COMP( 1984, bob85, 0, 0, bob85, bob85, driver_device, 0, "Josef Kratochvil", "BOB-85", GAME_NOT_WORKING | GAME_NO_SOUND)
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