mirror of
https://github.com/holub/mame
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102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
// license:MAME
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// copyright-holders:Robbbert
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/***************************************************************************
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QT Computer Systems SBC +2/4
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11/12/2009 Skeleton driver.
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It expects a rom or similar at E377-up, so currently it crashes.
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****************************************************************************/
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "machine/terminal.h"
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#define TERMINAL_TAG "terminal"
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class qtsbc_state : public driver_device
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{
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public:
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qtsbc_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_terminal(*this, TERMINAL_TAG),
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m_p_ram(*this, "p_ram")
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{
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}
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required_device<cpu_device> m_maincpu;
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required_device<generic_terminal_device> m_terminal;
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DECLARE_READ8_MEMBER( qtsbc_06_r );
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DECLARE_READ8_MEMBER( qtsbc_43_r );
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DECLARE_WRITE8_MEMBER( kbd_put );
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required_shared_ptr<UINT8> m_p_ram;
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UINT8 m_term_data;
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virtual void machine_reset();
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};
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READ8_MEMBER( qtsbc_state::qtsbc_06_r )
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{
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UINT8 ret = m_term_data;
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m_term_data = 0;
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return ret;
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}
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READ8_MEMBER( qtsbc_state::qtsbc_43_r )
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{
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return 0;
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}
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static ADDRESS_MAP_START(qtsbc_mem, AS_PROGRAM, 8, qtsbc_state)
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE( 0x0000, 0xffff ) AM_RAM AM_SHARE("p_ram") AM_REGION("maincpu", 0)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( qtsbc_io, AS_IO, 8, qtsbc_state)
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ADDRESS_MAP_UNMAP_HIGH
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x06, 0x06) AM_READ(qtsbc_06_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
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AM_RANGE(0x43, 0x43) AM_READ(qtsbc_43_r)
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ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( qtsbc )
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INPUT_PORTS_END
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void qtsbc_state::machine_reset()
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{
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UINT8* bios = memregion("maincpu")->base()+0x10000;
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memcpy(m_p_ram, bios, 0x800);
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}
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WRITE8_MEMBER( qtsbc_state::kbd_put )
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{
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m_term_data = data;
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}
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static MACHINE_CONFIG_START( qtsbc, qtsbc_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) // Mostek MK3880
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MCFG_CPU_PROGRAM_MAP(qtsbc_mem)
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MCFG_CPU_IO_MAP(qtsbc_io)
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/* video hardware */
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MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
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MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(qtsbc_state, kbd_put))
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MACHINE_CONFIG_END
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/* ROM definition */
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ROM_START( qtsbc )
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ROM_REGION( 0x10800, "maincpu", ROMREGION_ERASEFF )
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ROM_LOAD( "qtsbc.bin", 0x10000, 0x0800, CRC(823fd942) SHA1(64c4f74dd069ae4d43d301f5e279185f32a1efa0))
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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( 19??, qtsbc, 0, 0, qtsbc, qtsbc, driver_device, 0, "Computer Systems Inc.", "QT SBC +2/4", GAME_NOT_WORKING | GAME_NO_SOUND)
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