diff options
Diffstat (limited to 'src/mame/drivers/qtsbc.cpp')
-rw-r--r-- | src/mame/drivers/qtsbc.cpp | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/mame/drivers/qtsbc.cpp b/src/mame/drivers/qtsbc.cpp new file mode 100644 index 00000000000..a79b75fd8ad --- /dev/null +++ b/src/mame/drivers/qtsbc.cpp @@ -0,0 +1,101 @@ +// license:BSD-3-Clause +// copyright-holders:Robbbert +/*************************************************************************** + + QT Computer Systems SBC +2/4 + + 11/12/2009 Skeleton driver. + + It expects a rom or similar at E377-up, so currently it crashes. + +****************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "machine/terminal.h" + +#define TERMINAL_TAG "terminal" + +class qtsbc_state : public driver_device +{ +public: + qtsbc_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), + m_p_ram(*this, "p_ram") + { + } + + required_device<cpu_device> m_maincpu; + required_device<generic_terminal_device> m_terminal; + DECLARE_READ8_MEMBER( qtsbc_06_r ); + DECLARE_READ8_MEMBER( qtsbc_43_r ); + DECLARE_WRITE8_MEMBER( kbd_put ); + required_shared_ptr<UINT8> m_p_ram; + UINT8 m_term_data; + virtual void machine_reset(); +}; + + +READ8_MEMBER( qtsbc_state::qtsbc_06_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +READ8_MEMBER( qtsbc_state::qtsbc_43_r ) +{ + return 0; +} + +static ADDRESS_MAP_START(qtsbc_mem, AS_PROGRAM, 8, qtsbc_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE( 0x0000, 0xffff ) AM_RAM AM_SHARE("p_ram") AM_REGION("maincpu", 0) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( qtsbc_io, AS_IO, 8, qtsbc_state) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x06, 0x06) AM_READ(qtsbc_06_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) + AM_RANGE(0x43, 0x43) AM_READ(qtsbc_43_r) +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( qtsbc ) +INPUT_PORTS_END + + +void qtsbc_state::machine_reset() +{ + UINT8* bios = memregion("maincpu")->base()+0x10000; + memcpy(m_p_ram, bios, 0x800); +} + +WRITE8_MEMBER( qtsbc_state::kbd_put ) +{ + m_term_data = data; +} + +static MACHINE_CONFIG_START( qtsbc, qtsbc_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) // Mostek MK3880 + MCFG_CPU_PROGRAM_MAP(qtsbc_mem) + MCFG_CPU_IO_MAP(qtsbc_io) + + /* video hardware */ + MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) + MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(qtsbc_state, kbd_put)) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( qtsbc ) + ROM_REGION( 0x10800, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "qtsbc.bin", 0x10000, 0x0800, CRC(823fd942) SHA1(64c4f74dd069ae4d43d301f5e279185f32a1efa0)) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 19??, qtsbc, 0, 0, qtsbc, qtsbc, driver_device, 0, "Computer Systems Inc.", "QT SBC +2/4", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |