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Diffstat (limited to 'src/mame/drivers/pm68k.cpp')
-rw-r--r-- | src/mame/drivers/pm68k.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/mame/drivers/pm68k.cpp b/src/mame/drivers/pm68k.cpp new file mode 100644 index 00000000000..8aac2f9f853 --- /dev/null +++ b/src/mame/drivers/pm68k.cpp @@ -0,0 +1,104 @@ +// license:BSD-3-Clause +// copyright-holders:Robbbert +/*************************************************************************** + +Callan PM68K Unix mainframe. + +2013-09-04 Skeleton driver + +Status: Boots into monitor, some commands work, some freeze. + +****************************************************************************/ + +#include "emu.h" +#include "cpu/m68000/m68000.h" +#include "machine/terminal.h" + +#define TERMINAL_TAG "terminal" + +class pm68k_state : public driver_device +{ +public: + pm68k_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_p_base(*this, "rambase"), + m_maincpu(*this, "maincpu"), + m_terminal(*this, TERMINAL_TAG) + { + } + + DECLARE_WRITE8_MEMBER(kbd_put); + DECLARE_READ16_MEMBER(keyin_r); + DECLARE_READ16_MEMBER(status_r); +private: + UINT8 m_term_data; + virtual void machine_reset(); + required_shared_ptr<UINT16> m_p_base; + required_device<cpu_device> m_maincpu; + required_device<generic_terminal_device> m_terminal; +}; + +READ16_MEMBER( pm68k_state::keyin_r ) +{ + UINT16 ret = m_term_data; + m_term_data = 0; + return ret << 8; +} + +READ16_MEMBER( pm68k_state::status_r ) +{ + return (m_term_data) ? 0x500 : 0x400; +} + + +static ADDRESS_MAP_START(pm68k_mem, AS_PROGRAM, 16, pm68k_state) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xffffff) + AM_RANGE(0x000000, 0x1fffff) AM_RAM AM_SHARE("rambase") + AM_RANGE(0x200000, 0x205fff) AM_ROM AM_REGION("maincpu", 0) + AM_RANGE(0x600000, 0x600001) AM_READ(keyin_r) AM_DEVWRITE8(TERMINAL_TAG, generic_terminal_device, write, 0xff00) + AM_RANGE(0x600002, 0x600003) AM_READ(status_r) +ADDRESS_MAP_END + + +/* Input ports */ +static INPUT_PORTS_START( pm68k ) +INPUT_PORTS_END + + +void pm68k_state::machine_reset() +{ + UINT8* ROM = memregion("maincpu")->base(); + memcpy(m_p_base, ROM, 8); + m_maincpu->reset(); +} + +WRITE8_MEMBER( pm68k_state::kbd_put ) +{ + m_term_data = data; +} + +static MACHINE_CONFIG_START( pm68k, pm68k_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", M68000, 8000000) + MCFG_CPU_PROGRAM_MAP(pm68k_mem) + + /* video hardware */ + MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) + MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(pm68k_state, kbd_put)) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( pm68k ) + ROM_REGION16_BE(0x6000, "maincpu", 0) + ROM_LOAD16_BYTE("u103", 0x00000, 0x1000, CRC(86d32d6c) SHA1(ce9c54b62c64c37ae9106fb06b8a2b2152d1ddf6) ) + ROM_LOAD16_BYTE("u101", 0x00001, 0x1000, CRC(66607e54) SHA1(06f380fdeba13dc3aee826dd166f4bd3031febb9) ) + ROM_LOAD16_BYTE("u104", 0x02000, 0x2000, CRC(ccd2ba4d) SHA1(5cdcf875e136aa9af5f150e0102cd209c496885e) ) + ROM_LOAD16_BYTE("u102", 0x02001, 0x2000, CRC(48182abd) SHA1(a6e4fb62c5f04cb397c6c3294723ec1f7bc3b680) ) +ROM_END + + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ +COMP( 198?, pm68k, 0, 0, pm68k, pm68k, driver_device, 0, "Callan Data Systems", "PM68K", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW ) |