diff options
Diffstat (limited to 'src/mame/drivers/ipc.c')
-rw-r--r-- | src/mame/drivers/ipc.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/mame/drivers/ipc.c b/src/mame/drivers/ipc.c new file mode 100644 index 00000000000..672b3b1c354 --- /dev/null +++ b/src/mame/drivers/ipc.c @@ -0,0 +1,140 @@ +// license:BSD-3-Clause +// copyright-holders:Robbbert +/*************************************************************************** + + Intel iPB and iPC + + 17/12/2009 Skeleton driver. + + 22/04/2011 Connected to a terminal, it responds. Modernised. + + --> When started, you must press Space, then it will start to work. + + Monitor commands: + A + Dn n - dump memory + E + Fn n n - fill memory + G + Hn n - hex arithmetic + Mn n n - move (copy) memory block + N + Q + R + Sn - modify a byte of memory + W - display memory in Intel? format + X - show and modify registers + + + Preliminary Memory Map + E800-F7FF BIOS ROM area + F800-FFFF Monitor ROM (or other user interface) + + I/O F4/F5 main console input and output + I/O F6/F7 alternate console input + + ToDo: + - Everything! + - iPC - Find missing rom F800-FFFF + +****************************************************************************/ + +#include "emu.h" +#include "cpu/i8085/i8085.h" +#include "machine/terminal.h" + +#define TERMINAL_TAG "terminal" + +class ipc_state : public driver_device +{ +public: + ipc_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) + { + } + + required_device<cpu_device> m_maincpu; + required_device<generic_terminal_device> m_terminal; + DECLARE_READ8_MEMBER( ipc_f4_r ); + DECLARE_READ8_MEMBER( ipc_f5_r ); + DECLARE_WRITE8_MEMBER( kbd_put ); + UINT8 *m_ram; + UINT8 m_term_data; + virtual void machine_reset(); +}; + +READ8_MEMBER( ipc_state::ipc_f4_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +// bit 0 high = ok to send to terminal; bit 1 high = key is pressed +READ8_MEMBER( ipc_state::ipc_f5_r ) +{ + return (m_term_data) ? 3 : 1; +} + + +static ADDRESS_MAP_START(ipc_mem, AS_PROGRAM, 8, ipc_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0xdfff) AM_RAM + AM_RANGE(0xe800, 0xffff) AM_ROM +ADDRESS_MAP_END + +static ADDRESS_MAP_START( ipc_io, AS_IO, 8, ipc_state) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0xf4, 0xf4) AM_READ(ipc_f4_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) + AM_RANGE(0xf5, 0xf5) AM_READ(ipc_f5_r) +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( ipc ) +INPUT_PORTS_END + + +void ipc_state::machine_reset() +{ + m_maincpu->set_state_int(I8085_PC, 0xE800); +} + +WRITE8_MEMBER( ipc_state::kbd_put ) +{ + m_term_data = data; +} + +static MACHINE_CONFIG_START( ipc, ipc_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",I8085A, XTAL_19_6608MHz / 4) + MCFG_CPU_PROGRAM_MAP(ipc_mem) + MCFG_CPU_IO_MAP(ipc_io) + + /* video hardware */ + MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) + MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(ipc_state, kbd_put)) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( ipb ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "ipb_e8_v1.3.bin", 0xe800, 0x0800, CRC(fc9d4703) SHA1(2ce078e1bcd8b24217830c54bcf04c5d146d1b76) ) + ROM_LOAD( "ipb_f8_v1.3.bin", 0xf800, 0x0800, CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) +ROM_END + +ROM_START( ipc ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "ipc_u82_v1.3_104584-001.bin", 0xe800, 0x1000, CRC(0889394f) SHA1(b7525baf1884a7d67402dea4b5566016a9861ef2) ) + + // required rom is missing. Using this one from 'ipb' for now. + ROM_LOAD( "ipb_f8_v1.3.bin", 0xf800, 0x0800, BAD_DUMP CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 19??, ipb, 0, 0, ipc, ipc, driver_device, 0, "Intel", "iPB", MACHINE_NO_SOUND) +COMP( 19??, ipc, ipb, 0, ipc, ipc, driver_device, 0, "Intel", "iPC", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |