diff options
Diffstat (limited to 'src/mame/drivers/mccpm.c')
-rw-r--r-- | src/mame/drivers/mccpm.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/mame/drivers/mccpm.c b/src/mame/drivers/mccpm.c new file mode 100644 index 00000000000..7821bd59c3e --- /dev/null +++ b/src/mame/drivers/mccpm.c @@ -0,0 +1,152 @@ +// license:BSD-3-Clause +// copyright-holders:Miodrag Milanovic, Robbbert +/*************************************************************************** + + mc-CP/M-Computer + + 31/08/2010 Skeleton driver. + 18/11/2010 Connected to a terminal + 28/09/2011 Added more bioses + +Some Monitor commands (varies between versions): + +B - boot a floppy (^N to regain control) +E - prints a number +I - Select boot drive/set parameters +K,O - display version header +N - newline +Z - print 'EFFF' + +URL for v3.4: http://www.hanshehl.de/mc-prog.htm (German language) + +I/O ports (my guess) +30 - fdc (1st drive) +40 - fdc (2nd drive) +F0 - terminal in/out +F1 - terminal status + +SIO? - F0 to F3 +PIO A-Data 0F4h, A-Command 0F5h, B-Data 0F6h, B-Command 0F7h + +'maincpu' (F59C): unmapped i/o memory write to 00F1 = 01 & FF +'maincpu' (F59C): unmapped i/o memory write to 00F1 = 00 & FF +'maincpu' (F59C): unmapped i/o memory write to 00F1 = 03 & FF +'maincpu' (F59C): unmapped i/o memory write to 00F1 = E1 & FF +'maincpu' (F59C): unmapped i/o memory write to 00F1 = 04 & FF +'maincpu' (F59C): unmapped i/o memory write to 00F1 = 4C & FF +'maincpu' (F59C): unmapped i/o memory write to 00F1 = 05 & FF +'maincpu' (F59C): unmapped i/o memory write to 00F1 = EA & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 01 & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 00 & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 03 & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = E1 & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 04 & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 4C & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 05 & FF +'maincpu' (F5A5): unmapped i/o memory write to 00F3 = EA & FF +'maincpu' (F5A9): unmapped i/o memory write to 00F5 = CF & FF +'maincpu' (F5AD): unmapped i/o memory write to 00F5 = 7F & FF +'maincpu' (F5B1): unmapped i/o memory write to 00F7 = CF & FF +'maincpu' (F5B4): unmapped i/o memory write to 00F7 = 00 & FF +'maincpu' (F149): unmapped i/o memory write to 0040 = D0 & FF +'maincpu' (F14B): unmapped i/o memory write to 0030 = D0 & FF + +****************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "machine/terminal.h" + +#define TERMINAL_TAG "terminal" + +class mccpm_state : public driver_device +{ +public: + mccpm_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(mccpm_f0_r); + DECLARE_READ8_MEMBER(mccpm_f1_r); + DECLARE_WRITE8_MEMBER(kbd_put); + required_shared_ptr<UINT8> m_p_ram; + UINT8 m_term_data; + virtual void machine_reset(); +}; + + + +READ8_MEMBER( mccpm_state::mccpm_f0_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +// bit 0 - key pressed +// bit 2 - ready to send to terminal +READ8_MEMBER( mccpm_state::mccpm_f1_r ) +{ + return (m_term_data) ? 5 : 4; +} + +static ADDRESS_MAP_START(mccpm_mem, AS_PROGRAM, 8, mccpm_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0xffff) AM_RAM AM_SHARE("p_ram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( mccpm_io, AS_IO, 8, mccpm_state) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0xf0, 0xf0) AM_READ(mccpm_f0_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) + AM_RANGE(0xf1, 0xf1) AM_READ(mccpm_f1_r) +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( mccpm ) +INPUT_PORTS_END + + +void mccpm_state::machine_reset() +{ + UINT8* bios = memregion("maincpu")->base(); + memcpy(m_p_ram, bios, 0x1000); +} + +WRITE8_MEMBER( mccpm_state::kbd_put ) +{ + m_term_data = data; +} + +static MACHINE_CONFIG_START( mccpm, mccpm_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) + MCFG_CPU_PROGRAM_MAP(mccpm_mem) + MCFG_CPU_IO_MAP(mccpm_io) + + /* video hardware */ + MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) + MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(mccpm_state, kbd_put)) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( mccpm ) + ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) + ROM_SYSTEM_BIOS(0, "v36", "V3.6") + ROMX_LOAD( "mon36.j15", 0x0000, 0x1000, CRC(9c441537) SHA1(f95bad52d9392b8fc9d9b8779b7b861672a0022b), ROM_BIOS(1)) + ROM_SYSTEM_BIOS(1, "v34", "V3.4") + ROMX_LOAD( "monhemc.bin", 0x0000, 0x1000, CRC(cae7b56e) SHA1(1f40be9491a595e6705099a452743cc0d49bfce8), ROM_BIOS(2)) + ROM_SYSTEM_BIOS(2, "v34a", "V3.4 (alt)") + ROMX_LOAD( "mc01mon.bin", 0x0000, 0x0d00, CRC(d1c89043) SHA1(f52a0ed3793dde0de74596be7339233b6a1770af), ROM_BIOS(3)) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1981, mccpm, 0, 0, mccpm, mccpm, driver_device, 0, "GRAF Elektronik Systeme GmbH", "mc-CP/M-Computer", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |