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(MESS) New working driver [Robbbert]
-------------------------------------------------- Cromemco MCB-216 Single Card Computer (out of whatsnew) Cromemco CB-308 Single Card Computer (no roms dumped, not in mess.lst)
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Robbbert
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.gitattributes
vendored
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.gitattributes
vendored
@ -7026,6 +7026,7 @@ src/mess/drivers/mbee.c svneol=native#text/plain
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src/mess/drivers/mc10.c svneol=native#text/plain
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src/mess/drivers/mc1000.c svneol=native#text/plain
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src/mess/drivers/mc80.c svneol=native#text/plain
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src/mess/drivers/mcb216.c svneol=native#text/plain
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src/mess/drivers/mccpm.c svneol=native#text/plain
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src/mess/drivers/megadriv.c svneol=native#text/plain
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src/mess/drivers/mekd2.c svneol=native#text/plain
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159
src/mess/drivers/mcb216.c
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159
src/mess/drivers/mcb216.c
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@ -0,0 +1,159 @@
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// license:MAME
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// copyright-holders:Robbbert
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/***************************************************************************
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2013-12-01 Driver for Cromemco MCB-216 SCC (Single Card Computer)
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The driver is working, just missing some hardware info (see ToDo).
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TODO:
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- Find out cpu clock speed
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- Find out what UART type is used
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Memory allocation
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- 0000 to 0FFF - standard roms
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- 1000 to 1FFF - optional roms or ram (expect roms)
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- 2000 to 23FF - standard ram
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- 2400 to FFFF - optional whatever the user wants (expect ram)
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When started, you must press Enter twice, then you will be in BASIC.
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To go to the monitor, use the QUIT command, and to return use the B
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command.
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The mcb216 can use an optional floppy-disk-drive unit. The only other
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storage is paper-tape, which is expected to be attached to the terminal.
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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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class mcb216_state : public driver_device
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{
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public:
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mcb216_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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{ }
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DECLARE_WRITE8_MEMBER(kbd_put);
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DECLARE_READ8_MEMBER(keyin_r);
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DECLARE_READ8_MEMBER(status_r);
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DECLARE_MACHINE_RESET(mcb216);
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DECLARE_MACHINE_RESET(cb308);
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private:
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UINT8 m_term_data;
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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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};
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static ADDRESS_MAP_START(mcb216_mem, AS_PROGRAM, 8, mcb216_state)
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE(0x0000, 0x0fff) AM_ROM AM_REGION("roms", 0)
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AM_RANGE(0x2000, 0x23ff) AM_RAM
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AM_RANGE(0x2400, 0xffff) AM_RAM
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ADDRESS_MAP_END
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static ADDRESS_MAP_START(mcb216_io, AS_IO, 8, mcb216_state)
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x00, 0x00) AM_READ(status_r)
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AM_RANGE(0x01, 0x01) AM_READ(keyin_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START(cb308_mem, AS_PROGRAM, 8, mcb216_state)
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE(0x0000, 0x1fff) AM_RAM
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AM_RANGE(0xe000, 0xefff) AM_ROM AM_REGION("roms", 0)
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ADDRESS_MAP_END
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// io unknown, assumed to be the same as mcb216
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static ADDRESS_MAP_START(cb308_io, AS_IO, 8, mcb216_state)
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x00, 0x00) AM_READ(status_r)
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AM_RANGE(0x01, 0x01) AM_READ(keyin_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
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ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( mcb216 )
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INPUT_PORTS_END
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READ8_MEMBER( mcb216_state::keyin_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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// 0x40 - a keystroke is available
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// 0x80 - ok to send to terminal
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READ8_MEMBER( mcb216_state::status_r )
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{
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return (m_term_data) ? 0xc0 : 0x80;
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}
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WRITE8_MEMBER( mcb216_state::kbd_put )
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{
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m_term_data = data;
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}
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static GENERIC_TERMINAL_INTERFACE( terminal_intf )
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{
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DEVCB_DRIVER_MEMBER(mcb216_state, kbd_put)
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};
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MACHINE_RESET_MEMBER( mcb216_state, mcb216 )
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{
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m_term_data = 0;
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}
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MACHINE_RESET_MEMBER( mcb216_state, cb308 )
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{
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m_term_data = 0;
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m_maincpu->set_state_int(Z80_PC, 0xe000);
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}
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static MACHINE_CONFIG_START( mcb216, mcb216_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", Z80, 4000000)
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MCFG_CPU_PROGRAM_MAP(mcb216_mem)
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MCFG_CPU_IO_MAP(mcb216_io)
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MCFG_MACHINE_RESET_OVERRIDE(mcb216_state, mcb216)
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/* video hardware */
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MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
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MACHINE_CONFIG_END
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static MACHINE_CONFIG_START( cb308, mcb216_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", Z80, 4000000)
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MCFG_CPU_PROGRAM_MAP(cb308_mem)
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MCFG_CPU_IO_MAP(cb308_io)
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MCFG_MACHINE_RESET_OVERRIDE(mcb216_state, cb308)
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/* video hardware */
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MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
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MACHINE_CONFIG_END
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/* ROM definition */
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ROM_START( mcb216 )
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ROM_REGION(0x1000, "roms", 0)
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ROM_LOAD( "mcb216r0", 0x0000, 0x0800, CRC(86d20cea) SHA1(9fb8fdbcb8d31bd3304a0b3339c7f423188e9d37) )
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ROM_LOAD( "mcb216r1", 0x0800, 0x0800, CRC(68a25b2c) SHA1(3eadd4a5d65726f767742deb4b51a97df813f37d) )
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ROM_END
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ROM_START( cb308 )
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ROM_REGION(0x1000, "roms", 0)
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ROM_LOAD( "cb308r0", 0x0000, 0x0800, NO_DUMP )
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ROM_LOAD( "cb308r1", 0x0800, 0x0800, NO_DUMP )
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ROM_END
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
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COMP( 1979, mcb216, 0, 0, mcb216, mcb216, driver_device, 0, "Cromemco", "MCB-216", GAME_NOT_WORKING | GAME_NO_SOUND_HW )
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COMP( 1977, cb308, mcb216, 0, cb308, mcb216, driver_device, 0, "Cromemco", "CB-308", GAME_NOT_WORKING | GAME_NO_SOUND_HW )
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@ -2295,3 +2295,4 @@ ft68m
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molecula
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taitons1
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sh4robot
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mcb216
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@ -2170,6 +2170,7 @@ $(MESSOBJ)/skeleton.a: \
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$(MESS_DRIVERS)/lola8a.o \
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$(MESS_DRIVERS)/m79152pc.o \
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$(MESS_DRIVERS)/mbc200.o \
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$(MESS_DRIVERS)/mcb216.o \
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$(MESS_DRIVERS)/mccpm.o \
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$(MESS_DRIVERS)/mes.o \
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$(MESS_DRIVERS)/mice.o \
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