diff options
Diffstat (limited to 'src/mess/drivers/ccs2422.c')
-rw-r--r-- | src/mess/drivers/ccs2422.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/mess/drivers/ccs2422.c b/src/mess/drivers/ccs2422.c new file mode 100644 index 00000000000..890ae12143c --- /dev/null +++ b/src/mess/drivers/ccs2422.c @@ -0,0 +1,112 @@ +/*************************************************************************** + + CCS Model 2422B + + 11/12/2009 Skeleton driver. + +It requires a floppy disk to boot from. + +****************************************************************************/ + +#include "emu.h" +#include "cpu/z80/z80.h" +#include "machine/terminal.h" + +#define MACHINE_RESET_MEMBER(name) void name::machine_reset() + +class ccs2422_state : public driver_device +{ +public: + ccs2422_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_ccs_ram(*this, "ccs_ram"){ } + + required_device<cpu_device> m_maincpu; + required_device<generic_terminal_device> m_terminal; + DECLARE_READ8_MEMBER( ccs2422_10_r ); + DECLARE_READ8_MEMBER( ccs2422_11_r ); + DECLARE_WRITE8_MEMBER( ccs2422_10_w ); + DECLARE_WRITE8_MEMBER( kbd_put ); + required_shared_ptr<UINT8> m_ccs_ram; + UINT8 m_term_data; + virtual void machine_reset(); +}; + + +READ8_MEMBER( ccs2422_state::ccs2422_10_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +READ8_MEMBER( ccs2422_state::ccs2422_11_r ) +{ + return (m_term_data) ? 5 : 4; +} + +WRITE8_MEMBER( ccs2422_state::ccs2422_10_w ) +{ + m_terminal->write(space, 0, data & 0x7f); +} + +static ADDRESS_MAP_START(ccs2422_mem, AS_PROGRAM, 8, ccs2422_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0xffff) AM_RAM AM_SHARE("ccs_ram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( ccs2422_io, AS_IO, 8, ccs2422_state) + ADDRESS_MAP_UNMAP_HIGH + ADDRESS_MAP_GLOBAL_MASK(0xff) + AM_RANGE(0x10, 0x10) AM_READWRITE(ccs2422_10_r,ccs2422_10_w) + AM_RANGE(0x11, 0x11) AM_READ(ccs2422_11_r) +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( ccs2422 ) +INPUT_PORTS_END + + +MACHINE_RESET_MEMBER(ccs2422_state) +{ + UINT8* user1 = memregion("user1")->base(); + memcpy((UINT8*)m_ccs_ram, user1, 0x0800); + + // this should be rom/ram banking +} + +WRITE8_MEMBER( ccs2422_state::kbd_put ) +{ + m_term_data = data; +} + +static GENERIC_TERMINAL_INTERFACE( terminal_intf ) +{ + DEVCB_DRIVER_MEMBER(ccs2422_state, kbd_put) +}; + +static MACHINE_CONFIG_START( ccs2422, ccs2422_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz) + MCFG_CPU_PROGRAM_MAP(ccs2422_mem) + MCFG_CPU_IO_MAP(ccs2422_io) + + /* video hardware */ + MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( ccs2422 ) + ROM_REGION( 0x10000, "user1", ROMREGION_ERASEFF ) + ROM_LOAD( "2422b.u24", 0x0000, 0x0800, CRC(6cf22e31) SHA1(9aa3327cd8c23d0eab82cb6519891aff13ebe1d0)) + ROM_LOAD( "2422.u23", 0x0900, 0x0100, CRC(b279cada) SHA1(6cc6e00ec49ba2245c8836d6f09266b09d6e7648)) + ROM_LOAD( "2422.u22", 0x0a00, 0x0100, CRC(e41858bb) SHA1(0be53725032ebea16e32cb720f099551a357e761)) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 19??, ccs2422, 0, 0, ccs2422, ccs2422, driver_device, 0, "California Computer Systems", "CCS Model 2422B", GAME_NOT_WORKING | GAME_NO_SOUND) |