mirror of
https://github.com/holub/mame
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112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/***************************************************************************
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CCS Model 2422B
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11/12/2009 Skeleton driver.
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It requires a floppy disk to boot from.
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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 ccs2422_state : public driver_device
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{
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public:
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ccs2422_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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m_ccs_ram(*this, "ccs_ram"){ }
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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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DECLARE_READ8_MEMBER( ccs2422_10_r );
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DECLARE_READ8_MEMBER( ccs2422_11_r );
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DECLARE_WRITE8_MEMBER( ccs2422_10_w );
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DECLARE_WRITE8_MEMBER( kbd_put );
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required_shared_ptr<UINT8> m_ccs_ram;
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UINT8 m_term_data;
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virtual void machine_reset();
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};
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READ8_MEMBER( ccs2422_state::ccs2422_10_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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READ8_MEMBER( ccs2422_state::ccs2422_11_r )
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{
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return (m_term_data) ? 5 : 4;
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}
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WRITE8_MEMBER( ccs2422_state::ccs2422_10_w )
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{
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m_terminal->write(space, 0, data & 0x7f);
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}
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static ADDRESS_MAP_START(ccs2422_mem, AS_PROGRAM, 8, ccs2422_state)
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE(0x0000, 0xffff) AM_RAM AM_SHARE("ccs_ram")
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( ccs2422_io, AS_IO, 8, ccs2422_state)
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ADDRESS_MAP_UNMAP_HIGH
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x10, 0x10) AM_READWRITE(ccs2422_10_r,ccs2422_10_w)
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AM_RANGE(0x11, 0x11) AM_READ(ccs2422_11_r)
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ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( ccs2422 )
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INPUT_PORTS_END
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void ccs2422_state::machine_reset()
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{
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UINT8* user1 = memregion("user1")->base();
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memcpy((UINT8*)m_ccs_ram, user1, 0x0800);
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// this should be rom/ram banking
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}
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WRITE8_MEMBER( ccs2422_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(ccs2422_state, kbd_put)
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};
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static MACHINE_CONFIG_START( ccs2422, ccs2422_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz)
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MCFG_CPU_PROGRAM_MAP(ccs2422_mem)
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MCFG_CPU_IO_MAP(ccs2422_io)
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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( ccs2422 )
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ROM_REGION( 0x10000, "user1", ROMREGION_ERASEFF )
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ROM_LOAD( "2422b.u24", 0x0000, 0x0800, CRC(6cf22e31) SHA1(9aa3327cd8c23d0eab82cb6519891aff13ebe1d0))
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ROM_LOAD( "2422.u23", 0x0900, 0x0100, CRC(b279cada) SHA1(6cc6e00ec49ba2245c8836d6f09266b09d6e7648))
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ROM_LOAD( "2422.u22", 0x0a00, 0x0100, CRC(e41858bb) SHA1(0be53725032ebea16e32cb720f099551a357e761))
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ROM_END
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
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COMP( 19??, ccs2422, 0, 0, ccs2422, ccs2422, driver_device, 0, "California Computer Systems", "CCS Model 2422B", GAME_NOT_WORKING | GAME_NO_SOUND)
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