mirror of
https://github.com/holub/mame
synced 2025-05-12 09:08:53 +03:00
128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
/***************************************************************************
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Digital Microsystems ZSBC-3
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11/01/2010 Skeleton driver.
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28/11/2010 Connected to a terminal
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11/01/2011 Converted to Modern.
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****************************************************************************
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Monitor commands: [] indicates optional
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Bx = Boot from device x (0 to 7)
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Dx [y] = Dump memory (hex and ascii) in range x [to y]
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Fx y z = Fill memory x to y with z
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Gx = Execute program at address x
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Ix = Display IN of port x
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Ox y = Output y to port x
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Sx = Enter memory editing mode, press enter for next address
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Mx y = unknown (affects memory)
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Tx = unknown (does strange things)
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enter = dump memory from 9000 to 907F (why?)
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****************************************************************************
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TODO:
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Everything really...
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Devices of all kinds;
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Use the other rom for something..
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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 zsbc3_state : public driver_device
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{
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public:
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zsbc3_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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required_device<cpu_device> m_maincpu;
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required_device<generic_terminal_device> m_terminal;
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DECLARE_READ8_MEMBER(zsbc3_28_r);
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DECLARE_READ8_MEMBER(zsbc3_2a_r);
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DECLARE_WRITE8_MEMBER(kbd_put);
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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( zsbc3_state::zsbc3_28_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( zsbc3_state::zsbc3_2a_r )
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{
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return (m_term_data) ? 5 : 4;
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}
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static ADDRESS_MAP_START(zsbc3_mem, AS_PROGRAM, 8, zsbc3_state)
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ADDRESS_MAP_UNMAP_HIGH
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AM_RANGE( 0x0000, 0x07ff ) AM_ROM
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AM_RANGE( 0x0800, 0xffff ) AM_RAM
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ADDRESS_MAP_END
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static ADDRESS_MAP_START(zsbc3_io, AS_IO, 8, zsbc3_state)
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ADDRESS_MAP_UNMAP_HIGH
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x28, 0x28) AM_READ(zsbc3_28_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
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AM_RANGE(0x2a, 0x2a) AM_READ(zsbc3_2a_r)
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ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( zsbc3 )
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INPUT_PORTS_END
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void zsbc3_state::machine_reset()
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{
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}
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WRITE8_MEMBER( zsbc3_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(zsbc3_state, kbd_put)
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};
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static MACHINE_CONFIG_START( zsbc3, zsbc3_state )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu",Z80, XTAL_16MHz /4)
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MCFG_CPU_PROGRAM_MAP(zsbc3_mem)
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MCFG_CPU_IO_MAP(zsbc3_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( zsbc3 )
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ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
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ROM_LOAD( "54-3002_zsbc_monitor_1.09.bin", 0x0000, 0x0800, CRC(628588e9) SHA1(8f0d489147ec8382ca007236e0a95a83b6ebcd86))
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ROM_REGION( 0x10000, "hdc", ROMREGION_ERASEFF )
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ROM_LOAD( "54-8622_hdc13.bin", 0x0000, 0x0400, CRC(02c7cd6d) SHA1(494281ba081a0f7fbadfc30a7d2ea18c59e55101))
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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( 1980, zsbc3, 0, 0, zsbc3, zsbc3, driver_device, 0, "Digital Microsystems", "ZSBC-3", GAME_NO_SOUND_HW)
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