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/***************************************************************************
Digital Microsystems ZSBC-3
11/01/2010 Skeleton driver.
28/11/2010 Connected to a terminal
11/01/2011 Converted to Modern.
****************************************************************************
Monitor commands: [] indicates optional
Bx = Boot from device x (0 to 7)
Dx [y] = Dump memory (hex and ascii) in range x [to y]
Fx y z = Fill memory x to y with z
Gx = Execute program at address x
Ix = Display IN of port x
Ox y = Output y to port x
Sx = Enter memory editing mode, press enter for next address
Mx y = unknown (affects memory)
Tx = unknown (does strange things)
enter = dump memory from 9000 to 907F (why?)
****************************************************************************
TODO:
Everything really...
Devices of all kinds;
Use the other rom for something..
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/terminal.h"
class zsbc3_state : public driver_device
{
public:
zsbc3_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)
{ }
required_device<cpu_device> m_maincpu;
required_device<generic_terminal_device> m_terminal;
DECLARE_READ8_MEMBER(zsbc3_28_r);
DECLARE_READ8_MEMBER(zsbc3_2a_r);
DECLARE_WRITE8_MEMBER(kbd_put);
UINT8 m_term_data;
virtual void machine_reset();
};
READ8_MEMBER( zsbc3_state::zsbc3_28_r )
{
UINT8 ret = m_term_data;
m_term_data = 0;
return ret;
}
READ8_MEMBER( zsbc3_state::zsbc3_2a_r )
{
return (m_term_data) ? 5 : 4;
}
static ADDRESS_MAP_START(zsbc3_mem, AS_PROGRAM, 8, zsbc3_state)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE( 0x0000, 0x07ff ) AM_ROM
AM_RANGE( 0x0800, 0xffff ) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START(zsbc3_io, AS_IO, 8, zsbc3_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x28, 0x28) AM_READ(zsbc3_28_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
AM_RANGE(0x2a, 0x2a) AM_READ(zsbc3_2a_r)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( zsbc3 )
INPUT_PORTS_END
void zsbc3_state::machine_reset()
{
}
WRITE8_MEMBER( zsbc3_state::kbd_put )
{
m_term_data = data;
}
static GENERIC_TERMINAL_INTERFACE( terminal_intf )
{
DEVCB_DRIVER_MEMBER(zsbc3_state, kbd_put)
};
static MACHINE_CONFIG_START( zsbc3, zsbc3_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80, XTAL_16MHz /4)
MCFG_CPU_PROGRAM_MAP(zsbc3_mem)
MCFG_CPU_IO_MAP(zsbc3_io)
/* video hardware */
MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( zsbc3 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "54-3002_zsbc_monitor_1.09.bin", 0x0000, 0x0800, CRC(628588e9) SHA1(8f0d489147ec8382ca007236e0a95a83b6ebcd86))
ROM_REGION( 0x10000, "hdc", ROMREGION_ERASEFF )
ROM_LOAD( "54-8622_hdc13.bin", 0x0000, 0x0400, CRC(02c7cd6d) SHA1(494281ba081a0f7fbadfc30a7d2ea18c59e55101))
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
COMP( 1980, zsbc3, 0, 0, zsbc3, zsbc3, driver_device, 0, "Digital Microsystems", "ZSBC-3", GAME_NO_SOUND_HW)
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