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// license:BSD-3-Clause
// copyright-holders:Robbbert
/***************************************************************************
2013-09-10 Skeleton driver for Televideo ts816
TODO:
- Everything - this is just a skeleton
****************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/terminal.h"
#define TERMINAL_TAG "terminal"
class ts816_state : public driver_device
{
public:
ts816_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)
{
}
DECLARE_WRITE8_MEMBER(kbd_put);
DECLARE_READ8_MEMBER(keyin_r);
DECLARE_READ8_MEMBER(status_r);
private:
UINT8 m_term_data;
UINT8 m_status;
virtual void machine_reset();
required_device<cpu_device> m_maincpu;
required_device<generic_terminal_device> m_terminal;
};
static ADDRESS_MAP_START(ts816_mem, AS_PROGRAM, 8, ts816_state)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x0fff) AM_ROM
AM_RANGE(0x1000, 0xffff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START(ts816_io, AS_IO, 8, ts816_state)
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x50, 0x50) AM_READ(keyin_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
AM_RANGE(0x52, 0x52) AM_READ(status_r)
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( ts816 )
INPUT_PORTS_END
READ8_MEMBER( ts816_state::keyin_r )
{
UINT8 ret = m_term_data;
m_term_data = 0;
return ret;
}
READ8_MEMBER( ts816_state::status_r )
{
if (m_status)
{
m_status--;
return 5;
}
else
return 4;
}
WRITE8_MEMBER( ts816_state::kbd_put )
{
m_term_data = data;
m_status = 3;
}
void ts816_state::machine_reset()
{
m_term_data = 0;
m_status = 1;
}
static MACHINE_CONFIG_START( ts816, ts816_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, 4000000)
MCFG_CPU_PROGRAM_MAP(ts816_mem)
MCFG_CPU_IO_MAP(ts816_io)
/* video hardware */
MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0)
MCFG_GENERIC_TERMINAL_KEYBOARD_CB(WRITE8(ts816_state, kbd_put))
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( ts816 )
ROM_REGION(0x10000, "maincpu", 0)
ROM_LOAD( "81640v11.rom", 0x0000, 0x1000, CRC(295a15e7) SHA1(6f49078ab3cd49aecd2afafcbed3af0e3bcfd48c) )
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS */
COMP( 1980, ts816, 0, 0, ts816, ts816, driver_device, 0, "Televideo", "TS816", MACHINE_IS_SKELETON )
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