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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
RCA VIP ASCII Keyboard Interface VP-620 emulation
**********************************************************************/
#include "emu.h"
#include "vp620.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(VP620, vp620_device, "vp620", "VP-620 ASCII Keyboard")
//-------------------------------------------------
// ASCII_KEYBOARD_INTERFACE( kb_intf )
//-------------------------------------------------
void vp620_device::kb_w(uint8_t data)
{
m_keydata = data;
m_slot->inst_w(0);
m_slot->inst_w(1);
m_keystb = ASSERT_LINE;
}
//-------------------------------------------------
// MACHINE_CONFIG_START( vp620 )
//-------------------------------------------------
MACHINE_CONFIG_MEMBER( vp620_device::device_add_mconfig )
MCFG_DEVICE_ADD("keyboard", GENERIC_KEYBOARD, 0)
MCFG_GENERIC_KEYBOARD_CB(PUT(vp620_device, kb_w))
MACHINE_CONFIG_END
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// vp620_device - constructor
//-------------------------------------------------
vp620_device::vp620_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, VP620, tag, owner, clock),
device_vip_byteio_port_interface(mconfig, *this),
m_keydata(0),
m_keystb(CLEAR_LINE)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void vp620_device::device_start()
{
}
//-------------------------------------------------
// vip_in_r - byte input read
//-------------------------------------------------
uint8_t vp620_device::vip_in_r()
{
return m_keydata;
}
//-------------------------------------------------
// vip_ef3_r - EF3 flag read
//-------------------------------------------------
int vp620_device::vip_ef4_r()
{
int state = m_keystb;
m_keystb = CLEAR_LINE;
return state;
}
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