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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
MOS Technology 6529 Single Port Interface Adapter emulation
**********************************************************************/
#include "emu.h"
#include "mos6529.h"
//#define VERBOSE 1
#include "logmacro.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
// device type definition
DEFINE_DEVICE_TYPE(MOS6529, mos6529_device, "mos6529", "MOS 6529")
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// mos6529_device - constructor
//-------------------------------------------------
mos6529_device::mos6529_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, MOS6529, tag, owner, clock),
m_input(0),
m_p_handler(*this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void mos6529_device::device_start()
{
// resolve callbacks
m_p_handler.resolve_all_safe();
}
//-------------------------------------------------
// read -
//-------------------------------------------------
uint8_t mos6529_device::read()
{
return m_input;
}
//-------------------------------------------------
// write -
//-------------------------------------------------
void mos6529_device::write(uint8_t data)
{
for (int bit = 0; bit < 8; bit++)
m_p_handler[bit](BIT(data, bit));
}
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