// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Miodrag Milanovic
/*********************************************************************
bitbngr.c
*********************************************************************/
#include "emu.h"
#include "bitbngr.h"
/***************************************************************************
IMPLEMENTATION
***************************************************************************/
DEFINE_DEVICE_TYPE(BITBANGER, bitbanger_device, "bitbanger", "Bitbanger")
/*-------------------------------------------------
ctor
-------------------------------------------------*/
bitbanger_device::bitbanger_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, BITBANGER, tag, owner, clock),
device_image_interface(mconfig, *this),
m_interface(nullptr),
m_is_readonly(false)
{
}
/*-------------------------------------------------
native_output - outputs data to a file
-------------------------------------------------*/
void bitbanger_device::output(uint8_t data)
{
if (exists())
{
fwrite(&data, 1);
}
}
/*-------------------------------------------------
native_input - inputs data from a file
-------------------------------------------------*/
uint32_t bitbanger_device::input(void *buffer, uint32_t length)
{
if (exists())
{
return fread(buffer, length);
}
return 0;
}
/*-------------------------------------------------
device_start
-------------------------------------------------*/
void bitbanger_device::device_start(void)
{
}
/*-------------------------------------------------
call_load
-------------------------------------------------*/
image_init_result bitbanger_device::call_load(void)
{
/* we don't need to do anything special */
return image_init_result::PASS;
}
image_init_result bitbanger_device::call_create(int format_type, util::option_resolution *format_options)
{
/* we don't need to do anything special */
return image_init_result::PASS;
}
/*-------------------------------------------------
call_unload
-------------------------------------------------*/
void bitbanger_device::call_unload(void)
{
}