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// license:BSD-3-Clause
// copyright-holders:Nathan Woods, Miodrag Milanovic
/*********************************************************************
bitbngr.c
*********************************************************************/
#include "emu.h"
#include "bitbngr.h"
#include "softlist_dev.h"
#include <cstring>
/***************************************************************************
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 (!loaded_through_softlist() && 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);
else
return 0;
}
/*-------------------------------------------------
device_start
-------------------------------------------------*/
void bitbanger_device::device_start()
{
}
/*-------------------------------------------------
get_software_list_loader
-------------------------------------------------*/
const software_list_loader &bitbanger_device::get_software_list_loader() const
{
return image_software_list_loader::instance();
}
/*-------------------------------------------------
call_load
-------------------------------------------------*/
image_init_result bitbanger_device::call_load()
{
// 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()
{
// we don't need to do anything special
}
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