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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
VideoBrain Standard 2K/4K cartridge emulation
**********************************************************************/
#include "emu.h"
#include "std.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(VB_STD, videobrain_standard_cartridge_device, "vb_std", "VideoBrain standard cartridge")
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// videobrain_standard_cartridge_device - constructor
//-------------------------------------------------
videobrain_standard_cartridge_device::videobrain_standard_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, VB_STD, tag, owner, clock),
device_videobrain_expansion_card_interface(mconfig, *this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void videobrain_standard_cartridge_device::device_start()
{
}
//-------------------------------------------------
// videobrain_bo_r - cartridge data read
//-------------------------------------------------
uint8_t videobrain_standard_cartridge_device::videobrain_bo_r(address_space &space, offs_t offset, int cs1, int cs2)
{
uint8_t data = 0;
if (!cs1)
{
data = m_rom[offset & m_rom_mask];
}
else if (!cs2)
{
data = m_rom[offset & m_rom_mask];
}
return data;
}
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