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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore Plus/4 standard cartridge emulation
**********************************************************************/
#include "emu.h"
#include "std.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(PLUS4_STD, plus4_standard_cartridge_device, "plus4_standard", "Plus/4 standard cartridge")
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// plus4_standard_cartridge_device - constructor
//-------------------------------------------------
plus4_standard_cartridge_device::plus4_standard_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, PLUS4_STD, tag, owner, clock),
device_plus4_expansion_card_interface(mconfig, *this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void plus4_standard_cartridge_device::device_start()
{
}
//-------------------------------------------------
// plus4_cd_r - cartridge data read
//-------------------------------------------------
uint8_t plus4_standard_cartridge_device::plus4_cd_r(address_space &space, offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h)
{
if (!c1l && m_c1l.bytes())
{
data = m_c1l[offset & m_c1l.mask()];
}
else if (!c1h && m_c1h.bytes())
{
data = m_c1h[offset & m_c1h.mask()];
}
else if (!c2l && m_c2l.bytes())
{
data = m_c2l[offset & m_c2l.mask()];
}
else if (!c2h && m_c2h.bytes())
{
data = m_c2h[offset & m_c2h.mask()];
}
return data;
}
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