// 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(offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) { if (!c1l && m_c1l) { data = m_c1l[offset & (m_c1l_size - 1)]; } else if (!c1h && m_c1h) { data = m_c1h[offset & (m_c1h_size - 1)]; } else if (!c2l && m_c2l) { data = m_c2l[offset & (m_c2l_size - 1)]; } else if (!c2h && m_c2h) { data = m_c2h[offset & (m_c2h_size - 1)]; } return data; }