// license:BSD-3-Clause // copyright-holders:hap /********************************************************************** VideoBrain Info Manager cartridge emulation 6KB EPROM (3*B2716), 1KB RAM (2*2114) It has the same PCB layout as comp_language, with wire mods to put the ROM/RAM at fixed addresses. There's a big orange label saying "TEST UNIT NO. 14", and a handwritten one with "INFO. MGR SPECIAL". **********************************************************************/ #include "emu.h" #include "info_manager.h" //************************************************************************** // DEVICE DEFINITIONS //************************************************************************** DEFINE_DEVICE_TYPE(VB_INFO_MANAGER, videobrain_info_manager_cartridge_device, "vb_info_manager", "VideoBrain Info Manager cartridge") //************************************************************************** // LIVE DEVICE //************************************************************************** //------------------------------------------------- // videobrain_info_manager_cartridge_device - constructor //------------------------------------------------- videobrain_info_manager_cartridge_device::videobrain_info_manager_cartridge_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, VB_INFO_MANAGER, tag, owner, clock), device_videobrain_expansion_card_interface(mconfig, *this) { } //------------------------------------------------- // videobrain_bo_r - cartridge data read //------------------------------------------------- uint8_t videobrain_info_manager_cartridge_device::videobrain_bo_r(offs_t offset, int cs1, int cs2) { uint8_t data = 0; if (!cs1) { data = m_rom[offset & 0x7ff & m_rom_mask]; } else if (!cs2) { data = m_ram[offset & m_ram_mask]; } else if (offset >= 0x3000) { data = m_rom[offset & m_rom_mask]; } return data; } //------------------------------------------------- // videobrain_bo_w - cartridge data write //------------------------------------------------- void videobrain_info_manager_cartridge_device::videobrain_bo_w(offs_t offset, uint8_t data, int cs1, int cs2) { if (!cs2) { m_ram[offset & m_ram_mask] = data; } }