// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /********************************************************************* ng_memcard.c NEOGEO Memory card functions. *********************************************************************/ #include "emu.h" #include "emuopts.h" #include "ng_memcard.h" // device type definition DEFINE_DEVICE_TYPE(NG_MEMCARD, ng_memcard_device, "ng_memcard", "NeoGeo Memory Card") //------------------------------------------------- // ng_memcard_device - constructor //------------------------------------------------- ng_memcard_device::ng_memcard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, NG_MEMCARD, tag, owner, clock) , device_image_interface(mconfig, *this) { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void ng_memcard_device::device_start() { save_item(NAME(m_memcard_data)); } /*------------------------------------------------- memcard_insert - insert an existing memory card with the given index -------------------------------------------------*/ image_init_result ng_memcard_device::call_load() { if(length() != 0x800) return image_init_result::FAIL; fseek(0, SEEK_SET); size_t ret = fread(m_memcard_data, 0x800); if(ret != 0x800) return image_init_result::FAIL; return image_init_result::PASS; } void ng_memcard_device::call_unload() { fseek(0, SEEK_SET); fwrite(m_memcard_data, 0x800); } image_init_result ng_memcard_device::call_create(int format_type, util::option_resolution *format_options) { memset(m_memcard_data, 0, 0x800); size_t ret = fwrite(m_memcard_data, 0x800); if(ret != 0x800) return image_init_result::FAIL; return image_init_result::PASS; } READ8_MEMBER(ng_memcard_device::read) { return m_memcard_data[offset]; } WRITE8_MEMBER(ng_memcard_device::write) { m_memcard_data[offset] = data; }