92 lines
2.4 KiB
C++
92 lines
2.4 KiB
C++
// Copyright 2010 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "Core/HW/Sram.h"
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#include "Common/CommonTypes.h"
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#include "Common/File.h"
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#include "Common/Logging/Log.h"
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#include "Common/Swap.h"
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#include "Core/ConfigManager.h"
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// english
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const SRAM sram_dump = {{0x00, 0x2C, 0xFF, 0xD0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2C, 0x44, 0x4F,
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0x4C, 0x50, 0x48, 0x49, 0x4E, 0x53, 0x4C, 0x4F, 0x54, 0x41, 0x44,
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0x4F, 0x4C, 0x50, 0x48, 0x49, 0x4E, 0x53, 0x4C, 0x4F, 0x54, 0x42,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x6E, 0x6D, 0x00, 0x00, 0x00, 0x00}};
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#if 0
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// german
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const SRAM sram_dump_german = {{
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0x1F, 0x66,
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0xE0, 0x96,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x04, 0xEA, 0x19, 0x40,
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0x00,
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0x00,
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0x01,
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0x3C,
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0x12, 0xD5, 0xEA, 0xD3, 0x00, 0xFA, 0x2D, 0x33, 0x13, 0x41, 0x26, 0x03,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00,
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0x00, 0x00,
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0x00, 0x00,
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0x00, 0x00,
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0x00,
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0x00,
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0x84, 0xFF,
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0x00, 0x00,
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0x00, 0x00
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}};
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#endif
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void InitSRAM()
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{
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File::IOFile file(SConfig::GetInstance().m_strSRAM, "rb");
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if (file)
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{
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if (!file.ReadArray(&g_SRAM, 1))
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{
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ERROR_LOG(EXPANSIONINTERFACE, "EXI IPL-DEV: Could not read all of SRAM");
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g_SRAM = sram_dump;
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}
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}
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else
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{
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g_SRAM = sram_dump;
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}
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}
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void SetCardFlashID(const u8* buffer, u8 card_index)
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{
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u64 rand = Common::swap64(&buffer[12]);
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u8 csum = 0;
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for (int i = 0; i < 12; i++)
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{
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rand = (((rand * (u64)0x0000000041c64e6dULL) + (u64)0x0000000000003039ULL) >> 16);
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csum += g_SRAM.flash_id[card_index][i] = buffer[i] - ((u8)rand & 0xff);
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rand = (((rand * (u64)0x0000000041c64e6dULL) + (u64)0x0000000000003039ULL) >> 16);
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rand &= (u64)0x0000000000007fffULL;
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}
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g_SRAM.flashID_chksum[card_index] = csum ^ 0xFF;
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}
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void FixSRAMChecksums()
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{
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u16 checksum = 0;
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u16 checksum_inv = 0;
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for (int i = 0x0C; i < 0x14; i += 2)
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{
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int value = (g_SRAM.p_SRAM[i] << 8) + g_SRAM.p_SRAM[i + 1];
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checksum += value;
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checksum_inv += value ^ 0xFFFF;
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}
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g_SRAM.checksum = Common::swap16(checksum);
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g_SRAM.checksum_inv = Common::swap16(checksum_inv);
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}
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