dolphin/Source/Plugins/Plugin_DSP_LLE/Src/Tools.cpp

111 lines
2.5 KiB
C++

// Copyright (C) 2003-2009 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include <stdio.h>
#include <stdlib.h>
#include "Common.h"
#include "Globals.h"
#include "FileUtil.h"
#include "DSPCodeUtil.h"
#include "Tools.h"
#include "disassemble.h"
#include "gdsp_interpreter.h"
bool DumpDSPCode(const u8 *code_be, int size_in_bytes, u32 crc)
{
char binFile[MAX_PATH];
char txtFile[MAX_PATH];
sprintf(binFile, "%sDSP_UC_%08X.bin", FULL_DSP_DUMP_DIR, crc);
sprintf(txtFile, "%sDSP_UC_%08X.txt", FULL_DSP_DUMP_DIR, crc);
FILE* pFile = fopen(binFile, "wb");
if (pFile)
{
fwrite(code_be, size_in_bytes, 1, pFile);
fclose(pFile);
}
else
{
PanicAlert("Cant open file (%s) to dump UCode!!", binFile);
return false;
}
// Load the binary back in.
std::vector<u16> code;
LoadBinary(binFile, &code);
AssemblerSettings settings;
settings.show_hex = true;
settings.show_pc = true;
settings.ext_separator = '\t';
settings.decode_names = true;
settings.decode_registers = true;
std::string text;
DSPDisassembler disasm(settings);
if (!disasm.Disassemble(0, code, &text))
return false;
return File::WriteStringToFile(true, text, txtFile);
}
u32 GenerateCRC(const unsigned char* _pBuffer, int _pLength)
{
unsigned long CRC = 0xFFFFFFFF;
while (_pLength--)
{
unsigned long Temp = (unsigned long)((CRC & 0xFF) ^ *_pBuffer++);
for (int j = 0; j < 8; j++)
{
if (Temp & 0x1)
Temp = (Temp >> 1) ^ 0xEDB88320;
else
Temp >>= 1;
}
CRC = (CRC >> 8) ^ Temp;
}
return CRC ^ 0xFFFFFFFF;
}
// TODO make this useful :p
bool DumpCWCode(u32 _Address, u32 _Length)
{
char filename[256];
sprintf(filename, "%sDSP_UCode.bin", FULL_DSP_DUMP_DIR);
FILE* pFile = fopen(filename, "wb");
if (pFile != NULL)
{
for (size_t i = _Address; i < _Address + _Length; i++)
{
u16 val = g_dsp.iram[i];
fprintf(pFile, " cw 0x%04x \n", val);
}
fclose(pFile);
return true;
}
return false;
}