148 lines
4.1 KiB
C++
148 lines
4.1 KiB
C++
// Copyright (C) 2003-2009 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include <vector>
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#include "Common.h"
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#include "FileUtil.h"
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#include "DSPCodeUtil.h"
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#include "assemble.h"
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#include "disassemble.h"
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bool Assemble(const char *text, std::vector<u16> *code)
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{
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AssemblerSettings settings;
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settings.pc = 0;
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// settings.decode_registers = false;
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// settings.decode_names = false;
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settings.print_tabs = false;
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settings.ext_separator = '\'';
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// TODO: fix the terrible api of the assembler.
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DSPAssembler assembler(settings);
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if (!assembler.Assemble(text, code))
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printf("%s", assembler.GetErrorString().c_str());
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return true;
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}
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bool Disassemble(const std::vector<u16> &code, bool line_numbers, std::string *text)
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{
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if (code.empty())
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return false;
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AssemblerSettings settings;
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// These two prevent roundtripping.
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settings.show_hex = false;
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settings.show_pc = line_numbers;
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settings.ext_separator = '\'';
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settings.decode_names = false;
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settings.decode_registers = true;
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DSPDisassembler disasm(settings);
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bool success = disasm.Disassemble(0, code, text);
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return success;
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}
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bool Compare(const std::vector<u16> &code1, const std::vector<u16> &code2)
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{
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if (code1.size() != code2.size())
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printf("Size difference! 1=%i 2=%i\n", (int)code1.size(), (int)code2.size());
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int count_equal = 0;
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const int min_size = (int)std::min(code1.size(), code2.size());
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for (int i = 0; i < min_size; i++)
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{
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if (code1[i] == code2[i])
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count_equal++;
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else
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printf("!! %04x : %04x vs %04x\n", i, code1[i], code2[i]);
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}
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printf("Equal instruction words: %i / %i\n", count_equal, min_size);
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return code1.size() == code2.size() && code1.size() == count_equal;
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}
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void GenRandomCode(int size, std::vector<u16> *code)
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{
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code->resize(size);
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for (int i = 0; i < size; i++)
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{
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(*code)[i] = rand() ^ (rand() << 8);
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}
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}
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void CodeToHeader(const std::vector<u16> &code, const char *name, std::string *header)
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{
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char buffer[1024];
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header->clear();
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header->reserve(code.size() * 4);
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header->append("#ifndef _MSCVER\n");
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sprintf(buffer, "const __declspec(align:64) unsigned short %s = {\n");
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header->append(buffer);
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header->append("#else\n");
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sprintf(buffer, "const unsigned short %s __attribute__(aligned:64) = {\n");
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header->append(buffer);
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header->append("#endif\n\n ");
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for (int i = 0; i < code.size(); i++)
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{
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if (((i + 1) & 15) == 0)
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header->append("\n ");
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sprintf(buffer, "%02x, ", code[i]);
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header->append(buffer);
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}
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header->append("\n};\n");
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}
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void CodeToBinaryStringBE(const std::vector<u16> &code, std::string *str)
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{
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str->resize(code.size() * 2);
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for (int i = 0; i < code.size(); i++)
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{
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(*str)[i * 2 + 0] = code[i] >> 8;
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(*str)[i * 2 + 1] = code[i] & 0xff;
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}
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}
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void BinaryStringBEToCode(const std::string &str, std::vector<u16> *code)
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{
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code->resize(str.size() / 2);
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for (int i = 0; i < code->size(); i++)
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{
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(*code)[i] = ((u16)(u8)str[i * 2 + 0] << 8) | ((u16)(u8)str[i * 2 + 1]);
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}
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}
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bool LoadBinary(const char *filename, std::vector<u16> *code)
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{
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std::string buffer;
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if (!File::ReadFileToString(false, filename, &buffer))
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return false;
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BinaryStringBEToCode(buffer, code);
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return true;
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}
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bool SaveBinary(const std::vector<u16> &code, const char *filename)
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{
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std::string buffer;
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CodeToBinaryStringBE(code, &buffer);
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if (!File::WriteStringToFile(false, buffer, filename))
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return false;
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return true;
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}
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