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// 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 <vector>
#include "Common.h"
#include "FileUtil.h"
#include "DSPCodeUtil.h"
#include "assemble.h"
#include "disassemble.h"
bool Assemble(const char *text, std::vector<u16> *code)
{
const char *fname = "tmp.asm";
gd_globals_t gdg;
memset(&gdg, 0, sizeof(gdg));
gdg.pc = 0;
// gdg.decode_registers = false;
// gdg.decode_names = false;
gdg.print_tabs = false;
gdg.ext_separator = '\'';
gdg.buffer = 0;
if (!File::WriteStringToFile(true, text, fname))
return false;
// TODO: fix the terrible api of the assembler.
gd_ass_init_pass(1);
if (!gd_ass_file(&gdg, fname, 1))
return false;
gd_ass_init_pass(2);
if (!gd_ass_file(&gdg, fname, 2))
return false;
code->resize(gdg.buffer_size);
for (int i = 0; i < gdg.buffer_size; i++) {
(*code)[i] = *(u16 *)(gdg.buffer + i * 2);
}
return true;
}
bool Disassemble(const std::vector<u16> &code, std::string *text)
{
if (code.empty())
return false;
const char *tmp1 = "tmp1.bin";
const char *tmp2 = "tmp.txt";
// First we have to dump the code to a bin file.
FILE *f = fopen(tmp1, "wb");
fwrite(&code[0], 1, code.size() * 2, f);
fclose(f);
FILE* t = fopen(tmp2, "w");
if (t != NULL)
{
gd_globals_t gdg;
memset(&gdg, 0, sizeof(gdg));
// These two prevent roundtripping.
gdg.show_hex = false;
gdg.show_pc = false;
gdg.ext_separator = '\'';
gdg.decode_names = false;
gdg.decode_registers = true;
bool success = gd_dis_file(&gdg, tmp1, t);
fclose(t);
File::ReadFileToString(true, tmp2, text);
return success;
}
return false;
}
void Compare(const std::vector<u16> &code1, const std::vector<u16> &code2)
{
if (code1.size() != code2.size())
printf("Size difference! 1=%i 2=%i\n", (int)code1.size(), (int)code2.size());
int count_equal = 0;
const int min_size = std::min(code1.size(), code2.size());
for (int i = 0; i < min_size; i++)
{
if (code1[i] == code2[i])
count_equal++;
else
printf("!! %04x : %04x vs %04x\n", i, code1[i], code2[i]);
}
printf("Equal instruction words: %i / %i\n", count_equal, min_size);
}
void GenRandomCode(int size, std::vector<u16> *code)
{
code->resize(size);
for (int i = 0; i < size; i++)
{
(*code)[i] = rand() ^ (rand() << 8);
}
}
void CodeToHeader(std::vector<u16> *code, const char *name, std::string *header)
{
char buffer[1024];
header->clear();
header->reserve(code->size() * 4);
header->append("#ifndef _MSCVER\n");
sprintf(buffer, "const __declspec(align:64) unsigned short %s = {\n");
header->append(buffer);
header->append("#else\n");
sprintf(buffer, "const unsigned short %s __attribute__(aligned:64) = {\n");
header->append(buffer);
header->append("#endif\n\n ");
for (int i = 0; i < code->size(); i++)
{
if (((i + 1) & 15) == 0)
header->append("\n ");
sprintf(buffer, "%02x, ", code[i]);
header->append(buffer);
}
header->append("\n};\n");
}
void CodeToBinaryStringBE(const std::vector<u16> &code, std::string *str)
{
str->resize(code.size() * 2);
for (int i = 0; i < code.size(); i++)
{
(*str)[i * 2 + 0] = code[i] >> 8;
(*str)[i * 2 + 1] = code[i] & 0xff;
}
}
void BinaryStringBEToCode(const std::string &str, std::vector<u16> *code)
{
code->resize(str.size() / 2);
for (int i = 0; i < code->size(); i++)
{
(*code)[i] = (str[i * 2 + 0] << 8) | (str[i * 2 + 1]);
}
}
bool LoadBinary(const char *filename, std::vector<u16> *code)
{
std::string buffer;
if (!File::ReadFileToString(false, filename, &buffer))
return false;
BinaryStringBEToCode(buffer, code);
return true;
}
bool SaveBinary(const std::vector<u16> &code, const char *filename)
{
std::string buffer;
CodeToBinaryStringBE(code, &buffer);
if (!File::WriteStringToFile(false, buffer, filename))
return false;
return true;
}
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