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// Copyright (C) 2003 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 <iostream>
#include <vector>
#include "Common.h"
#include "FileUtil.h"
#include "StringUtil.h"
#include "DSPCodeUtil.h"
#include "assemble.h"
#include "disassemble.h"
bool Assemble(const char *text, std::vector<u16> &code, bool force)
{
AssemblerSettings settings;
// settings.pc = 0;
// settings.decode_registers = false;
// settings.decode_names = false;
settings.force = force;
// settings.print_tabs = false;
// settings.ext_separator = '\'';
// TODO: fix the terrible api of the assembler.
DSPAssembler assembler(settings);
if (!assembler.Assemble(text, code)) {
std::cerr << assembler.GetErrorString() << std::endl;
return false;
}
return true;
}
bool Disassemble(const std::vector<u16> &code, bool line_numbers, std::string &text)
{
if (code.empty())
return false;
AssemblerSettings settings;
// These two prevent roundtripping.
settings.show_hex = true;
settings.show_pc = line_numbers;
settings.ext_separator = '\'';
settings.decode_names = true;
settings.decode_registers = true;
DSPDisassembler disasm(settings);
bool success = disasm.Disassemble(0, code, 0x0000, text);
return success;
}
bool 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());
u32 count_equal = 0;
const int min_size = (int)std::min(code1.size(), code2.size());
AssemblerSettings settings;
DSPDisassembler disassembler(settings);
for (int i = 0; i < min_size; i++)
{
if (code1[i] == code2[i])
count_equal++;
else
{
std::string line1, line2;
u16 pc = i;
disassembler.DisOpcode(&code1[0], 0x0000, 2, &pc, line1);
pc = i;
disassembler.DisOpcode(&code2[0], 0x0000, 2, &pc, line2);
printf("!! %04x : %04x vs %04x - %s vs %s\n", i, code1[i], code2[i], line1.c_str(), line2.c_str());
}
}
if (code2.size() != code1.size())
{
printf("Extra code words:\n");
const std::vector<u16> &longest = code1.size() > code2.size() ? code1 : code2;
for (int i = min_size; i < (int)longest.size(); i++)
{
u16 pc = i;
std::string line;
disassembler.DisOpcode(&longest[0], 0x0000, 2, &pc, line);
printf("!! %s\n", line.c_str());
}
}
printf("Equal instruction words: %i / %i\n", count_equal, min_size);
return code1.size() == code2.size() && code1.size() == count_equal;
}
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(const std::vector<u16> &code, std::string _filename,
const char *name, std::string &header)
{
std::vector<u16> code_padded = code;
// Pad with nops to 32byte boundary
while (code_padded.size() & 0x7f)
code_padded.push_back(0);
char buffer[1024];
header.clear();
header.reserve(code_padded.size() * 4);
header.append("#define NUM_UCODES 1\n\n");
std::string filename;
SplitPath(_filename, NULL, &filename, NULL);
header.append(StringFromFormat("const char* UCODE_NAMES[NUM_UCODES] = {\"%s\"};\n\n", filename.c_str()));
header.append("const unsigned short dsp_code[NUM_UCODES][0x1000] = {\n");
header.append("\t{\n\t\t");
for (u32 j = 0; j < code_padded.size(); j++)
{
if (j && ((j & 15) == 0))
header.append("\n\t\t");
sprintf(buffer, "0x%04x, ", code_padded[j]);
header.append(buffer);
}
header.append("\n\t},\n");
header.append("};\n");
}
void CodesToHeader(const std::vector<u16> *codes, const std::vector<std::string>* filenames,
int numCodes, const char *name, std::string &header)
{
std::vector<std::vector<u16> > codes_padded;
char buffer[1024];
int reserveSize = 0;
for(int i = 0; i < numCodes; i++)
{
codes_padded.push_back(codes[i]);
// Pad with nops to 32byte boundary
while (codes_padded.at(i).size() & 0x7f)
codes_padded.at(i).push_back(0);
reserveSize += (int)codes_padded.at(i).size();
}
header.clear();
header.reserve(reserveSize * 4);
sprintf(buffer, "#define NUM_UCODES %d\n\n", numCodes);
header.append(buffer);
header.append("const char* UCODE_NAMES[NUM_UCODES] = {\n");
for (int i = 0; i < numCodes; i++)
{
std::string filename;
if (! SplitPath(filenames->at(i), NULL, &filename, NULL))
filename = filenames->at(i);
sprintf(buffer, "\t\"%s\",\n", filename.c_str());
header.append(buffer);
}
header.append("};\n\n");
header.append("const unsigned short dsp_code[NUM_UCODES][0x1000] = {\n");
for(int i = 0; i < numCodes; i++)
{
if(codes[i].size() == 0)
continue;
header.append("\t{\n\t\t");
for (u32 j = 0; j < codes_padded.at(i).size(); j++)
{
if (j && ((j & 15) == 0))
header.append("\n\t\t");
sprintf(buffer, "0x%04x, ", codes_padded.at(i).at(j));
header.append(buffer);
}
header.append("\n\t},\n");
}
header.append("};\n");
}
void CodeToBinaryStringBE(const std::vector<u16> &code, std::string &str)
{
str.resize(code.size() * 2);
for (int i = 0; i < (int)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 < (int)code.size(); i++)
{
code[i] = ((u16)(u8)str[i * 2 + 0] << 8) | ((u16)(u8)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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