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dolphin/Source/DSPTool/DSPTool.cpp

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// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <string>
#include <utility>
#include <vector>
#include "Common/CommonTypes.h"
#include "Common/FileUtil.h"
#include "Common/StringUtil.h"
#include "Core/DSP/DSPCodeUtil.h"
#include "Core/DSP/DSPDisassembler.h"
#include "Core/DSP/DSPHost.h"
#include "Core/DSP/DSPTables.h"
// Stub out the dsplib host stuff, since this is just a simple cmdline tools.
u8 DSP::Host::ReadHostMemory(u32 addr)
{
return 0;
}
void DSP::Host::WriteHostMemory(u8 value, u32 addr)
{
}
void DSP::Host::OSD_AddMessage(std::string str, u32 ms)
{
}
bool DSP::Host::OnThread()
{
return false;
}
bool DSP::Host::IsWiiHost()
{
return false;
}
void DSP::Host::CodeLoaded(const u8* ptr, size_t size)
{
}
void DSP::Host::InterruptRequest()
{
}
void DSP::Host::UpdateDebugger()
{
}
static std::string CodeToHeader(const std::vector<u16>& code, const std::string& filename)
{
std::vector<u16> code_padded = code;
// Pad with nops to 32byte boundary
while (code_padded.size() & 0x7f)
code_padded.push_back(0);
std::string header;
header.reserve(code_padded.size() * 4);
header.append("#define NUM_UCODES 1\n\n");
std::string filename_without_extension;
SplitPath(filename, nullptr, &filename_without_extension, nullptr);
header.append(StringFromFormat("const char* UCODE_NAMES[NUM_UCODES] = {\"%s\"};\n\n",
filename_without_extension.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");
header.append(StringFromFormat("0x%04x, ", code_padded[j]));
}
header.append("\n\t},\n");
header.append("};\n");
return header;
}
static std::string CodesToHeader(const std::vector<std::vector<u16>>& codes,
const std::vector<std::string>& filenames)
{
std::vector<std::vector<u16>> codes_padded;
std::size_t reserve_size = 0;
for (std::size_t i = 0; i < codes.size(); i++)
{
codes_padded.push_back(codes[i]);
// Pad with nops to 32byte boundary
while (codes_padded[i].size() & 0x7f)
codes_padded[i].push_back(0);
reserve_size += codes_padded[i].size();
}
std::string header;
header.reserve(reserve_size * 4);
header.append(StringFromFormat("#define NUM_UCODES %zu\n\n", codes.size()));
header.append("const char* UCODE_NAMES[NUM_UCODES] = {\n");
for (const std::string& in_filename : filenames)
{
std::string filename;
if (!SplitPath(in_filename, nullptr, &filename, nullptr))
filename = in_filename;
header.append(StringFromFormat("\t\"%s\",\n", filename.c_str()));
}
header.append("};\n\n");
header.append("const unsigned short dsp_code[NUM_UCODES][0x1000] = {\n");
for (std::size_t i = 0; i < codes.size(); i++)
{
if (codes[i].empty())
continue;
header.append("\t{\n\t\t");
for (std::size_t j = 0; j < codes_padded[i].size(); j++)
{
if (j && ((j & 15) == 0))
header.append("\n\t\t");
header.append(StringFromFormat("0x%04x, ", codes_padded[i][j]));
}
header.append("\n\t},\n");
}
header.append("};\n");
return header;
}
static void PerformBinaryComparison(const std::string& lhs, const std::string& rhs)
{
std::string binary_code;
File::ReadFileToString(lhs, binary_code);
const std::vector<u16> code1 = DSP::BinaryStringBEToCode(binary_code);
File::ReadFileToString(rhs, binary_code);
const std::vector<u16> code2 = DSP::BinaryStringBEToCode(binary_code);
DSP::Compare(code1, code2);
}
static void PrintResults(const std::string& input_name, const std::string& output_name,
bool print_results_srhack, bool print_results_prodhack)
{
std::string dumpfile;
File::ReadFileToString(input_name, dumpfile);
const std::vector<u16> reg_vector = DSP::BinaryStringBEToCode(dumpfile);
std::string results("Start:\n");
for (int initial_reg = 0; initial_reg < 32; initial_reg++)
{
results.append(StringFromFormat("%02x %04x ", initial_reg, reg_vector.at(initial_reg)));
if ((initial_reg + 1) % 8 == 0)
results.append("\n");
}
results.append("\n");
results.append("Step [number]:\n[Reg] [last value] [current value]\n\n");
for (unsigned int step = 1; step < reg_vector.size() / 32; step++)
{
bool changed = false;
u16 current_reg;
u16 last_reg;
u32 htemp;
// results.append(StringFromFormat("Step %3d: (CW 0x%04x) UC:%03d\n", step, 0x8fff+step,
// (step-1)/32));
results.append(StringFromFormat("Step %3d:\n", step));
for (int reg = 0; reg < 32; reg++)
{
if (reg >= 0x0c && reg <= 0x0f)
continue;
if (print_results_srhack && reg == 0x13)
continue;
if (print_results_prodhack && reg >= 0x15 && reg <= 0x17)
{
switch (reg)
{
case 0x15: // DSP_REG_PRODM
last_reg =
reg_vector.at((step * 32 - 32) + reg) + reg_vector.at((step * 32 - 32) + reg + 2);
current_reg = reg_vector.at(step * 32 + reg) + reg_vector.at(step * 32 + reg + 2);
break;
case 0x16: // DSP_REG_PRODH
htemp = ((reg_vector.at(step * 32 + reg - 1) + reg_vector.at(step * 32 + reg + 1)) &
~0xffff) >>
16;
current_reg = (u8)(reg_vector.at(step * 32 + reg) + htemp);
htemp =
((reg_vector.at(step * 32 - 32 + reg - 1) + reg_vector.at(step * 32 - 32 + reg + 1)) &
~0xffff) >>
16;
last_reg = (u8)(reg_vector.at(step * 32 - 32 + reg) + htemp);
break;
case 0x17: // DSP_REG_PRODM2
default:
current_reg = 0;
last_reg = 0;
break;
}
}
else
{
current_reg = reg_vector.at(step * 32 + reg);
last_reg = reg_vector.at((step * 32 - 32) + reg);
}
if (last_reg != current_reg)
{
results.append(StringFromFormat("%02x %-7s: %04x %04x\n", reg, DSP::pdregname(reg),
last_reg, current_reg));
changed = true;
}
}
if (changed)
results.append("\n");
else
results.append("No Change\n\n");
}
if (output_name.empty())
printf("%s", results.c_str());
else
File::WriteStringToFile(output_name, results);
}
static bool PerformDisassembly(const std::string& input_name, const std::string& output_name)
{
if (input_name.empty())
{
printf("Disassemble: Must specify input.\n");
return false;
}
std::string binary_code;
File::ReadFileToString(input_name, binary_code);
const std::vector<u16> code = DSP::BinaryStringBEToCode(binary_code);
std::string text;
DSP::Disassemble(code, true, text);
if (output_name.empty())
printf("%s", text.c_str());
else
File::WriteStringToFile(output_name, text);
printf("Disassembly completed successfully!\n");
return true;
}
static std::vector<std::string> GetAssemblerFiles(const std::string& source)
{
std::vector<std::string> files;
std::size_t last_pos = 0;
std::size_t pos = 0;
while ((pos = source.find('\n', last_pos)) != std::string::npos)
{
std::string temp = source.substr(last_pos, pos - last_pos);
if (!temp.empty())
files.push_back(std::move(temp));
last_pos = pos + 1;
}
return files;
}
static bool PerformAssembly(const std::string& input_name, const std::string& output_name,
const std::string& output_header_name, bool multiple, bool force,
bool output_size)
{
if (input_name.empty())
{
printf("Assemble: Must specify input.\n");
return false;
}
std::string source;
if (File::ReadFileToString(input_name, source))
{
if (multiple)
{
source.append("\n");
// When specifying a list of files we must compile a header
// (we can't assemble multiple files to one binary)
// since we checked it before, we assume output_header_name isn't empty
std::string currentSource;
const std::vector<std::string> files = GetAssemblerFiles(source);
std::size_t lines = files.size();
if (lines == 0)
{
printf("ERROR: Must specify at least one file\n");
return false;
}
std::vector<std::vector<u16>> codes(lines);
for (std::size_t i = 0; i < lines; i++)
{
if (!File::ReadFileToString(files[i], currentSource))
{
printf("ERROR reading %s, skipping...\n", files[i].c_str());
lines--;
}
else
{
if (!DSP::Assemble(currentSource, codes[i], force))
{
printf("Assemble: Assembly of %s failed due to errors\n", files[i].c_str());
lines--;
}
if (output_size)
{
printf("%s: %zu\n", files[i].c_str(), codes[i].size());
}
}
}
const std::string header = CodesToHeader(codes, files);
File::WriteStringToFile(output_header_name + ".h", header);
}
else
{
std::vector<u16> code;
if (!DSP::Assemble(source, code, force))
{
printf("Assemble: Assembly failed due to errors\n");
return false;
}
if (output_size)
{
printf("%s: %zu\n", input_name.c_str(), code.size());
}
if (!output_name.empty())
{
const std::string binary_code = DSP::CodeToBinaryStringBE(code);
File::WriteStringToFile(output_name, binary_code);
}
if (!output_header_name.empty())
{
const std::string header = CodeToHeader(code, input_name);
File::WriteStringToFile(output_header_name + ".h", header);
}
}
}
source.clear();
if (!output_size)
printf("Assembly completed successfully!\n");
return true;
}
static bool IsHelpFlag(const std::string& argument)
{
return argument == "--help" || argument == "-?";
}
// Usage:
// Disassemble a file:
// dsptool -d -o asdf.txt asdf.bin
// Disassemble a file, output to standard output:
// dsptool -d asdf.bin
// Assemble a file:
// dsptool [-f] -o asdf.bin asdf.txt
// Assemble a file, output header:
// dsptool [-f] -h asdf.h asdf.txt
// Print results from DSPSpy register dump
// dsptool -p dsp_dump0.bin
int main(int argc, const char* argv[])
{
if (argc == 1 || (argc == 2 && IsHelpFlag(argv[1])))
{
printf("USAGE: DSPTool [-?] [--help] [-f] [-d] [-m] [-p <FILE>] [-o <FILE>] [-h <FILE>] <DSP "
"ASSEMBLER FILE>\n");
printf("-? / --help: Prints this message\n");
printf("-d: Disassemble\n");
printf("-m: Input file contains a list of files (Header assembly only)\n");
printf("-s: Print the final size in bytes (only)\n");
printf("-f: Force assembly (errors are not critical)\n");
printf("-o <OUTPUT FILE>: Results from stdout redirected to a file\n");
printf("-h <HEADER FILE>: Output assembly results to a header\n");
printf("-p <DUMP FILE>: Print results of DSPSpy register dump\n");
printf("-ps <DUMP FILE>: Print results of DSPSpy register dump (disable SR output)\n");
printf("-pm <DUMP FILE>: Print results of DSPSpy register dump (convert PROD values)\n");
printf("-psm <DUMP FILE>: Print results of DSPSpy register dump (convert PROD values/disable "
"SR output)\n");
return 0;
}
std::string input_name;
std::string output_header_name;
std::string output_name;
bool disassemble = false, compare = false, multiple = false, outputSize = false, force = false,
print_results = false, print_results_prodhack = false, print_results_srhack = false;
for (int i = 1; i < argc; i++)
{
const std::string argument = argv[i];
if (argument == "-d")
{
disassemble = true;
}
else if (argument == "-o")
{
if (++i < argc)
output_name = argv[i];
}
else if (argument == "-h")
{
if (++i < argc)
output_header_name = argv[i];
}
else if (argument == "-c")
{
compare = true;
}
else if (argument == "-s")
{
outputSize = true;
}
else if (argument == "-m")
{
multiple = true;
}
else if (argument == "-f")
{
force = true;
}
else if (argument == "-p")
{
print_results = true;
}
else if (argument == "-ps")
{
print_results = true;
print_results_srhack = true;
}
else if (argument == "-pm")
{
print_results = true;
print_results_prodhack = true;
}
else if (argument == "-psm")
{
print_results = true;
print_results_srhack = true;
print_results_prodhack = true;
}
else
{
if (!input_name.empty())
{
printf("ERROR: Can only take one input file.\n");
return 1;
}
input_name = argv[i];
if (!File::Exists(input_name))
{
printf("ERROR: Input path does not exist.\n");
return 1;
}
}
}
if (multiple && (compare || disassemble || !output_name.empty() || input_name.empty()))
{
printf("ERROR: Multiple files can only be used with assembly "
"and must compile a header file.\n");
return 1;
}
if (compare)
{
PerformBinaryComparison(input_name, output_name);
return 0;
}
if (print_results)
{
PrintResults(input_name, output_name, print_results_srhack, print_results_prodhack);
return 0;
}
if (disassemble)
{
if (!PerformDisassembly(input_name, output_name))
return 1;
}
else
{
if (!PerformAssembly(input_name, output_name, output_header_name, multiple, force, outputSize))
return 1;
}
return 0;
}
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