parse arguments

.gitignore

@@ -5,5 +5,6 @@ build/
 # MacOS Cache
 .DS_Store
 
-test.bin
-.vscode
+.vscode
+
+a.out

src/Assembleur.cpp

@@ -78,16 +78,16 @@ std::uint32_t Assembleur::ParseOperationImmediate(
 }
 
 std::uint32_t Assembleur::ParseJump(Instruction a_Instruction, const std::string& a_Label) {
-	int jump = a_Instruction.m_Line - ParseLabel(a_Label);
+	std::int32_t jump = ParseLabel(a_Label) - a_Instruction.m_Line;
 	if (jump < 0)
-		jump = jump & 0x7FFFFFF | 0x4000000;
+		jump = std::abs(jump) & 0x7FFFFFF | 0x4000000;
 	return IToInt(a_Instruction) | jump;
 }
 
 std::uint32_t Assembleur::ParseJump(Instruction a_Instruction, std::uint8_t a_R1, std::uint8_t a_R2, const std::string& a_Label) {
-	int jump = a_Instruction.m_Line - ParseLabel(a_Label);
+	std::int32_t jump = ParseLabel(a_Label) - a_Instruction.m_Line;
 	if (jump < 0)
-		jump = jump & 0xFFFFF | 100000;
+		jump = std::abs(jump) & 0xFFFFF | 0x100000;
 	return IToInt(a_Instruction) | a_R1 << 24 | a_R2 << 21 | jump;
 }
 

src/IO.cpp

@@ -1,34 +1,66 @@
 #include "IO.h"
 
 #include "Assembleur.h"
+#include <bitset>
 #include <fstream>
 
 BinaryData ParseFile(const std::string& fileName) {
 	std::ifstream file{fileName};
 	std::uint32_t lineNumber = 0, realLineNumber = 0;
-	std::string line;
+	std::string currentLine;
+
+	std::vector<std::string> lines;
 
 	Assembleur assembleur;
 
 	BinaryData output;
 
-	while (getline(file, line)) {
+	// parsing labels
+	while (getline(file, currentLine)) {
+		lines.push_back(currentLine);
 		lineNumber++;
 		realLineNumber++;
 
-		if (line.find(":") != std::string::npos) {
-			std::string label = line.substr(0, line.size() - 1);
+		if (currentLine.find(":") != std::string::npos) {
+			std::string label = currentLine.substr(0, currentLine.size() - 1);
 			assembleur.AddLabel(label, lineNumber);
 			lineNumber--;
-		} else {
+		}
+	}
+
+	lineNumber = realLineNumber = 0;
+
+	// parsing instructions
+	for (std::string line : lines) {
+		lineNumber++;
+		realLineNumber++;
+
+		if (line.find(":") == std::string::npos) {
 			output.push_back(assembleur.ParseInstruction(line, lineNumber, realLineNumber));
+		} else {
+			lineNumber--;
 		}
 	}
 
 	return output;
 }
 
-void OutputFile(const BinaryData& a_Data, const std::string& fileName) {
+void OutputFileBinary(const BinaryData& a_Data, const std::string& fileName) {
 	std::ofstream file{fileName};
 	file.write(reinterpret_cast<const char*>(a_Data.data()), a_Data.size() * sizeof(a_Data.at(0)));
 }
+
+void OutputFileIntegers(const BinaryData& a_Data, const std::string& fileName) {
+	std::ofstream file{fileName};
+	for (std::uint32_t number : a_Data) {
+		file << number << "\n";
+	}
+}
+
+void OutputFileBinIntegers(const BinaryData& a_Data, const std::string& fileName) {
+	std::ofstream file{fileName};
+	for (std::uint32_t number : a_Data) {
+		file << std::bitset<8>(number >> 24) << " " << std::bitset<8>(number >> 16) << " " << std::bitset<8>(number >> 8) <<
+			" " << std::bitset<8>(number) << "\n";
+	}
+}

src/IO.h

@@ -7,4 +7,6 @@ using BinaryData = std::vector<std::uint32_t>;
 
 BinaryData ParseFile(const std::string& fileName);
 
-void OutputFile(const BinaryData& a_Data, const std::string& fileName);
+void OutputFileBinary(const BinaryData& a_Data, const std::string& fileName);
+void OutputFileIntegers(const BinaryData& a_Data, const std::string& fileName);
+void OutputFileBinIntegers(const BinaryData& a_Data, const std::string& fileName);

src/main.cpp

@@ -1,13 +1,51 @@
+#include <argparse/argparse.hpp>
 #include <iostream>
 
 #include "IO.h"
 
 int main(int argc, char** argv) {
 
-	try {
-		auto output = ParseFile("test.asm");
+	argparse::ArgumentParser program("Assembleur");
+
+	std::string inputFileName;
+	program.add_argument("file")
+		.help("The assembly file to compile")
+		.store_into(inputFileName);
+
+	std::string outputFileName;
+	program.add_argument("-o", "--output")
+		.help("Specify the output file.")
+		.metavar("file")
+		.default_value(std::string("a.out"))
+		.store_into(outputFileName);
+
+	std::string formatType;
+	program.add_argument("-f", "--format")
+		.help("Type of the output. [bin|int|binint]")
+		.metavar("type")
+		.default_value(std::string("binint"))
+		.choices("bin", "int", "binint")
+		.store_into(formatType);
+
+	try {
+		program.parse_args(argc, argv);
+	} catch (const std::exception& err) {
+		std::cerr << err.what() << std::endl;
+		std::cerr << program;
+		std::exit(1);
+	}
+
+	try {
+		auto output = ParseFile(inputFileName);
+
+		if (formatType == "bin") {
+			OutputFileBinary(output, outputFileName);
+		} else if (formatType == "int") {
+			OutputFileIntegers(output, outputFileName);
+		} else {
+			OutputFileBinIntegers(output, outputFileName);
+		}
 
-		OutputFile(output, "test.bin");
 	} catch (std::runtime_error& e) {
 		std::cerr << e.what() << std::endl;
 		return 1;

test.asm

@@ -10,11 +10,11 @@ io:
 	str R1 R2 R3
 	ld R1 R2 R3
 sauts:
-	jmp operations
+	jmp controle
 	jequ R1 R2 io
 	jneq R1 R2 sauts
 	jsup R1 R2 operations
-	jinf R1 R2 io
+	jinf R1 R2 controle
 controle:
 	call io
 	ret

xmake.lua

@@ -1,9 +1,12 @@
 add_rules("mode.debug", "mode.release")
 
+add_requires("argparse")
+
 target("Assembleur")
     set_kind("binary")
     add_files("src/*.cpp")
     set_rundir(".")
+    add_packages("argparse")
 
 --
 -- If you want to known more usage about xmake, please see https://xmake.io