alpha #1 // Add .gitattributes, .gitignore, README.md, and LICENSE.txt.

.gitattributes

@@ -0,0 +1,63 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+#*.sln       merge=binary
+#*.csproj    merge=binary
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

.gitignore

@@ -0,0 +1,32 @@
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app

LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) [year] [fullname]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1 @@
+# Simpletron

Simpletron.cpp

@@ -0,0 +1,164 @@
+/* ************************************************************
+	Simpletron v1.0
+	Author: Arthur Brenno, 2023
+	github: arthurbrenno
+	public release date: 2023-05-09
+
+	Changes:
+	2023-05-06: started the main code
+	2023-05-09 alpha program DONE. no bugs found yet.
+ ************************************************************ */
+
+#include <iostream>
+#include <string>
+#include "s_operations.h"
+#include "s_instruction_handler.h"
+#include "s_specs.h"
+#if defined _WIN32
+#define Clear() system("cls")
+#else
+#define Clear() system("clear")
+#endif
+
+void WelcomeMessage();
+void LoadingComplete();
+bool AskForInteger(const std::string& input, int& destination);
+
+int main() {
+
+	WelcomeMessage();
+	int memory[mem_size]{};						//Memory of the machine
+
+	//Fill the memory with instructions
+	for (int i{ 0 }; i < mem_size; ++i) {
+		int current_instruction{};
+		bool success{};
+
+		while (
+			(GetDigits(current_instruction) != qtd_digits
+			&& current_instruction != stop_sentinel) 
+			|| !success) {
+
+			printf("%02d ? ", i);
+			std::string input{};
+			std::cin >> input;
+			success = AskForInteger(input, current_instruction);
+		}
+
+		memory[i] = current_instruction;
+
+		if (current_instruction == stop_sentinel 
+			|| ExtractOperation(current_instruction) == Simpletron::toc::halt) { break; }
+
+	}
+
+	Clear();
+	LoadingComplete();
+
+	int instruction_counter{};
+	int instruction_register{};
+	int operation_code{};
+	int operand{};
+	int eax{};
+	while (instruction_register != stop_sentinel 
+		&& ExtractOperation(instruction_register) != Simpletron::toc::halt) {
+
+		instruction_register = memory[instruction_counter];
+		operation_code = ExtractOperation(instruction_register);
+		operand = ExtractOperand(instruction_register);
+		switch (operation_code) {
+		case Simpletron::io::read: {
+			bool success{};
+			int integer{};
+			while (!success) {
+				std::cout << "Enter an Integer: ";
+				std::string temp;
+				std::cin >> temp;
+				success = AskForInteger(temp, integer);
+			}
+			memory[operand] = integer;
+			instruction_counter++; break;
+		}
+		case Simpletron::io::write: {
+			std::cout << memory[operand] << std::endl; instruction_counter++; break;
+		}
+		case Simpletron::ls::load: {
+			eax = memory[operand]; instruction_counter++; break;
+		}
+		case Simpletron::ls::store: {
+			memory[operand] = eax; instruction_counter++; break;
+		}
+		case Simpletron::arithmetic::add: {
+			eax += memory[operand]; instruction_counter++; break;
+		}
+		case Simpletron::arithmetic::sub: {
+			eax -= memory[operand]; instruction_counter++; break;
+		}
+		case Simpletron::arithmetic::div: {
+			eax /= memory[operand]; instruction_counter++; break;
+		}
+		case Simpletron::arithmetic::imul: {
+			eax *= memory[operand]; instruction_counter++; break;
+		}
+		case Simpletron::arithmetic::mod: {
+			eax %= memory[operand]; instruction_counter++; break;
+		}
+		case Simpletron::arithmetic::exp: {
+			eax = std::pow(eax, memory[operand]); instruction_counter++; break;
+		}
+		case Simpletron::toc::branch: {
+			instruction_counter = operand; break;
+		}
+		case Simpletron::toc::branchneg: {
+			if (eax < 0) { instruction_counter = operand; break; }
+			instruction_counter++; break;
+		}
+		case Simpletron::toc::branchzero: {
+			if (eax == 0) { instruction_counter = operand; break; }
+			instruction_counter++; break;
+		}
+		case Simpletron::toc::halt: {
+			system("exit"); break;
+		}
+		default:
+			instruction_counter++;
+		}
+	}
+
+	Dump(
+		memory, 
+		sizeof(memory) / sizeof(memory[0]), 
+		eax, instruction_counter, 
+		instruction_register, 
+		operation_code, 
+		operand);
+	std::cout << std::endl;
+	system("pause");
+}
+
+//first program message
+void WelcomeMessage() {
+	std::cout << "*** Welcome to Simpletron! ***" << '\n';
+	std::cout << "*** Please enter your program one instruction ***" << '\n';
+	std::cout << "*** (or data word) at a time. I will display ***" << '\n';
+	std::cout << "*** the location number and a question mark (?). ***  ***" << '\n';
+	std::cout << "*** You then type the word for that location. ***" << '\n';
+	std::cout << "*** Type -99999 to stop entering your program. ***" << '\n';
+}
+
+//instruction loading complete
+void LoadingComplete() {
+	std::cout << "***Program loading completed ***" << '\n' 
+	<< "***Program execution begins***" << '\n';
+}
+
+//Get a valid integer input
+bool AskForInteger(const std::string& input, int& destination) {
+	try {
+		int temp{ std::stoi(input) };
+		destination = temp;
+		return true;
+	}
+	catch (const std::exception e) { return false; }
+}
+

Simpletron.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.33627.172
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Simpletron", "Simpletron.vcxproj", "{40794D47-D254-4A4C-9FD4-1A91129B4713}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Debug|x64.ActiveCfg = Debug|x64
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Debug|x64.Build.0 = Debug|x64
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Debug|x86.ActiveCfg = Debug|Win32
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Debug|x86.Build.0 = Debug|Win32
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Release|x64.ActiveCfg = Release|x64
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Release|x64.Build.0 = Release|x64
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Release|x86.ActiveCfg = Release|Win32
+		{40794D47-D254-4A4C-9FD4-1A91129B4713}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {172BE9E7-5FA1-4B43-AFAC-969C93B3EA63}
+	EndGlobalSection
+EndGlobal