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program.cs
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// simple-emu-c64.cs - Program.Main()
//
////////////////////////////////////////////////////////////////////////////////
//
// simple-emu-c64
// C64/6502 Emulator for Microsoft Windows Console
//
// MIT License
//
// Copyright (c) 2020-2023 by David R.Van Wagner
// davevw.com
//
// 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.
//
////////////////////////////////////////////////////////////////////////////////
using System;
using System.Collections.Generic;
using System.IO;
namespace simple_emu_c64
{
class Program
{
static public ushort go_num = 0;
private enum CBMmodel
{
invalid = 0,
c64 = 1,
vic20 = 2,
pet = 3,
ted = 4,
c16 = 5,
plus4 = 6,
c128 = 7,
test = 8,
};
private enum Keyword
{
unspecified = 0,
help = 1,
ram = 2,
walk = 3,
}
static void Main(string[] args)
{
// recommend get basic, kernal, etc. ROM files from a emulator such as https://vice-emu.sourceforge.io/index.html#download
Emu6502 cbm = null;
bool error = false;
int ram_size = 0;
var model = CBMmodel.invalid;
var keyword = Keyword.unspecified;
var walkAddrs = new List<ushort>();
var startupPRG = null as string;
var encodingSpecified = false;
var traceOption = false;
var quietOption = false;
CBM_Console.CBMEncoding encoding = CBM_Console.CBMEncoding.ascii;
try
{
for (int i = 0; i < args.Length; ++i)
{
if (args[i].Length == 0)
{
error = true;
continue;
}
if (int.TryParse(args[i], out _))
{
if (model != CBMmodel.invalid)
{
error = true;
continue;
}
var valueModel = int.Parse(args[i]);
switch (valueModel)
{
case 4:
model = CBMmodel.plus4;
break;
case 16:
model = CBMmodel.c16;
break;
case 20:
model = CBMmodel.vic20;
break;
case 64:
model = CBMmodel.c64;
break;
case 128:
model = CBMmodel.c128;
break;
case 2001:
model = CBMmodel.pet;
break;
default:
error = true;
break;
}
continue;
}
if (model == CBMmodel.invalid && Enum.TryParse(args[i], ignoreCase: true, out model))
{
if (model == CBMmodel.invalid)
{
error = true;
break;
}
continue;
}
if (keyword == Keyword.unspecified && Enum.TryParse(args[i], ignoreCase: true, out keyword))
{
if (keyword == Keyword.walk)
{
for (int j = i + 1; j < args.Length; ++j)
walkAddrs.Add(ParseAddr(args[j]));
break;
}
if (keyword == Keyword.ram)
{
ram_size = int.Parse(args[++i]) * 1024;
continue;
}
}
if (!encodingSpecified && Enum.TryParse(args[i], ignoreCase: true, out encoding))
{
encodingSpecified = true;
continue;
}
if (!CBM_Console.Color && string.Compare(args[i], "color", ignoreCase: true) == 0)
{
CBM_Console.Color = true;
continue;
}
if (string.Compare(args[i], "trace", ignoreCase: true) == 0)
{
traceOption = true;
continue;
}
if (string.Compare(args[i], "quiet", ignoreCase: true) == 0)
{
quietOption = true;
continue;
}
if (File.Exists(args[i]) || File.Exists(args[i] + ".PRG"))
{
startupPRG = args[i];
continue;
}
error = true;
break;
}
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.ToString());
error = true;
}
if (model == CBMmodel.invalid)
model = CBMmodel.c64;
if (model == CBMmodel.c64)
{
if (CBM_Console.Color)
{
Console.BackgroundColor = ConsoleColor.DarkBlue;
Console.ForegroundColor = ConsoleColor.Blue;
Console.Clear();
}
if (ram_size == 0)
ram_size = 64 * 1024;
if (File.Exists("basic") && File.Exists("kernal") && (!File.Exists($"c64{Path.DirectorySeparatorChar}basic") || !File.Exists($"c64{Path.DirectorySeparatorChar}kernal")))
cbm = new EmuC64(ram_size: ram_size, basic_file: "basic", chargen_file: $"c64{Path.DirectorySeparatorChar}chargen", kernal_file: "kernal");
else
cbm = new EmuC64(ram_size: ram_size, basic_file: $"c64{Path.DirectorySeparatorChar}basic", chargen_file: $"c64{Path.DirectorySeparatorChar}chargen", kernal_file: $"c64{Path.DirectorySeparatorChar}kernal");
((EmuC64)cbm).StartupPRG = startupPRG;
}
else if (model == CBMmodel.vic20)
{
if (CBM_Console.Color)
{
Console.BackgroundColor = ConsoleColor.White;
Console.ForegroundColor = ConsoleColor.DarkBlue;
Console.Clear();
}
cbm = new EmuVIC20(ram_size: ram_size, char_file: $"vic20{Path.DirectorySeparatorChar}chargen", basic_file: $"vic20{Path.DirectorySeparatorChar}basic", kernal_file: $"vic20{Path.DirectorySeparatorChar}kernal");
}
else if (model == CBMmodel.c16)
{
if (CBM_Console.Color)
{
Console.BackgroundColor = ConsoleColor.White;
Console.ForegroundColor = ConsoleColor.Black;
Console.Clear();
}
if (ram_size == 0)
ram_size = 16 * 1024;
cbm = new EmuTED(ram_size: ram_size, basic_file: $"ted{Path.DirectorySeparatorChar}basic", kernal_file: $"ted{Path.DirectorySeparatorChar}kernal");
((EmuTED)cbm).StartupPRG = startupPRG;
}
else if (model == CBMmodel.plus4 || model == CBMmodel.ted)
{
if (CBM_Console.Color)
{
Console.BackgroundColor = ConsoleColor.White;
Console.ForegroundColor = ConsoleColor.Black;
Console.Clear();
}
if (ram_size == 0)
ram_size = 64 * 1024;
cbm = new EmuTED(ram_size: ram_size, basic_file: $"ted{Path.DirectorySeparatorChar}basic", kernal_file: $"ted{Path.DirectorySeparatorChar}kernal");
((EmuTED)cbm).StartupPRG = startupPRG;
}
else if (model == CBMmodel.pet)
{
if (CBM_Console.Color)
{
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.Green;
Console.Clear();
}
if (ram_size == 0)
ram_size = 8 * 1024;
cbm = new EmuPET(ram_size: ram_size, basic_file: $"pet{Path.DirectorySeparatorChar}basic1", edit_file: $"pet{Path.DirectorySeparatorChar}edit1g", kernal_file: $"pet{Path.DirectorySeparatorChar}kernal1");
}
else if (model == CBMmodel.c128)
{
if (CBM_Console.Color)
{
Console.BackgroundColor = ConsoleColor.DarkCyan;
Console.ForegroundColor = ConsoleColor.Green;
Console.Clear();
}
cbm = new EmuC128(basic_lo_file: $"c128{Path.DirectorySeparatorChar}basiclo", basic_hi_file: $"c128{Path.DirectorySeparatorChar}basichi", chargen_file: $"c128{Path.DirectorySeparatorChar}chargen", kernal_file: $"c128{Path.DirectorySeparatorChar}kernal");
}
else if (model == CBMmodel.test)
{
cbm = new EmuTest(startupPRG);
}
if (cbm != null && encodingSpecified)
CBM_Console.Encoding = encoding;
if (cbm != null && traceOption)
cbm.trace = true;
if (!quietOption)
{
Console.Error.WriteLine("6502 Emulator for Windows Console");
Console.Error.WriteLine("C64, VIC-20, PET, TED, C128, ...");
Console.Error.WriteLine("");
Console.Error.WriteLine("simple-emu-c64 version 1.8.10");
Console.Error.WriteLine("Copyright (c) 2022 David R. Van Wagner");
Console.Error.WriteLine("davevw.com");
Console.Error.WriteLine("Open Source, MIT License");
Console.Error.WriteLine("github.com/davervw/simple-emu-c64");
Console.Error.WriteLine("");
}
if (args.Length == 0 || error || keyword == Keyword.help) // if no arguments present, then show usage as well
{
Console.Error.WriteLine("");
Console.Error.WriteLine("Usage:");
Console.Error.WriteLine(" simple-emu-c64 (no arguments pauses, then starts c64)");
Console.Error.WriteLine(" simple-emu-c64 help (shows usage)");
Console.Error.WriteLine(" simple-emu-c64 [system] {ram #} (system=[c64|vic20|pet|c16|plus4|ted|c128])");
Console.Error.WriteLine(" simple-emu-c64 [system] walk [addr1 ...]");
Console.Error.WriteLine(" simple-emu-c64 [c64|ted] file (autorun prg)");
Console.Error.WriteLine(" simple-emu-c64 [c64|...] color petscii quiet (use C64 Pro Mono font https://style64.org/c64-truetype)");
Console.Error.WriteLine("");
Console.WriteLine();
}
if (error)
return;
if (keyword == Keyword.help)
return;
if (keyword == Keyword.walk)
{
if (walkAddrs.Count == 0)
{
cbm.Walk();
return;
}
Walk6502.Reset();
foreach (var addr in walkAddrs)
Walk6502.Walk(cbm, addr);
return;
}
while (true)
{
CBM_Console.Lowercase = false;
cbm.ResetRun();
if (go_num == 0)
{
Console.WriteLine("BYE.");
break;
}
if (go_num != 2001 && go_num != 20 && go_num != 64 && go_num != 16 && go_num != 4 && go_num != 128)
{
Console.WriteLine("INVALID QUANTITY ERROR");
break;
}
float ram_kilobytes = 0;
if (go_num != 128)
{
Console.Write("RAM (in kilobytes)? ");
string line = Console.ReadLine();
if (!float.TryParse(line, out ram_kilobytes))
{
Console.WriteLine("TYPE MISMATCH ERROR");
break;
}
}
ram_size = (int)(ram_kilobytes * 1024);
try
{
if (go_num == 2001)
{
if (CBM_Console.Color)
{
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.Green;
Console.Clear();
}
cbm = new EmuPET(ram_size: ram_size, basic_file: $"pet{Path.DirectorySeparatorChar}basic1", edit_file: $"pet{Path.DirectorySeparatorChar}edit1g", kernal_file: $"pet{Path.DirectorySeparatorChar}kernal1");
}
else if (go_num == 20)
cbm = new EmuVIC20(ram_size: ram_size, char_file: $"vic20{Path.DirectorySeparatorChar}chargen", basic_file: $"vic20{Path.DirectorySeparatorChar}basic", kernal_file: $"vic20{Path.DirectorySeparatorChar}kernal");
else if (go_num == 128)
cbm = new EmuC128(basic_lo_file: $"c128{Path.DirectorySeparatorChar}basiclo", basic_hi_file: $"c128{Path.DirectorySeparatorChar}basichi", chargen_file: $"c128{Path.DirectorySeparatorChar}chargen", kernal_file: $"c128{Path.DirectorySeparatorChar}kernal");
else if (go_num == 64)
{
if (File.Exists("basic") && File.Exists("kernal") && (!File.Exists($"c64{Path.DirectorySeparatorChar}basic") || !File.Exists($"c64{Path.DirectorySeparatorChar}kernal")))
cbm = new EmuC64(ram_size: ram_size, basic_file: "basic", chargen_file: $"c64{Path.DirectorySeparatorChar}chargen", kernal_file: "kernal");
else
cbm = new EmuC64(ram_size: ram_size, basic_file: $"c64{Path.DirectorySeparatorChar}basic", chargen_file: $"c64{Path.DirectorySeparatorChar}chargen", kernal_file: $"c64{Path.DirectorySeparatorChar}kernal");
}
else if (go_num == 16 || go_num == 4)
{
cbm = new EmuTED(ram_size: ram_size, basic_file: $"ted{Path.DirectorySeparatorChar}basic", kernal_file: $"ted{Path.DirectorySeparatorChar}kernal");
}
}
catch (Exception ex)
{
Console.Write(ex.Message);
break;
}
}
}
static ushort ParseAddr(string str_addr)
{
try
{
if (str_addr.ToLower().StartsWith("0x"))
str_addr = str_addr.Substring(2);
else if (str_addr.StartsWith("$") || str_addr.StartsWith("x"))
str_addr = str_addr.Substring(1);
return ushort.Parse(str_addr, System.Globalization.NumberStyles.HexNumber);
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.ToString());
throw new InvalidOperationException("Hex address expected, optionally preceeded by $ or 0x or x");
}
}
}
}