//------------------------------------------------------------------------------------------------------------
private static EPML testProgramOne()
{
return(EPML.Make("Test Program One")
.Description("EPML program that reads two integers and computes their sum.")
.Add(+1007) // Read A
.Add(+1008) // Read B
.Add(+2007) // Load A
.Add(+3208) // Add B
.Add(+2109) // Store C
.Add(+1109) // Write C
.Add(+5000) // Halt
.Add(+0000) // Variable A
.Add(+0000) // Variable B
.Add(+0000)); // Result C
}
//------------------------------------------------------------------------------------------------------------
private static EPML testProgramTwo()
{
return(EPML.Make("Test Program Two")
.Description("EPML program that reads two numbers and displays the larger value")
.Add(+1009) // Read A
.Add(+1010) // Read B
.Add(+2009) // Load A
.Add(+3310) // Subtract B
.Add(+4107) // Branch negative to 07
.Add(+1109) // Write A
.Add(+5000) // Halt
.Add(+1110) // Write B
.Add(+5000) // Halt
.Add(+0000) // Variable A
.Add(+0000)); // Variable B
}
//------------------------------------------------------------------------------------------------------------
private static void runProgramFromFile(string filename, bool debugging = false)
{
// Assume that each line of the program file contains a location and instruction eg. 01 +1009
try
{
string[] lines = File.ReadAllLines(filename);
var vm = EPC.Make(debugging: debugging);
var program = EPML.Make().FillTo(vm.MemoryLimit).Load(lines);
Console.Clear();
vm.Run(program);
}
catch (IOException ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
//------------------------------------------------------------------------------------------------------------
private static EPML testProgramThree()
{
return(EPML.Make("Test Program Three")
.Description("EPML program that calculates several integers")
.Add(+1098)
.Add(+2098)
.Add(+3397)
.Add(+4211)
.Add(+2098)
.Add(+3098)
.Add(+2195)
.Add(+2095)
.Add(+2196)
.Add(+1196)
.Add(+4000)
.Add(+5000));
}
//------------------------------------------------------------------------------------------------------------
private EPC loadProgram(EPML program)
{
Console.WriteLine($"*** Loading {program.Name} into memory ***");
if (program.Description() != null && program.Description() != "")
{
Console.WriteLine($"*** {program.Description()} ***");
}
int max = _memory.Size();
for (int i = 0; i < max; ++i)
{
var instruction = program.Instructions[i];
_memory.Put(instruction, i);
}
Console.WriteLine("*** Program loading completed ***");
Console.WriteLine("*** Program execution begins ***");
execute();
return(this);
}
//------------------------------------------------------------------------------------------------------------
public EPC Run(EPML program)
{
_memory.Clear();
return(loadProgram(program));
}