internal static MediaTarget FromText(string from)
{
var mediaTarget = new MediaTarget();
mediaTarget.Coordinate = MemoryCoordinate.FromText(from);
return(mediaTarget);
}
public override void Run(Process scenario, CpuCommandContext context)
{
var advanceAmountRaw = Amount.ReadFromTarget(scenario, context);
var advanceAmount = Int32.Parse(advanceAmountRaw);
var currentValue = Target.ReadFromTarget(scenario, context);
var currentMediaTarget = MediaTarget.FromText(currentValue);
AddressableRegion region;
if (currentMediaTarget.Coordinate.DriveId == null)
{
region = scenario.Memory;
}
else
{
region = context.Scenario.Disks[currentMediaTarget.Coordinate.DriveId.Value];
}
Console.WriteLine($"Seeking {currentMediaTarget.Coordinate} by {advanceAmount}");
//0:0A0:1A
var current = currentMediaTarget.Coordinate;
for (int i = 0; i < advanceAmount; i++)
{
current = region.NextAddress(current);
}
Console.WriteLine($"Seeked to {current}");
Target.WriteToTarget(scenario, current.ToString(), context);
}
public static Target ResolveTarget(string from)
{
if (from.StartsWith("M") || Char.IsDigit(from[0]))
{
return(MediaTarget.FromText(from));
}
if (from.StartsWith("@"))
{
return(VariableTarget.FromText(from));
}
if (from.StartsWith("KB"))
{
return(KeyBoardTarget.FromText(from));
}
if (from.StartsWith("PRINT"))
{
return(PrinterTarget.FromText(from));
}
if (from.StartsWith("X"))
{
return(DeRefTarget.FromText(from));
}
if (from.StartsWith("`"))
{
return(LiteralTarget.FromText(from));
}
throw new ArgumentException(from);
}
