// There are two expected formats:
// * hi..lo (hi, lo being integers)
// * bit (bit being an integer; treated as bit..bit)
public static bool TryParse(string s, out BitsRange br)
{
var x = s.Split(BitRangeSplitPatterns, StringSplitOptions.None);
if (x.Length == 1)
{
if (int.TryParse(x[0], out var bit))
{
br = new BitsRange(bit, bit);
return(true);
}
}
else if (x.Length == 2)
{
if (int.TryParse(x[0], out var upperBit) &&
int.TryParse(x[1], out var lowerBit))
{
br = new BitsRange(lowerBit, upperBit);
return(true);
}
}
br = new BitsRange(-1, -1);
return(false);
}
private static Tuple <string, string> ParseLine(string lineContent, int opcodeLength = 32)
{
var pattern = new StringBuilder(new String('_', opcodeLength));
var elems = lineContent.Split(LineSplitPatterns, StringSplitOptions.RemoveEmptyEntries);
if (elems.Length < 2)
{
throw new RecoverableException($"Couldn't split line: {lineContent}");
}
var instructionName = elems[0];
foreach (var elem in elems.Skip(1))
{
var parts = elem.Split(PartSplitPatterns);
if (parts.Length != 2)
{
// let's ignore all non-explicit ranges
continue;
}
if (!BitsRange.TryParse(parts[0], out var range))
{
throw new RecoverableException($"Couldn't parse range: {parts[0]}");
}
if (!BitsValue.TryParse(parts[1], out var value))
{
throw new RecoverableException($"Couldn't parse value: {parts[1]}");
}
if (!range.TryApply(pattern, value))
{
throw new RecoverableException($"Couldn't apply value {value} in range {range} to pattern {pattern}");
}
}
return(Tuple.Create(instructionName, pattern.ToString()));
}
