68 lines
1.5 KiB
Java
68 lines
1.5 KiB
Java
package com.minres.scviewer.database;
|
|
public enum BitValue {
|
|
ZERO,
|
|
ONE,
|
|
X,
|
|
Z;
|
|
|
|
private static final BitValue[] ORDINAL_TABLE = BitValue.values();
|
|
|
|
public static BitValue fromChar(char c) {
|
|
switch (c) {
|
|
case '0':
|
|
return ZERO;
|
|
case '1':
|
|
return ONE;
|
|
case 'x':
|
|
case 'X':
|
|
return X;
|
|
case 'z':
|
|
case 'Z':
|
|
return Z;
|
|
default:
|
|
throw new NumberFormatException("unknown digit " + c);
|
|
}
|
|
}
|
|
|
|
public char toChar() {
|
|
switch (this) {
|
|
case ZERO:
|
|
return '0';
|
|
case ONE:
|
|
return '1';
|
|
case X:
|
|
return 'x';
|
|
case Z:
|
|
return 'z';
|
|
}
|
|
|
|
return ' '; // Unreachable?
|
|
}
|
|
|
|
public static BitValue fromInt(int i) {
|
|
if (i == 0) {
|
|
return ZERO;
|
|
} else {
|
|
return ONE;
|
|
}
|
|
}
|
|
|
|
public int toInt() {
|
|
return (this == ONE) ? 1 : 0;
|
|
}
|
|
|
|
public static BitValue fromOrdinal(int ord) {
|
|
return ORDINAL_TABLE[ord];
|
|
}
|
|
|
|
public int compare(BitValue other) {
|
|
if (this == ONE && other == ZERO) {
|
|
return 1;
|
|
} else if (this == ZERO && other == ONE) {
|
|
return -1;
|
|
} else {
|
|
// Either these are equal, or there is an X and Z, which match everything.
|
|
return 0;
|
|
}
|
|
}
|
|
} |