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Merge remote-tracking branch 'origin/GP-3190_dev747368_remove_numberutils'

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Ryan Kurtz 2023-03-22 11:25:08 -04:00
commit 3da82f9ff9
7 changed files with 89 additions and 230 deletions
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63
Ghidra/Framework/Generic/src/main/java/ghidra/util/NumberUtil.java
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/* ###
* IP: GHIDRA
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ghidra.util;
public class NumberUtil {
public static final int UNSIGNED_BYTE_MASK = 0xff;
public static final int UNSIGNED_SHORT_MASK = 0xffff;
public static final long UNSIGNED_INT_MASK = 0xffffffffL;
//public static final long UNSIGNED_LONG_MASK = 0xffffffffffffffffL;
/**
* Get the unsigned value of a number.
* @param value the value stored in a signed number
* @return the unsigned value of the number
*/
public static Number getUnsignedValue(Number value) {
if (value instanceof Byte) {
return value.byteValue() & UNSIGNED_BYTE_MASK;
}
else if (value instanceof Short) {
return value.shortValue() & UNSIGNED_SHORT_MASK;
}
else if (value instanceof Integer) {
return value.intValue() & UNSIGNED_INT_MASK;
}
else if (value instanceof Long) {
// TODO: Is this valid?
if (value.longValue() < 0) {
return value.longValue() & 0xffffffffffffffffL;
}
return value;
}
throw new UnsupportedOperationException("Number instance not handled!");
}
/**
* Compare to the maximum unsigned value that the current number is holding.
* @param value the value stored in a signed number
* @return true if equal to the maximum and false otherwise
*/
public static boolean equalsMaxUnsignedValue(Number value) {
// All number types should be the max when equal to signed value -1 in two's complement
if (value.longValue() == -1) {
return true;
}
return false;
}
}