Package ghidra.pcode.opbehavior

Class OpBehaviorPopcount

java.lang.Object

ghidra.pcode.opbehavior.OpBehavior

ghidra.pcode.opbehavior.UnaryOpBehavior

ghidra.pcode.opbehavior.OpBehaviorPopcount

public class OpBehaviorPopcount
extends UnaryOpBehavior

Constructor Summary

Constructors

Constructor	Description
OpBehaviorPopcount()

Method Summary

Modifier and Type	Method	Description
long	evaluateUnary(int sizeout, int sizein, long val)	Evaluate the unary operation using long data
BigInteger	evaluateUnary(int sizeout, int sizein, BigInteger unsignedIn1)	Evaluate the unary operation using BigInteger data

Methods inherited from class ghidra.pcode.opbehavior.OpBehavior

getOpCode

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

OpBehaviorPopcount

public OpBehaviorPopcount()

Method Details

evaluateUnary

public long evaluateUnary(int sizeout,
 int sizein,
 long val)

Description copied from class: UnaryOpBehavior

Evaluate the unary operation using long data

Specified by:

evaluateUnary in class UnaryOpBehavior

Parameters:

sizeout - intended output size (bytes)

sizein - in1 size (bytes)

val - unsigned input 1

Returns:

operation result. NOTE: if the operation overflows bits may be set beyond the specified sizeout. Even though results should be treated as unsigned it may be returned as a signed long value. It is expected that the returned result always be properly truncated by the caller since the evaluation may not - this is done to conserve emulation cycles.

See Also:

• Utils.longToBytes(long, int, boolean)
• Utils.bytesToLong(byte[], int, boolean)

evaluateUnary

public BigInteger evaluateUnary(int sizeout,
 int sizein,
 BigInteger unsignedIn1)

Description copied from class: UnaryOpBehavior

Evaluate the unary operation using BigInteger data

Specified by:

evaluateUnary in class UnaryOpBehavior

Parameters:

sizeout - intended output size (bytes)

sizein - in1 size (bytes)

unsignedIn1 - unsigned input 1

Returns:

operation result. NOTE: if the operation overflows bits may be set beyond the specified sizeout. Even though results should be treated as unsigned it may be returned as a signed value. It is expected that the returned result always be properly truncated by the caller since the evaluation may not - this is done to conserve emulation cycles.

See Also:

• Utils.bigIntegerToBytes(BigInteger, int, boolean)
• Utils.bytesToBigInteger(byte[], int, boolean, boolean)