Package ghidra.pcode.opbehavior

Class UnaryOpBehavior

java.lang.Object

ghidra.pcode.opbehavior.OpBehavior

ghidra.pcode.opbehavior.UnaryOpBehavior

Direct Known Subclasses:

OpBehaviorBoolNegate, OpBehaviorCopy, OpBehaviorFloatAbs, OpBehaviorFloatCeil, OpBehaviorFloatFloat2Float, OpBehaviorFloatFloor, OpBehaviorFloatInt2Float, OpBehaviorFloatNan, OpBehaviorFloatNeg, OpBehaviorFloatRound, OpBehaviorFloatSqrt, OpBehaviorFloatTrunc, OpBehaviorInt2Comp, OpBehaviorIntNegate, OpBehaviorIntSext, OpBehaviorIntZext, OpBehaviorLzcount, OpBehaviorPopcount

public abstract class UnaryOpBehavior
extends OpBehavior

Method Summary

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

Method Details

evaluateUnary

public abstract long evaluateUnary(int sizeout,
 int sizein,
 long unsignedIn1)

Evaluate the unary operation using long data

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

Evaluate the unary operation using BigInteger data

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)