Package ghidra.pcode.opbehavior

Class BinaryOpBehavior

java.lang.Object

ghidra.pcode.opbehavior.OpBehavior

ghidra.pcode.opbehavior.BinaryOpBehavior

Direct Known Subclasses:

OpBehaviorBoolAnd, OpBehaviorBoolOr, OpBehaviorBoolXor, OpBehaviorEqual, OpBehaviorFloatAdd, OpBehaviorFloatDiv, OpBehaviorFloatEqual, OpBehaviorFloatLess, OpBehaviorFloatLessEqual, OpBehaviorFloatMult, OpBehaviorFloatNotEqual, OpBehaviorFloatSub, OpBehaviorIntAdd, OpBehaviorIntAnd, OpBehaviorIntCarry, OpBehaviorIntDiv, OpBehaviorIntLeft, OpBehaviorIntLess, OpBehaviorIntLessEqual, OpBehaviorIntMult, OpBehaviorIntOr, OpBehaviorIntRem, OpBehaviorIntRight, OpBehaviorIntSborrow, OpBehaviorIntScarry, OpBehaviorIntSdiv, OpBehaviorIntSless, OpBehaviorIntSlessEqual, OpBehaviorIntSrem, OpBehaviorIntSright, OpBehaviorIntSub, OpBehaviorIntXor, OpBehaviorNotEqual, OpBehaviorPiece, OpBehaviorSubpiece

public abstract class BinaryOpBehavior
extends OpBehavior

Method Summary

Modifier and Type	Method	Description
abstract long	evaluateBinary(int sizeout, int sizein, long unsignedIn1, long unsignedIn2)	Evaluate the binary (2 input args) operation using long data
abstract java.math.BigInteger	evaluateBinary(int sizeout, int sizein, java.math.BigInteger unsignedIn1, java.math.BigInteger unsignedIn2)	Evaluate the binary (2 input args) 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 Detail

evaluateBinary

public abstract long evaluateBinary(int sizeout,
                                    int sizein,
                                    long unsignedIn1,
                                    long unsignedIn2)

Evaluate the binary (2 input args) operation using long data

Parameters:

sizeout - intended output size (bytes)

sizein - in1 size (bytes)

unsignedIn1 - unsigned input 1

unsignedIn2 - unsigned input 2

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)

evaluateBinary

public abstract java.math.BigInteger evaluateBinary(int sizeout,
                                                    int sizein,
                                                    java.math.BigInteger unsignedIn1,
                                                    java.math.BigInteger unsignedIn2)

Evaluate the binary (2 input args) operation using BigInteger data

Parameters:

sizeout - intended output size (bytes)

sizein - in1 size (bytes)

unsignedIn1 - unsigned input 1

unsignedIn2 - unsigned input 2

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)