Package ghidra.pcode.emu.jit.gen.op

Interface BitwiseBinOpGen<T extends JitBinOp>

Type Parameters:
T - the class of p-code op node in the use-def graph
All Superinterfaces:
BinOpGen<T>, org.objectweb.asm.Opcodes, OpGen<T>
All Known Implementing Classes:
BoolAndOpGen, BoolOrOpGen, BoolXorOpGen, IntAndOpGen, IntOrOpGen, IntXorOpGen
public interface BitwiseBinOpGen<T extends JitBinOp> extends BinOpGen<T>
An extension for bitwise binary operators

  • Field Summary

    Fields inherited from interface org.objectweb.asm.Opcodes

    AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V20, V21, V22, V23, V24, V9

  • Method Summary

    Modifier and Type
    Method
    Description
    default JitType
    afterLeft(JitCodeGenerator gen, T op, JitType lType, JitType rType, org.objectweb.asm.MethodVisitor rv)
    Emit code between reading the left and right operands
    default JitType
    generateBinOpRunCode(JitCodeGenerator gen, T op, JitControlFlowModel.JitBlock block, JitType lType, JitType rType, org.objectweb.asm.MethodVisitor rv)
    Emit code for the binary operator
    default void
    generateMpIntBinOp(JitCodeGenerator gen, JitType.MpIntJitType type, org.objectweb.asm.MethodVisitor mv)
    WIP: The implementation for multi-precision ints.
    int
    intOpcode()
    The JVM opcode to implement this operator with int operands on the stack.
    int
    longOpcode()
    The JVM opcode to implement this operator with long operands on the stack.

    Methods inherited from interface ghidra.pcode.emu.jit.gen.op.BinOpGen

    generateRunCode

    Methods inherited from interface ghidra.pcode.emu.jit.gen.op.OpGen

    generateInitCode

  • Method Details

    • intOpcode

      int intOpcode()
      The JVM opcode to implement this operator with int operands on the stack.
      Returns:
      the opcode

    • longOpcode

      int longOpcode()
      The JVM opcode to implement this operator with long operands on the stack.
      Returns:
      the opcode

    • generateMpIntBinOp

      default void generateMpIntBinOp(JitCodeGenerator gen, JitType.MpIntJitType type, org.objectweb.asm.MethodVisitor mv)
      WIP: The implementation for multi-precision ints.
      Parameters:
      gen - the code generator
      type - the type of each operand, including the reuslt
      mv - the visitor for the run method

    • afterLeft

      default JitType afterLeft(JitCodeGenerator gen, T op, JitType lType, JitType rType, org.objectweb.asm.MethodVisitor rv)
      Description copied from interface: BinOpGen
      Emit code between reading the left and right operands

      This is invoked immediately after emitting code to push the left operand onto the stack, giving the implementation an opportunity to perform any manipulations of that operand necessary to set up the operation, before code to push the right operand is emitted.

      Specified by:
      afterLeft in interface BinOpGen<T extends JitBinOp>
      Parameters:
      gen - the code generator
      op - the operator
      lType - the actual type of the left operand
      rType - the actual type of the right operand
      rv - the method visitor
      Returns:
      the new actual type of the left operand

    • generateBinOpRunCode

      default JitType generateBinOpRunCode(JitCodeGenerator gen, T op, JitControlFlowModel.JitBlock block, JitType lType, JitType rType, org.objectweb.asm.MethodVisitor rv)
      Emit code for the binary operator

      At this point both operands are on the stack. After this returns, code to write the result from the stack into the destination operand will be emitted.

      This implementation reduces the need to just the JVM opcode. We simply ensure both operands have the same size and JVM type, select and emit the correct opcode, and return the type of the result.

      Specified by:
      generateBinOpRunCode in interface BinOpGen<T extends JitBinOp>
      Parameters:
      gen - the code generator
      op - the operator
      block - the block containing the operator
      lType - the actual type of the left operand
      rType - the actual type of the right operand
      rv - the method visitor
      Returns:
      the actual type of the result