Package ghidra.pcode.emu.jit.gen.op

Interface BinOpGen<T extends JitBinOp>

Type Parameters:
T - the class of p-code op node in the use-def graph
All Superinterfaces:
org.objectweb.asm.Opcodes, OpGen<T>
All Known Subinterfaces:
BitwiseBinOpGen<T>, CompareFloatOpGen<T>, CompareIntBinOpGen<T>, ShiftIntBinOpGen<T>
All Known Implementing Classes:
BoolAndOpGen, BoolOrOpGen, BoolXorOpGen, FloatAddOpGen, FloatDivOpGen, FloatEqualOpGen, FloatLessEqualOpGen, FloatLessOpGen, FloatMultOpGen, FloatNotEqualOpGen, FloatSubOpGen, IntAddOpGen, IntAndOpGen, IntCarryOpGen, IntDivOpGen, IntEqualOpGen, IntLeftOpGen, IntLessEqualOpGen, IntLessOpGen, IntMultOpGen, IntNotEqualOpGen, IntOrOpGen, IntRemOpGen, IntRightOpGen, IntSBorrowOpGen, IntSCarryOpGen, IntSDivOpGen, IntSLessEqualOpGen, IntSLessOpGen, IntSRemOpGen, IntSRightOpGen, IntSubOpGen, IntXorOpGen
public interface BinOpGen<T extends JitBinOp> extends OpGen<T>
An extension that provides conveniences and common implementations for binary p-code 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
    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
    generateRunCode(JitCodeGenerator gen, T op, JitControlFlowModel.JitBlock block, org.objectweb.asm.MethodVisitor rv)
    Emit bytecode into the run method.

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

    generateInitCode

  • Method Details

    • afterLeft

      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

      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.

      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

      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.

      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

    • generateRunCode

      default void generateRunCode(JitCodeGenerator gen, T op, JitControlFlowModel.JitBlock block, org.objectweb.asm.MethodVisitor rv)
      Emit bytecode into the run method.

      This method must emit the code needed to load any input operands, convert them to the appropriate type, perform the actual operation, and then if applicable, store the output operand. The implementations should delegate to JitCodeGenerator.generateValReadCode(JitVal, JitTypeBehavior), JitCodeGenerator.generateVarWriteCode(JitVar, JitType), and TypeConversions appropriately.

      This default implementation emits code to load the left operand, invokes the after-left hook point, emits code to load the right operand, invokes generate-binop, and finally emits code to write the destination operand.

      Specified by:
      generateRunCode in interface OpGen<T extends JitBinOp>
      Parameters:
      gen - the code generator
      op - the p-code op (use-def node) to translate
      block - the basic block containing the p-code op
      rv - the visitor for the run method.