/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  package org.apache.bcel.verifier.tests;
  
  import org.apache.bcel.generic.DNEG;
  import org.apache.bcel.generic.DREM;
  import org.apache.bcel.generic.DUP2;
  import org.apache.bcel.generic.DUP2_X1;
  import org.apache.bcel.generic.DUP2_X2;
  import org.apache.bcel.generic.DUP_X2;
  import org.apache.bcel.generic.FADD;
  import org.apache.bcel.generic.FNEG;
  import org.apache.bcel.generic.FREM;
  import org.apache.bcel.generic.FSUB;
  import org.apache.bcel.generic.IUSHR;
  import org.apache.bcel.generic.LAND;
  import org.apache.bcel.generic.LNEG;
  import org.apache.bcel.generic.LOR;
  import org.apache.bcel.generic.LSHL;
  import org.apache.bcel.generic.LUSHR;
  import org.apache.bcel.generic.POP;
  import org.apache.bcel.generic.POP2;
  
  /*
   * A selection of JVM opcodes, each one in a minimal method.
   */
  public class JvmOpCodes {
  
      long l1;
      long l2;
  
      /**
       * Tests {@link DNEG}.
       */
      double dneg(final double a) {
          return -a;
      }
  
      /**
       * Tests {@link DREM}.
       */
      double drem(final double a, final double b) {
          return a % b;
      }
  
      /**
       * Tests {@link DUP2}.
       */
      long dup2(long a) {
          return a++;
      }
  
      /**
       * Tests {@link DUP2_X1}.
       */
      void dup2x1(final String[] s) {
          s[0] += "s"; // Form 1
          l2 = l1 = 1; // Form 2
      }
  
      /**
       * Tests {@link DUP2_X2}.
       */
      long dup2x2(final long[] array, final int i, final long l) {
          return array[i] = l;
      }
  
      /**
       * Tests {@link DUP_X2}.
       */
      int dupx2(final int[] array, final int i, final int l) {
          return array[i] = l;
      }
  
      /**
       * Tests {@link FADD}.
       */
      float fadd(final float a, final float b) {
          return a + b;
      }
  
      /**
      * Tests {@link FNEG}.
      */
     float fneg(final float a) {
         return -a;
     }
 
     /**
      * Tests {@link FREM}.
      */
     float frem(final float a, final float b) {
         return a % b;
     }
 
     /**
      * Tests {@link FSUB}.
      */
     float fsub(final float a, final float b) {
         return a - b;
     }
 
     /**
      * Tests {@link IUSHR}.
      */
     int iushr(final int a, final int b) {
         return a >>> b;
     }
 
     /**
      * Tests {@link LAND}.
      */
     long land(final long a, final long b) {
         return a & b;
     }
 
     /**
      * Tests {@link LNEG}.
      */
     long lneg(final long a) {
         return -a;
     }
 
     /**
      * Tests {@link LOR}.
      */
     long lor(final long a, final long b) {
         return a | b;
     }
 
     /**
      * Tests {@link LSHL}.
      */
     long lshl(final long a, final long b) {
         return a << b;
     }
 
     /**
      * Tests {@link LUSHR}.
      */
     long lushr(final long a, final long b) {
         return a >>> b;
     }
 
     /**
      * Tests {@link POP}.
      */
     void pop() {
         Math.round(0.5f);
     }
 
     /**
      * Tests {@link POP2}.
      */
     void pop2() {
         Math.round(0.5d);
     }
 }