diff src/main/gov/nasa/jpf/jvm/bytecode/FSUB.java @ 0:61d41facf527

initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/gov/nasa/jpf/jvm/bytecode/FSUB.java	Fri Jan 23 10:14:01 2015 -0800
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2014, United States Government, as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All rights reserved.
+ *
+ * The Java Pathfinder core (jpf-core) platform is licensed 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
+ * 
+ *        http://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 gov.nasa.jpf.jvm.bytecode;
+
+import gov.nasa.jpf.vm.Instruction;
+import gov.nasa.jpf.vm.StackFrame;
+import gov.nasa.jpf.vm.ThreadInfo;
+
+
+/**
+ * Subtract float
+ * ..., value1, value2 => ..., result
+ */
+public class FSUB extends Instruction implements JVMInstruction {
+
+  @Override
+  public Instruction execute (ThreadInfo ti) {
+    StackFrame frame = ti.getModifiableTopFrame();
+    
+    float v1 = frame.popFloat();
+    float v2 = frame.popFloat();
+    
+    float r = v2 - v1;
+    
+    frame.pushFloat(r);
+
+    return getNext(ti);
+  }
+
+  @Override
+  public int getByteCode () {
+    return 0x66;
+  }
+  
+  @Override
+  public void accept(JVMInstructionVisitor insVisitor) {
+	  insVisitor.visit(this);
+  }
+}