--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCRegister.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2000-2002 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.asm.sparc;
+
+import sun.jvm.hotspot.asm.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class SPARCRegister extends Register {
+  private static final int nofRegisters = 32;  // total number of registers
+
+  private static final int GLOBAL_BASE = 0;
+  private static final int OUT_BASE    = 8;
+  private static final int LOCAL_BASE  = 16;
+  private static final int IN_BASE     = 24;
+
+  private static final int LOCAL_SP_WORD_OFFSET = 0;
+  private static final int IN_SP_WORD_OFFSET    = 8;
+
+  /** Constructor for an explicitly numbered register */
+  public SPARCRegister(int number) {
+    super(number);
+  }
+
+  /** Constructor for an I, G, O, or L register */
+  public SPARCRegister(SPARCRegisterType type, int number) {
+    if (type == SPARCRegisterType.GLOBAL) {
+      this.number = number + GLOBAL_BASE;
+    } else if (type == SPARCRegisterType.OUT) {
+      this.number = number + OUT_BASE;
+    } else if (type == SPARCRegisterType.LOCAL) {
+      this.number = number + LOCAL_BASE;
+    } else if (type == SPARCRegisterType.IN) {
+      this.number = number + IN_BASE;
+    } else {
+      throw new IllegalArgumentException("Invalid SPARC register type");
+    }
+  }
+
+  public int getNumberOfRegisters() {
+    return nofRegisters;
+  }
+
+  public boolean isIn() {
+    return (IN_BASE <= getNumber());
+  }
+
+  public boolean isLocal() {
+    return (LOCAL_BASE <= getNumber() && getNumber() < IN_BASE);
+  }
+
+  public boolean isOut() {
+    return (OUT_BASE <= getNumber() && getNumber() < LOCAL_BASE);
+  }
+
+  public boolean isGlobal() {
+    return (GLOBAL_BASE <= getNumber() && getNumber() < OUT_BASE);
+  }
+
+  public SPARCRegister afterSave() {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(isOut() || isGlobal(), "register not visible after save");
+    }
+    return isOut() ? new SPARCRegister(getNumber() + (IN_BASE - OUT_BASE)) : this;
+  }
+
+  public SPARCRegister afterRestore() {
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(isIn() || isGlobal(), "register not visible after save");
+    }
+    return isIn() ? new SPARCRegister(getNumber() + (OUT_BASE - IN_BASE)) : this;
+  }
+
+  /** NOTE: this returns an offset in BYTES in this system! */
+  public long spOffsetInSavedWindow() {
+    if (isIn()) {
+      return VM.getVM().getAddressSize() * (getNumber() - IN_BASE + IN_SP_WORD_OFFSET);
+    } else if (isLocal()) {
+      return VM.getVM().getAddressSize() * (getNumber() - LOCAL_BASE + LOCAL_SP_WORD_OFFSET);
+    }
+    if (Assert.ASSERTS_ENABLED) {
+      Assert.that(isIn() || isLocal(), "only ins and locals are saved in my frame");
+    }
+    return 0;
+  }
+
+  public String toString() {
+    return SPARCRegisters.getRegisterName(number);
+  }
+
+  public boolean isFramePointer() {
+    return number == 30; // is I6?
+  }
+
+  public boolean isStackPointer() {
+    return number == 14; // is O6?
+  }
+
+  public boolean isFloat() {
+    return false;
+  }
+
+  public boolean isV9Only() {
+    return false;
+  }
+}