--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.word/src/org/graalvm/compiler/word/ObjectAccess.java	2017-02-15 17:09:41.726648098 -0800
@@ -0,0 +1,936 @@
+/*
+ * Copyright (c) 2013, 2016, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package org.graalvm.compiler.word;
+
+import org.graalvm.compiler.core.common.LocationIdentity;
+import org.graalvm.compiler.word.Word.Opcode;
+import org.graalvm.compiler.word.Word.Operation;
+
+/**
+ * Low-level memory access for Objects. Similarly to the readXxx and writeXxx methods defined for
+ * {@link Pointer}, these methods access the raw memory without any null checks, read- or write
+ * barriers. When the VM uses compressed pointers, then readObject and writeObject methods access
+ * compressed pointers.
+ */
+public final class ObjectAccess {
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native byte readByte(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native char readChar(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native short readShort(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native int readInt(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native long readLong(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native float readFloat(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native double readDouble(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Word readWord(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Object readObject(Object object, WordBase offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native byte readByte(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native char readChar(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native short readShort(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native int readInt(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native long readLong(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native float readFloat(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native double readDouble(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Word readWord(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the read
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Object readObject(Object object, int offset, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeByte(Object object, WordBase offset, byte val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeChar(Object object, WordBase offset, char val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeShort(Object object, WordBase offset, short val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeInt(Object object, WordBase offset, int val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeLong(Object object, WordBase offset, long val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeFloat(Object object, WordBase offset, float val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeDouble(Object object, WordBase offset, double val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeWord(Object object, WordBase offset, WordBase val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeObject(Object object, WordBase offset, Object val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeByte(Object object, int offset, byte val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeChar(Object object, int offset, char val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeShort(Object object, int offset, short val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeInt(Object object, int offset, int val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeLong(Object object, int offset, long val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeFloat(Object object, int offset, float val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeDouble(Object object, int offset, double val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeWord(Object object, int offset, WordBase val, LocationIdentity locationIdentity);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param locationIdentity the identity of the write
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeObject(Object object, int offset, Object val, LocationIdentity locationIdentity);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native byte readByte(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native char readChar(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native short readShort(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native int readInt(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native long readLong(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native float readFloat(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native double readDouble(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Word readWord(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Object readObject(Object object, WordBase offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native byte readByte(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native char readChar(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native short readShort(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native int readInt(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native long readLong(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native float readFloat(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native double readDouble(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Word readWord(Object object, int offset);
+
+    /**
+     * Reads the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @return the result of the memory access
+     */
+    @Operation(opcode = Opcode.READ_OBJECT)
+    public static native Object readObject(Object object, int offset);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeByte(Object object, WordBase offset, byte val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeChar(Object object, WordBase offset, char val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeShort(Object object, WordBase offset, short val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeInt(Object object, WordBase offset, int val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeLong(Object object, WordBase offset, long val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeFloat(Object object, WordBase offset, float val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeDouble(Object object, WordBase offset, double val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeWord(Object object, WordBase offset, WordBase val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     * <p>
+     * The offset is always treated as a {@link Signed} value. However, the static type is
+     * {@link WordBase} to avoid the frequent casts of {@link Unsigned} values (where the caller
+     * knows that the highest-order bit of the unsigned value is never used).
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeObject(Object object, WordBase offset, Object val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeByte(Object object, int offset, byte val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeChar(Object object, int offset, char val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeShort(Object object, int offset, short val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeInt(Object object, int offset, int val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeLong(Object object, int offset, long val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeFloat(Object object, int offset, float val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeDouble(Object object, int offset, double val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeWord(Object object, int offset, WordBase val);
+
+    /**
+     * Writes the memory at address {@code (object + offset)}. The offset is in bytes.
+     *
+     * @param object the base object for the memory access
+     * @param offset the signed offset for the memory access
+     * @param val the value to be written to memory
+     */
+    @Operation(opcode = Opcode.WRITE_OBJECT)
+    public static native void writeObject(Object object, int offset, Object val);
+}