--- /dev/null
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * 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 com.android.dexgen.dex.code.form;
+
+import com.android.dexgen.dex.code.DalvInsn;
+import com.android.dexgen.dex.code.InsnFormat;
+import com.android.dexgen.dex.code.SimpleInsn;
+import com.android.dexgen.rop.code.RegisterSpecList;
+import com.android.dexgen.util.AnnotatedOutput;
+
+/**
+ * Instruction format {@code 32x}. See the instruction format spec
+ * for details.
+ */
+public final class Form32x extends InsnFormat {
+ /** {@code non-null;} unique instance of this class */
+ public static final InsnFormat THE_ONE = new Form32x();
+
+ /**
+ * Constructs an instance. This class is not publicly
+ * instantiable. Use {@link #THE_ONE}.
+ */
+ private Form32x() {
+ // This space intentionally left blank.
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public String insnArgString(DalvInsn insn) {
+ RegisterSpecList regs = insn.getRegisters();
+ return regs.get(0).regString() + ", " + regs.get(1).regString();
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public String insnCommentString(DalvInsn insn, boolean noteIndices) {
+ // This format has no comment.
+ return "";
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public int codeSize() {
+ return 3;
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public boolean isCompatible(DalvInsn insn) {
+ RegisterSpecList regs = insn.getRegisters();
+ return (insn instanceof SimpleInsn) &&
+ (regs.size() == 2) &&
+ unsignedFitsInShort(regs.get(0).getReg()) &&
+ unsignedFitsInShort(regs.get(1).getReg());
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public InsnFormat nextUp() {
+ return null;
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public void writeTo(AnnotatedOutput out, DalvInsn insn) {
+ RegisterSpecList regs = insn.getRegisters();
+
+ write(out,
+ opcodeUnit(insn, 0),
+ (short) regs.get(0).getReg(),
+ (short) regs.get(1).getReg());
+ }
+}