sb.append(RegOps.opName(opcode));
sb.append(RegOps.opName(opcode));
sb.append(RegOps.opName(opcode));
sb.append(RegOps.opName(opcode));
sb.append(RegOps.opName(opcode));
sb.append(RegOps.opName(opcode));
sb.append(RegOps.opName(opcode));
sb.append(RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));
throw new RuntimeException("unknown opcode " + RegOps.opName(opcode));