SUBS	$0xff, R6, RSP                                   // ERROR "illegal destination register"
	SUBS	$0xffff0, R6, RSP                                // ERROR "illegal destination register"
	SUBS	$0x1000100010001000, R6, RSP                     // ERROR "illegal destination register"
	SUBS	$0x10001000100011, R6, RSP                       // ERROR "illegal destination register"

   *
   * @since 7.0
   */
  public static int fromBytes(byte b1, byte b2, byte b3, byte b4) {
    return b1 << 24 | (b2 & 0xFF) << 16 | (b3 & 0xFF) << 8 | (b4 & 0xFF);
  }

  private static final class IntConverter extends Converter<String, Integer>
      implements Serializable {
    static final Converter<String, Integer> INSTANCE = new IntConverter();

                    break;
                case 1:
                    final ASN1BitString ctxFlags = ASN1BitString.getInstance(tagged, true);
                    setContextFlags(ctxFlags.getBytes()[0] & 0xff);
                    break;
                case 2:
                    final ASN1OctetString mechanismToken = ASN1OctetString.getInstance(tagged, true);
                    setMechanismToken(mechanismToken.getOctets());

        dataOffset = readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        dataDisplacement = readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        setupCount = buffer[bufferIndex] & 0xFF;
        bufferIndex += 2;
        if ((setupCount != 0) && (LogStream.level > 2)) {
            log.println("setupCount is not zero: " + setupCount);
        }

        return bufferIndex - start;
    }

  @GwtIncompatible // Chars.fromByteArray
  public void testFromByteArray() {
    assertThat(Chars.fromByteArray(new byte[] {0x23, 0x45, (byte) 0xDC})).isEqualTo('\u2345');
    assertThat(Chars.fromByteArray(new byte[] {(byte) 0xFE, (byte) 0xDC})).isEqualTo('\uFEDC');
  }

  @GwtIncompatible // Chars.fromByteArray
  public void testFromByteArrayFails() {
    assertThrows(

    void testWriteULongNegative() {
        byte[] dest = new byte[4];
        NtlmMessage.writeULong(dest, 0, -1);
        assertArrayEquals(new byte[] { -1, -1, -1, -1 }, dest, "All bytes should be 0xFF for -1");
    }

    @Test
    @DisplayName("writeUShort writes little endian bytes")
    void testWriteUShort() {
        byte[] dest = new byte[2];
        NtlmMessage.writeUShort(dest, 0, 0xBBAA);

    }
  }

  // Example taken from twitter/hpack DecoderTest.testIllegalIndex
  @Test
  fun readIndexedHeaderFieldTooLargeIndex() {
    bytesIn.writeShort(0xff00) // == Indexed - Add idx = 127
    assertFailsWith<IOException> {
      hpackReader!!.readHeaders()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Header index too large 127")
    }
  }

        return this.sid;
    }

    @Override
    public int decode(final byte[] buf, int bi, final int len) {
        this.allow = buf[bi] == (byte) 0x00;
        bi++;
        this.flags = buf[bi++] & 0xFF;
        final int size = SMBUtil.readInt2(buf, bi);
        bi += 2;
        this.access = SMBUtil.readInt4(buf, bi);
        bi += 4;
        this.sid = new SID(buf, bi);
        return size;
    }

        dstIndex += 2;
        SMBUtil.writeInt4(this.offset, dst, dstIndex);
        dstIndex += 4;
        for (int i = 0; i < 4; i++) {
            dst[dstIndex++] = (byte) 0xFF;
        }
        SMBUtil.writeInt2(this.writeMode, dst, dstIndex);
        dstIndex += 2;
        SMBUtil.writeInt2(this.remaining, dst, dstIndex);
        dstIndex += 2;
        dst[dstIndex] = (byte) 0x00;

        bufferIndex += 2;
        this.dataDisplacement = SMBUtil.readInt2(buffer, bufferIndex);
        bufferIndex += 2;
        this.setupCount = buffer[bufferIndex] & 0xFF;
        bufferIndex += 2;

        return bufferIndex - start;
    }

    @Override
    protected int readBytesWireFormat(final byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {