if (byte2 > (byte) 0xBF
            // Overlong? 5 most significant bits must not all be zero.
            || (byte1 == (byte) 0xE0 && byte2 < (byte) 0xA0)
            // Check for illegal surrogate codepoints.
            || (byte1 == (byte) 0xED && (byte) 0xA0 <= byte2)
            // Third byte trailing-byte test.
            || bytes[index++] > (byte) 0xBF) {
          return false;
        }
      } else {

	var zb0001Mask uint8 /* 8 bits */
	_ = zb0001Mask
	if z.Index == nil {
		zb0001Len--
		zb0001Mask |= 0x20
	}
	if z.Checksums == nil {
		zb0001Len--
		zb0001Mask |= 0x40
	}
	if z.Error == "" {
		zb0001Len--
		zb0001Mask |= 0x80
	}
	// variable map header, size zb0001Len
	err = en.Append(0x80 | uint8(zb0001Len))
	if err != nil {
		return
	}
	if zb0001Len == 0 {
		return
	}

	// string "PolicyConfigUpdatedAt"
	o = append(o, 0xb5, 0x50, 0x6f, 0x6c, 0x69, 0x63, 0x79, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x64, 0x41, 0x74)
	o = msgp.AppendTime(o, z.PolicyConfigUpdatedAt)
	// string "ObjectLockConfigUpdatedAt"
	o = append(o, 0xb9, 0x4f, 0x62, 0x6a, 0x65, 0x63, 0x74, 0x4c, 0x6f, 0x63, 0x6b, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x55, 0x70, 0x64, 0x61, 0x74, 0x65, 0x64, 0x41, 0x74)

	if z.OldDataDir == "" {
		zb0001Len--
		zb0001Mask |= 0x10
	}
	// variable map header, size zb0001Len
	o = append(o, 0x80|uint8(zb0001Len))
	if zb0001Len == 0 {
		return
	}
	// string "BaseOptions"
	o = append(o, 0xab, 0x42, 0x61, 0x73, 0x65, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73)
	// map header, size 0
	_ = z.BaseOptions
	o = append(o, 0x80)
	// string "r"
	o = append(o, 0xa1, 0x72)

          return 0x80;
        } else if (userFriendly.matches("(?i)(?:French|Latin|Western.*European)")) {
          // Mostly 1-byte UTF-8 sequences, mixed with occasional 2-byte
          // sequences - "Western European" text
          return 0x90;
        } else if (userFriendly.matches("(?i)(?:Branch.*Prediction.*Hostile)")) {
          // Defeat branch predictor for: c < 0x80 ; branch taken 50% of the time.

          return 0x80;
        } else if (userFriendly.matches("(?i)(?:French|Latin|Western.*European)")) {
          // Mostly 1-byte UTF-8 sequences, mixed with occasional 2-byte
          // sequences - "Western European" text
          return 0x90;
        } else if (userFriendly.matches("(?i)(?:Branch.*Prediction.*Hostile)")) {
          // Defeat branch predictor for: c < 0x80 ; branch taken 50% of the time.

	o = msgp.AppendUint8(o, uint8(z.BitrotChecksumAlgo))
	// string "PartNums"
	o = append(o, 0xa8, 0x50, 0x61, 0x72, 0x74, 0x4e, 0x75, 0x6d, 0x73)
	o = msgp.AppendArrayHeader(o, uint32(len(z.PartNumbers)))
	for za0004 := range z.PartNumbers {
		o = msgp.AppendInt(o, z.PartNumbers[za0004])
	}
	// string "PartETags"
	o = append(o, 0xa9, 0x50, 0x61, 0x72, 0x74, 0x45, 0x54, 0x61, 0x67, 0x73)
	if z.PartETags == nil { // allownil: if nil

              new byte[] {(byte) 0xcd, (byte) 0xab, (byte) 0x00, (byte) 0x00},
              0x0000abcd,
              null,
              "cdab0000"),
          new ExpectedHashCode(
              new byte[] {
                (byte) 0xef, (byte) 0xcd, (byte) 0xab, (byte) 0x00,
                (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
              },
              0x00abcdef,
              0x0000000000abcdefL,

              new byte[] {(byte) 0xcd, (byte) 0xab, (byte) 0x00, (byte) 0x00},
              0x0000abcd,
              null,
              "cdab0000"),
          new ExpectedHashCode(
              new byte[] {
                (byte) 0xef, (byte) 0xcd, (byte) 0xab, (byte) 0x00,
                (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
              },
              0x00abcdef,
              0x0000000000abcdefL,

	MOVF.NE	(g), F3                                   // 003a9a1d
	MOVD	(g), F3                                   // 003b9aed
	MOVF	0x20(R3), F9       // MOVF 32(R3), F9     // 089a93ed
	MOVD.EQ	0x20(R4), F9       // MOVD.EQ 32(R4), F9  // 089b940d
	MOVF.NE	-0x20(g), F3       // MOVF.NE -32(g), F3  // 083a1a1d
	MOVD	-0x20(g), F3       // MOVD -32(g), F3     // 083b1aed
	MOVF	F9, (R4)                                  // 009a84ed