if more {
			c |= 0x80
		}
		w.WriteByte(c)
	}
}

func writeUleb128FixedLength(w io.ByteWriter, v uint64, length int) {
	for i := 0; i < length; i++ {
		c := uint8(v & 0x7f)
		v >>= 7
		if i < length-1 {
			c |= 0x80
		}
		w.WriteByte(c)
	}
	if v != 0 {
		panic("writeUleb128FixedLength: length too small")
	}
}

func writeSleb128(w io.ByteWriter, v int64) {