As all objects start on an 8 byte boundary, and the size is divisible by 8, the bottom 3 bits are not used for the size; we use them for flags to indicate different states of the object.
因为所有对象都是从8字节边界开始，并且大小可以被8整除，所以底部的3位不用于表示大小；我们将其作为标志，用于表示对象的不同状态。
The pre-requisite to deploy TXSeries applications as a Web services is to compile them with 8 byte boundary.
部署 TXSeries 应用程序作为 Web 服务的先决条件是使用 8 字节的边界进行编译。
Note that the MPTR, not this slot, is grained on an 8 byte boundary. The flags are as follows.
请注意，mptr是按8字节边界划分颗粒度的，而这一位置不是。
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