EBX 的值被减少，并且与两个常量值的差执行与（ AND ）操作。

EBX is decremented and ANDed with the difference between the two constant values.

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Dates and Times提供了大量的日期操作功能，包括计算两个日期之间的差，以及检索本地系统的当前日期和时间。

Dates and Times provides a broad spectrum of date manipulation functionality, including calculating the difference between two dates and retrieving the local system current date and time.

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SPU 上惟一一个面向字节的计算函数是 absdb（意思是 “absolute difference of bytes”），计算两个操作数间的差的绝对值。

The only byte-oriented arithmetic function on the SPU is absdb, "absolute difference of bytes," which gives the absolute value of the difference between two operands.

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