TMS320C54一段资料的翻译(急要)

来源:百度知道 编辑:UC知道 时间:2024/05/30 06:20:17
5.5.3.1 Increment/Decrement Address Modifications (MOD = 0, 1, 2, or 3)
While an AR is being used, you can modify the AR by incrementing or decrementing
its value.
The syntaxes for using the AR without modification, postdecrementing the AR
by 1, postincrementing the AR by 1, and preincrementing the AR by 1 are
shown in Table 5–4 for MOD = 0, 1, 2, and 3, respectively.
Preincrementing (*+ARx) is supported only in instructions that access operands
in a write operation.
5.5.3.2 Offset Address Modifications (MOD = 12 or 13)
Offset addressing is a type of indirect addressing in which a predetermined offset,
or step size, is added to the contents of an auxiliary register. There are two
options for offset addressing. In both cases, a 16-bit long offset, which is part
of the instruction, is added to the value in the auxiliary register, and the result
is used to address a location in data memory. In the first case, the auxiliary r

这是最后一段
5.5.3.3收录地址修改(国防部= 5或6 )

收录处理是一种间接寻址,其中的内容,

AR0添加到,或从中减去任何其他辅助登记, ARX技术。

收录处理不同于抵消处理中,该指数或步长

可确定在代码执行。因为索引是确定

在执行代码,您可以方便地进行调整的步长。

收录处理也提供了一个优势抵消处理:它

不需要额外的字的指示。

该语法为减去AR0从ARX技术和添加到ARX技术的AR0

表5-4所示为国防部= 5和6分别。