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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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CPU整体配置:PSW(标志)

PSW(*),储存计算结果的状态
PSW(*),储存计算结果的状态

执行指令后,会有一个标志指示存储器的内容以及计算结果的状态。
PSW(*)收集这些标志。

* PSW:程序状态字

计算结果的内容写入PSW
计算结果的内容写入PSW

右图是A寄存器(00111110)和B寄存器(11100000)相加的例子。
计算结果(100011110)储存在A寄存器中。
但是,由于A寄存器只能储存8位,所以将进位标设置为“1”,并将进位标志保留为发生进位的信息。
在A寄存器中,存储不包括最高有效位1的(00011110)作为计算结果。
例如,如果计算结果是(100000000),则在进位标志中设置1,(00000000)储存在A寄存器中,所以在零标志中设置1。

第Ⅳ章:东芝微控制器,内核示例(TLCS-870/C1)

CPU整体配置
CPU整体配置:CPU内核(1)
CPU总体配置:CPU内核(2)
CPU整体配置:程序计数器
CPU整体配置:通用寄存器
CPU整体配置:堆栈和堆栈指针
中断处理
中断处理:中断类型
中断处理:可屏蔽中断
中断处理:不可屏蔽中断
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