未知题型

设内部RAM(30H)=5AH,(5AH)=40H,(40H)=00H,端口P1=7FH,问执行下列指令后,各有关存储单元(即R0,R1,A,B,P1,30H,40H及5AH单元)的内容如何?

【参考答案】

由于没有提供具体的指令,我无法直接给出执行指令后的结果。但是,我可以提供一个通用的分析方法,帮助你理解如何分析这类问题。......

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相关考题

The Importance of AgricultureThe development of agricul...


单项选择题The Importance of Agriculture

The development of agriculture and the balance between food and population are China’s fundamental economic problems. The classical histories praise emperors for devotion to agriculture and much of China’s modern history is (46) , which has been growing steadily.
Today, although agriculture accounts for only a quarter of the Gross National Product, it is still the main determinant of the standard of living and the principal occupation of at least 70 percent of the population.
Agriculture also (47) because industry needs both agricultural raw materials and food for its work force. The failure of agriculture to supply raw materials and food halted and later reversed the industrial progress of the 1950’s. After 1960 new emphasis was placed on agriculture, and the slogan “Agriculture is the foundation of the economy” has remained a central Chinese economic policy ever since.
(48) , there is an indirect link due to the relationship between agriculture and foreign trade. Many of China’s exports are (49) or consumer goods based on them. Flourishing agriculture, therefore, promotes exports. It also reduces the need to spend foreign exchange on imports of grain and cotton, therefore (50) .
A. determines the progress of industry
B. the story of the unfolding struggle to feed a peasant population
C. either agricultural raw materials
D. enlarging the capacity of the economy to import machinery and commodities for industry
E. In addition to the direct links between agriculture and industry
F. thus promoting both import and export
(46)