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廈門泰尼電氣有限公司
主營產(chǎn)品: AB模塊PLC |
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廈門泰尼電氣有限公司
主營產(chǎn)品: AB模塊PLC |
參考價 | 面議 |
聯(lián)系方式:張亮查看聯(lián)系方式
更新時間:2018-02-09 17:32:04瀏覽次數(shù):435
聯(lián)系我們時請說明是泵閥商務(wù)網(wǎng)上看到的信息,謝謝!
1756-IB16---1756-IB16
1756-IB16---1756-IB16
指令的格式
我們已知,要讓計算機(jī)做事,就得給計算機(jī)以指令,并且我們已知,計算機(jī)很“笨",只能懂得數(shù)字,如前面我們寫進(jìn)機(jī)器的75H,90H,00H等等,所以指令的*種格式就是機(jī)器碼格式,也說是數(shù)字的形式。但這種形式實在是為難我們?nèi)肆?,太難記了,于是有另一種格式,助記符格式,如MOV P1,#0FFH,這樣就好記了。 這兩種格式之間的關(guān)系呢,我們不難理解,本質(zhì)上它們*等價,只是形式不一樣而已。
:張亮(工程師) 專線:
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