假设X和X+2字单元存放有双精度数P,Y和Y+2字单元存放有双精度数Q,下面程序完成了什么工作?MOV DX, X+2MOV AX, X ;双精度数P送入DX, AXADD AX, XADC DX, X+2 ;计算2*P送入DX, AXCMP DX, Y+2 ;2P与Q的高位比较JL L2 ;2PQ,转L1 (Z=1)CMP AX, Y ;如果高位相等,则比较低位JBE L2 ;2P的低位小于等于Q的低位,转L2(Z=2)L1: MOV Z, 1JMP SHORT EXITL2: MOV Z, 2EXIT: ……
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写一指令序列完成将AX寄存器的最低4位置1,最高3位清0,第7、8、9位取反,其余位不变。
在1000H单元内有一条二字节指令JMP SHORTOBJ如其中位移量分别为30H,55H,0AAH,那么转向OBJ的值分别是(),()和()
Choose the right one from the following phrases:bring upback upbreak upcatch upfire upmake uphurry upsum up1.She’s all ___________about this new course she’s taking.她对选的这么新课非常感兴趣。2.Try and ______ her _____ a bit or we’ll be late.设法催她一下,不然我们会迟到的。3.He ________some excuses about the dog eating his homework.他编造说狗吃了他的作业。4.If I ask for more money will you ________ me ______?如果我要更多的钱,你会支持我吗?5. The marriage _________ just a few years later.仅仅几年后这桩婚姻就破裂了。6.I’ll _________ briefly and then we’ll take questions.我先简单做个总结,然后我们会接受提问。7.She ___________three sons on her own.她独自养大了三个儿子。8.If you hurry, you should ___________with them at the bridge.你如果快点,应该能在桥边赶上他们。
本地以zhangsan用户,密码123456登陆MySQL的命令为()