Nettet4. nov. 2002 · mov bx,WORD PTR dword1 Write an instruction that moves the lower 8 bits of word2 into the AL register. mov al,BYTE PTR word2 Write an instruction that moves EBX to location word1: mov DWORD PTR word1, ebx What is the value of the expression (TYPE word1)? 2 What is the value of the expression (TYPE dword1)? 4 Nettet13. apr. 2024 · 设置一个计算行数的变量,存放于bx寄存器中,bx=0时屏幕见a图,bx=1时见b图,bx=2时见c图,以此类推。当bx=24时,代表1、2、3已经显示结束,bx清零,重新开始显示,这样就做到了循环显示的目的。设置行从x0到x7依次选通,每一次选通后输出对应行需要点亮的led。
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Nettet= MOV AX, 2[BX+SI] CPU computes address = Value in • MOV AX, [ BX + SI + var ] CPU computes address Value in BX+SI+2 ... most instructions that use i ndirect addressing, the registers have to be loaded with address. • Two alternatives : MOV BX, OFFSET W Functionally equivalent! LEA BX, W • Both calculate and load the 16-bit effective ... Nettet6. nov. 2024 · MOV BX,OFFSET TABLE ;第三句的解释:意思是将TABLE的首地址传送给基址寄存器BX, OFFSET +X符识符,表示取X的首地址,整个语句的寻址方式为立即数寻址 ,MOV在这语句中起传送地址的作用.此时BX=TABLE (表示地址.) 汇编: OFFSET操作符 m0_37564426的博客 2万+ foncia obernai
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Nettet30. jul. 2024 · Get it now. 2. Compress the file using VLC. Download VLC and run it on your device. Open VLC and go to the File menu. Next, select the Convert option. Click … Nettet17. jun. 2024 · ; SI = указатель словаря ; DX = указатель строки ; CX = длина строки ; Следим за сохранением BX, в котором хранится числовое значение LATEST equ $+1 mov si , 0 .find: lodsw push ax ; сохранить указатель на следующую запись lodsb xor al , cl ; если длина ... Nettet26. des. 2010 · 下面程序段是实现把STR1中所有字符逆向传送到BUF缓冲区(即STR1中第一个字符送到BUF的最后一个单元,STR1中最后一字符送到BUF的第一个单元)。. 试把程序中所空缺的指令填上。. MOV SI,OFFSET BUF-1. MOV DI,OFFSET BUF. MOV CX,COUNT. __ CLD__. LOOP:MOVSB. __ SUB SI,2__ ;为什么 ... eight hundred forty two in french