http://haodro.com/page/534 Nettet7. des. 2013 · MOV AH 0BH INT 21H是86单片机的DOS调用中断 完成的功能是:检验键盘状态 返回值:AL=00,有输入 AL=FF,无输入 扩展资料: 用汇编语言等非机器语言书写好的符号程序称为源程序,汇编语言编译器的作用是将源程序翻译成目标程序。 目标程序是机器语言程序,当它被安置在内存的预定位置上后,就能被计算机的CPU处理和执行。 …
Assembly language numbers: is MOV AX,1 ASCII or integer
NettetA. BX、AL B. AL、BX C. AX、BL D. BL、AX. View Code. 二、填空题(每空1 分,共5 分). 名词解释:请将1~3 小题的叙述与下面的词语联系起来,括号内填入对应的A,B,C … Nettet3. okt. 2024 · mov eax, a is 5 bytes of machine code, so achieves the same result more efficiently than lea rax, [rel a] (7 bytes). I only mentioned it as an example of when it … hsp scrl
assembly - mov ax, bx vs. mov ax, [bx] - Stack Overflow
Nettet12. nov. 2024 · In NASM you get the address simply by writing mov di, prompt. This has a shorter encoding than lea di, [prompt]. (In MASM this would be mov di, offset prompt … Nettet25. apr. 2024 · Your code would have the processor fetch a value from memory ([bx]) and store it into memory ([si]), but this is not a valid encoding for the MOV instruction. In … Nettet29. nov. 2024 · MOV AX,03FFH 该指令的意思是把03ffh这个十六进制的值赋给ax,结果与上图一致,ax的值变成了03ff 4.MOV BX,AX 执行该指令后: MOV BX,AX 该指令的意思是把AX的值赋给BX,如图所示,现在AX,BX的值都是03ff 5.MOV [0200H],BX MOV [0200H],BX 这条指令的意思是把bx的值赋值到ds: [0200H]这个地址里(基地址默认 … hobot r3 価格