Nettet10. jun. 2009 · MOV BX,OFFSET COUNT ;取得count的偏移地址1200即bx=1200H MOV SI, [BX] ;把ds: [bx]和ds: [bx+1]的内容赋给si(16位2个字节) ;即 (21200)和 (212001)的内容赋给si,si=1000H(高到底位) MOV AX,COUNT [SI] [BX] ;即ds: [bx+si+count]和ds: [bx+si+count+1]的内容赋给ax ;2000: [1200+1000+1200]和2000: … NettetAGAIN: ADD AX, COUNT [BX] ; ADD ELEMENT OF COUNT TO AX. Label—provides a Destination operand Comment Means of branching (register addressing) To this instruction . 23 MOV Instruction: » Copies ... MOV AX, 27H (b) MOV AL, 97FH (c) MOV DS, 9BF2H (d) MOV CX, 397H (e) MOV Si, 9516H (f) MOV CS, 3490
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Nettet微机原理考试试题 参考答案第1章一选择题1. c 2. d 3. b4. c 5. b 6. a7. d 8. c 9. c10. c 11. c 12. d二填空题1. 运算器;控制器;存储器;输入设备;输出设备2. 01100100;1 Nettet微机系统与汇编语言复习微机系统与汇编语言简答题1. 设a186,b273q,c0bbh,它们之间的关系是 a.abc b.abcc.abc d.abc2. 80868088的存贮器组织是将存储器划分为段,可作为段的起始地址是 a.185a2 purple gang leader michael meldish
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Nettetxor ax,ax stc mov cx,count mov si,offset array label1: adc ax,word ptr [si] add si,2 loop label1 label2: ———————- ———————- What will be the value in AX when control reaches label2? Show the calculation for all iteration for the value in AX. Write the final answer in hexadecimal. When the control reaches label2, AX ... Nettet20. jun. 2024 · If you didn't want to move the data for whatever reason, then you would have to insert an instruction to jump over it: org 100h count equ 2 jmp Begin A DW 5 B DW 6 Y0 DW ? Y1 DW ? Begin: mov AX,A add AX,B sub AX,count mov Y0,AX mov BX,B neg BX add BX,count mov Y1,BX ret Share Improve this answer Follow edited … Nettetmov ax,[1200h] 说明:源操作数为16位,al=1200h中的数据;ah=12001h中的数据(先低位后高位) 操作数默认为数据段(ds),允许重设. mov ax,es: [1200h] :为段重设 … purple gaming wallpaper 4k