xin微机原理与汇编语言程序设计 - 百度文库

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1ƳʵֽLISTеֵMAXԪĻʾֵԪΪ޷ݣݸCNTԪС :,ɰѵһȷAXĴ,AXеCNT-1бȽ,AXеС,λ;AXеڵȽϵ,λ,ڱȽϹ,AXʼձֽϴ,ȽCNT-1,߱AX,AXеMAXԪ

ο(ͬѧDzʾ) DATAS SEGMENT

out1 db 10 dup(?)

list dw 10,59,421,6,8 ;˴ݶδ cn dw ($-list)/2 max dw ?

DATAS ENDS

STACKS SEGMENT

;˴ջδ STACKS ENDS

CODES SEGMENT

ASSUME CS:CODES,DS:DATAS,SS:STACKS START:

MOV AX,DATAS MOV DS,AX

lea si,list;˴ݶδ mov cx,cn mov ax,[si] dec cx add si,2 a1:cmp ax,[si]

jae small mov ax,[si]

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small:

add si,2 loop a1 mov max,ax lea si,out1+3 next:

mov dx,0 mov bx,10

div bx;(ax)=,(dx)= or dl,30h

mov out1[si],dl dec si cmp ax,0 jnz next

mov out1+4,byte ptr'$' lea dx,out1 mov ah,9 int 21h MOV AH,4CH INT 21H CODES ENDS

END START

н 421

2NBUFΪִַ洢СԱдͳ6λΪȫ1ĸͳƽĻʾ DATAS SEGMENT

buf dw 5678,5946,0fc41h,1234;˴ݶδ cn dw ($-buf)/2 DATAS ENDS

STACKS SEGMENT

;˴ջδ STACKS ENDS

CODES SEGMENT

ASSUME CS:CODES,DS:DATAS,SS:STACKS START:

MOV AX,DATAS MOV DS,AX

lea si,buf;˴ݶδ mov cx,cn mov dl,0 poa:mov ax,[si]

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and ax,0fc00h cmp ax,0fc00h jnz next

inc dl;(ͳƸ6λΪ1) next:add si,2 loop poa mov al,dl mov ah,0 mov bl,10

div bl;(al)=ʮλ (ah)=λ mov bh,ah or al,30h mov dl,al mov ah,2 int 21h or bh,30h mov dl,bh mov ah,2 int 21h MOV AH,4CH INT 21H CODES ENDS

END START н 01

3дһûṩַָASCIIijҪûҪ֪ijһַASCII룬Ӽַ̼ʱ򽫸ַASCII밴ʮʽʾʾʽʾ THE ASCII CODE OF A IS 41H THE ASCII CODE OF 7 IS 37H THE ASCII CODE OF CRس)

ǻسʱʾASCII𣬽ִУDOS״̬ עĸA7ǴӼ롣 DATAS SEGMENT

tab db '0123456789ABCDEF';˴ݶδ OUT1 DB 0DH,0AH,'THE ASCII CODE 0F $' OUT2 DB 'IS',0,0,'H$' DATAS ENDS

STACKS SEGMENT

;˴ջδ STACKS ENDS

CODES SEGMENT

ASSUME CS:CODES,DS:DATAS,SS:STACKS

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START:

MOV AX,DATAS MOV DS,AX

LEA BX,TAB;˴ݶδ LOP:LEA DX,OUT1 MOV AH,9 INT 21H MOV AH,1 INT 21H CMP AL,0DH JE EXIT MOV DH,AL AND AL,0FH XLAT

MOV OUT2+3,AL MOV AL,DH MOV CL,4 SHR AL,CL XLAT

MOV OUT2+2,AL LEA DX,OUT2 MOV AH,9 INT 21H JMP LOP EXIT:

MOV AH,4CH INT 21H CODES ENDS END START

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