合工大匯編語言程序設計實驗報告(編輯修改稿)
2025-05-04 20:50 本頁面
【文章內容簡介】 MOV DS,AX mov bl,00010000b mov cx,8 mov si,0again: shl bl,1 jc next add si,3 loop againnext: add si,offset jmptable jmp sijmptable: jmp near ptr l1 jmp near ptr l2 jmp near ptr l3 jmp near ptr l4 jmp near ptr l5 jmp near ptr l6 jmp near ptr l7 jmp near ptr l8 l1: lea dx,str1 jmp outputl2: lea dx,str2 jmp outputl3: lea dx,str3 jmp outputl4: lea dx,str4 jmp outputl5: lea dx,str5 jmp outputl6: lea dx,str6 jmp outputl7: lea dx,str7 jmp outputl8: lea dx,str8 output: mov ah,9 int 21h MOV AH,4CH INT 21HCODES ENDSEND START（2）地址表。地址表，bl左到右依次是第18位DATAS SEGMENT str1 db 39。the 1 bit is 139。,0dh,0ah,39。$39。 str2 db 39。the 2 bit is 139。,0dh,0ah,39。$39。 str3 db 39。the 3 bit is 139。,0dh,0ah,39。$39。 str4 db 39。the 4 bit is 139。,0dh,0ah,39。$39。 str5 db 39。the 5 bit is 139。,0dh,0ah,39。$39。 str6 db 39。the 6 bit is 139。,0dh,0ah,39。$39。 str7 db 39。the 7 bit is 139。,0dh,0ah,39。$39。 str8 db 39。the 8 bit is 139。,0dh,0ah,39。$39。 addrtable dw show1,show2,show3,show4,show5,show6,show7,show8DATAS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATASSTART: MOV AX,DATAS MOV DS,AX mov bl,00001000b mov cx,8 mov si,0again: shl bl,1 jc next add si,2 loop againnext: jmp addrtable[si] show1: lea dx,str1 jmp outputshow2: lea dx,str2 jmp outputshow3: lea dx,str3 jmp outputshow4: lea dx,str4 jmp outputshow5: lea dx,str5 jmp outputshow6: lea dx,str6 jmp outputshow7: lea dx,str7 jmp outputshow8: lea dx,str8 jmp output output: mov ah,9 int 21h MOV AH,4CH INT 21HCODES ENDSEND START實驗內容二：編寫一個子程序計算z=f(x,y)=x*y+xy（x,y,z有符號數(shù)內存數(shù)）（1）堆棧傳遞參數(shù)。z=x*y+xy,x、y、z為有符號數(shù)，堆棧傳遞DATAS SEGMENTx dw 5y dw 2z dw ?DATAS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATASSTART: MOV AX,DATAS MOV DS,AX sub sp,2 push y push x call cal pop z mov bx,z MOV AH,4CH INT 21Hcal proc push bp mov bp,sp push ax push bx mov ax,[bp+4] mov bx,[bp+6] imul bx add ax,[bp+4] adc dx,0 sub ax,[bp+6] sbb dx,0 mov [bp+8],ax pop bx pop ax pop bp ret 4cal endpCODES ENDS END START（2）寄存器傳遞參數(shù)。z=x*y+xy,x、y、z為有符號數(shù)，寄存器傳遞DA
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