華電保定微機(jī)原理匯編實(shí)驗(yàn)-資料下載頁(yè)
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【正文】 。此處輸入堆棧段代碼STACKS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX 。此處輸入代碼段代碼 LEA DX,BUFFER MOV AH,10 INT 21H MOV CL,BUFFER+1 XOR CH,CH ADD DX,CX MOV BX,DX MOV BYTE PTR[BX+2],39。$39。 MOV AH,4CH INT 21HCODES ENDSEND START3. .將內(nèi)存單元存放的BCD碼25H在顯示器上輸出(即輸出字符’25’)。 DATAS SEGMENT 。此處輸入數(shù)據(jù)段代碼 DATA DB 25HDATAS ENDSSTACKS SEGMENT 。此處輸入堆棧段代碼STACKS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX 。此處輸入代碼段代碼 LEA BX,DATA MOV AL,[BX] AND AL,0F0H MOV CL,4 SHR AL,CL ADD AL,30H MOV DL,AL MOV AH,2 INT 21H MOV AL,[BX] AND AL,0FH ADD AL,30H MOV DL,AL MOV AH,2 INT 21H MOV AH,4CH INT 21HCODES ENDSEND START4. 將內(nèi)存單元存放的十進(jìn)制數(shù)25從顯示器上輸出((即輸出字符’25’)。DATAS SEGMENT 。此處輸入數(shù)據(jù)段代碼 DATA DB 25DATAS ENDSSTACKS SEGMENT 。此處輸入堆棧段代碼STACKS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX 。此處輸入代碼段代碼 LEA BX,DATA MOV AL,[BX] CBW MOV CL,10 DIV CL ADD AL,30H ADD AH,30H MOV BL,AH MOV DL,AL MOV AH,2 INT 21H MOV DL,BL MOV AH,2 INT 21H MOV AH,4CH INT 21HCODES ENDS END START5. 從鍵盤輸入10個(gè)個(gè)位數(shù)字（0~9之間的任意數(shù)字），并存儲(chǔ)到數(shù)據(jù)區(qū)INPUT中。DATAS SEGMENT 。此處輸入數(shù)據(jù)段代碼 BUFFER DB 20,0,20 DUP(?) INPUT DB 10 DUP(0)DATAS ENDSSTACKS SEGMENT 。此處輸入堆棧段代碼STACKS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX 。此處輸入代碼段代碼 LEA SI,BUFFER LEA DI,INPUT MOV AH,10 INT 21H MOV CL,BUFFER+1NEXT:MOV AL,[SI+2] SUB AL,30H MOV [DI],AL INC SI INC DI DEC CL JNZ NEXT MOV AH,4CH INT 21HCODES ENDSEND START6. 將數(shù)據(jù)段中的10個(gè)個(gè)位數(shù)數(shù)據(jù)從顯示器上輸出。DATAS SEGMENT 。此處輸入數(shù)據(jù)段代碼 DATA DB 1,2,3,4,5,6,7,8,9,0DATAS ENDSSTACKS SEGMENT 。此處輸入堆棧段代碼STACKS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX 。此處輸入代碼段代碼 LEA BX,DATA MOV CX,10NEXT:MOV AL,[BX] ADD AL,30H MOV DL,AL MOV AH,2 INT 21H INC BX DEC CX JNZ NEXTMOV AH,2 INT 21H MOV AH,4CH INT 21HCODES ENDS END START7. 輸入任意個(gè)字符存到BUFFER數(shù)據(jù)區(qū)（自己定義），輸入時(shí)以回車作為結(jié)束標(biāo)志。DATAS SEGMENT 。此處輸入數(shù)據(jù)段代碼 BUFFER DB 100,0,100 DUP(?)DATAS ENDSSTACKS SEGMENT 。此處輸入堆棧段代碼STACKS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX 。此處輸入代碼段代碼 LEA BX,BUFFER MOV AH,10 INT 21H MOV AH,4CH INT 21HCODES ENDS END START實(shí)驗(yàn)十、子程序1. 編寫(xiě)8位數(shù)求和子程序，并調(diào)用它完成10個(gè)數(shù)的求和程序。DATAS SEGMENT 。此處輸入數(shù)據(jù)段代碼 ARY DB 1,2,3,4,5,6,7,8,9,10 COUNT EQU $ARY SUM DB ?DATAS ENDSSTACKS SEGMENT 。此處輸入堆棧段代碼 DB 100 DUP(?)STACKS ENDSCODES SEGMENT ASSUME CS:CODES,DS:DATAS,SS:STACKSSTART: MOV AX,DATAS MOV DS,AX MOV AX,STACKS MOV SS,AX 。此處輸入代碼段代碼 CALL PROADD MOV AH,4CH INT 21HPROADD PROC NEAR PUSH AX PUSH CX PUSH SI LEA SI,ARY MOV CX,COUNT XOR AL,AL CLCNEXT:ADC AL,[SI] INC SI DEC CX JNZ NEXT XOR SUM,AL POP SI POP CX POP AX RETPROADD ENDP CODES ENDS END START
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