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£¨4£©COUNT EQU DB2-DB1 7. ´ð£º

µÚÒ»¸öOR±íʾ¸ÃÖ¸ÁîÊÇORÖ¸ÁÔÚ³ÌÐòÔËÐÐʱ£¬¸ÃOR²Ù×÷±»Ö´ÐС£ µÚ¶þ¸öORÊÇÂß¼­²Ù×÷·ûOR£¬ÔÚ»ã±àʱ£¬ORÔËËã±»Ö´ÐС£

8.¶ÔÓÚÏÂÃæµÄÊý¾Ý¶¨Ò壬¸÷ÌõMOVÖ¸Áîµ¥¶ÀÖ´Ðкó£¬ÓйؼĴæÆ÷µÄÄÚÈÝÊÇʲô£¿ 4·Ö PREP DB ?

TABA DW 5 DUP(?) TABB DB ?NEXT? TABC DD 12345678H

1)MOV AX,TYPE PREP 2)MOV AX,TYPE TABA 3)MOV CX,LENGTH TABA 4)MOV DX,SIZE TABA 5)MOV CX,LENGTH TABB 6)MOV DX,SIZE TABC ´ð£º

£¨1£©£¨AX£©=1 £¨2£©£¨AX£©=2 £¨3£©£¨CX£©=5 £¨4£©£¨DX£©=0AH £¨5£©£¨CX£©=1 £¨6£©£¨DX£©=4

9.ÉèÊý¾Ý¶ÎDSEGÖзûºÅ¼°Êý¾Ý¶¨ÒåÈçÏ£¬ÊÔ»­³öÊý¾ÝÔÚÄÚ´æÖеĴ洢ʾÒâͼ¡£4·Ö DSEG SEGMENT DSP=100 SAM=DSP+20

DAB DB ?/GOTO/?,0DH,0AH DBB DB 101B,19£¬?a? .RADIX 16

CCB DB 10 DUP(?) EVEN

DDW DW ?12?,100D,333£¬SAM .RADIX 10 EDW DW 100 LEN EQU $-DAB DSEG ENDS ´ð£ºÂÔ¡£ 10. ´ð£º 19

11. ´ð£º 12. ´ð£º DSEG SEGMENT

STRING DB 'NEXT123DF$' DSEG ENDS CODE SEGMENT

ASSUME CS:CODE,DS:DSEG START:

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MOV AX,DSEG MOV DS,AX LEA SI,STRING MOV CX,0 AGAIN:

MOV AL,[SI] CMP AL,'$' JZ NEXT INC CX INC SI JMP AGAIN NEXT: MOV DX,CX MVDAT:

MOV [SI]+2,AL DEC SI

MOV AL,[SI] LOOP MVDAT MOV [SI]+2,AL

MOV WORD PTR [SI],DX EXIT:

MOV AH,4CH INT 21H CODE ENDS END START DSEG SEGMENT

STRING DB 'It is FEB&03' COUNT=$-STRING DSEG ENDS CODE SEGMENT

ASSUME CS:CODE,DS:DSEG START:

MOV AX,DSEG MOV DS,AX LEA SI,STRING MOV CX,COUNT AGAIN:

MOV AL,[SI] CMP AL,'&' JNZ NEXT MOV AL,' ' MOV [SI],AL NEXT: INC SI

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LOOP AGAIN EXIT:

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

DSEG SEGMENT

BLOCK DB 4,5,-2,7,8,9,2,1,0AH,1BH,87H,23H,44H,33H,45H,28H,0DH,8EH,66H,22H COUNT=$-BLOCK DSEG ENDS CODE SEGMENT

ASSUME CS:CODE,DS:DSEG START: MOV AX,DSEG MOV DS,AX

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13. ´ð£º (3)

(4)(2) (5)(1) (6) 1B50H 1000H 1A70H 150BH

Éϱí×ó²àµÄÐòºÅ£¬±íʾ¶ÔÓ¦²Ù×÷Íê³ÉºóSPÖ¸ÏòµÄÕ»¶¥µÄλÖᣠ14.Éè¼ÆÒÔÏÂ×Ó³ÌÐò£º

1£©½«AXÖеÄ4λBCDÂëת»»Îª¶þ½øÖÆÂ룬·ÅÔÚAXÖзµ»Ø¡£

2£©½«AXÖÐÎÞ·ûºÅ¶þ½øÖÆÊý£¨<9999D£©×ª»»Îª4λBCDÂë´®£¬·ÅÔÚAXÖзµ»Ø¡£ 3£©½«AXÖÐÓзûºÅ¶þ½øÖÆÊýת»»ÎªÊ®½øÖÆÊýASCIIÂë×Ö·û´®£¬DXºÍCX·µ»Ø´®µÄÆ«ÒƵØÖ·ºÍ³¤¶È¡££¨4·Ö£©´ð£º SUB1 PROC MOV BX,AX MOV CL,4 ROL BX,CL MOV AX,BX AND AX,000FH MOV CX,1000

MUL CX ;ǧλÔÚDX,AX,ÓÐЧֵÔÚAXÖÐ PUSH AX MOV CL,4 ROL BX,CL MOV AX,BX AND AL,0FH MOV CL,100

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MUL CL ;°ÙλÔÚAX POP CX

ADD AX,CX ;ǧ°ÙλÔÚAX PUSH AX MOV CL,4 ROL BX,CL MOV AX,BX AND AL,0FH MOV CL,10

MUL CL ;ʮλÔÚAX POP CX

ADD AX,CX ;ǧ°ÙʮλÔÚAX MOV CL,4 ROL BX,CL AND BX,0FH ADD AX,BX RET

SUB1 ENDP SUB2 PROC MOV DX,0 MOV CX,1000

DIV CX ;ǧλÊý×ÖÔÚAXÖÐ MOV BX,AX MOV CL,4

ROR BX,CL ;ǧλÊý×ÖÒÆÖÁBXµÄ¸ß4λ MOV AX,DX MOV CL,100

DIV CL ;°ÙλÊý×ÖÔÚALÖÐ OR BH,AL ;ǧ°ÙλÖÃBH MOV AL,AH MOV AH,0 MOV CL,10

DIV CL ;ʮλÊý×ÖÔÚALÖÐ,¸öλÔÚAHÖÐ MOV CL,4 SAL AL,CL

MOV BL,AL ;ʮλÊý×ÖÖÃBL¸ß4λ OR BL,AH ;ʮλ¸öλÖÃBL MOV AX,BX RET

SUB2 ENDP

SUB3 PROC PUSH BX MOV BX,0 LEA DI,ASCNUM

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