汇编语言大写字母转小写字母

最新推荐文章于 2024-10-12 18:00:59 发布

zl2187865448

最新推荐文章于 2024-10-12 18:00:59 发布

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文章标签：汇编

本文链接：https://blog.youkuaiyun.com/qq_63841588/article/details/130917549

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DATA SEGMENT

DATA ENDS
CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX

MOV AH,1
INT 21H

   CMP AL,'A'
   JE OUTA
   CMP AL,'B'
   JE OUTB
   CMP AL,'C'
   JE OUTC
   CMP AL,'D'
   JE OUTD
   CMP AL,'E'
   JE OUTE
   CMP AL,'F'
   JE OUTF
   CMP AL,'G'
   JE OUTG
   CMP AL,'H'
   JE OUTH
   CMP AL,'I'
   JE OUTI
   CMP AL,'J'
   JE OUTJ
   CMP AL,'K'
   JE OUTK
   CMP AL,'L'
   JE OUTL
   CMP AL,'M'
   JE OUTM
   CMP AL,'N'
   JE OUTN
   CMP AL,'O'
   JE OUTO
   CMP AL,'P'
   JE OUTP
   CMP AL,'Q'
   JE OUTQ
   CMP AL,'R'
   JE OUTR
   CMP AL,'S'
   JE OUTS
   CMP AL,'T'
   JE OUTT
   CMP AL,'U'
   JE OUTU
   CMP AL,'V'
   JE OUTV
   CMP AL,'W'
   JE OUTW
   CMP AL,'X'
   JE OUTX
   CMP AL,'Y'
   JE OUTY
   CMP AL,'Z'
   JE OUTZ

OUTA:   MOV DL,'a'
   JMP OUT
OUTB:   MOV DL,'b'
   JMP OUT
OUTC:   MOV DL,'c'
   JMP OUT
OUTD:   MOV DL,'d'
   JMP OUT
OUTE:   MOV DL,'e'
   JMP OUT
OUTF:   MOV DL,'f'
   JMP OUT
OUTG:   MOV DL,'g'
   JMP OUT
OUTH:   MOV DL,'h'
   JMP OUT
OUTI:   MOV DL,'i'
   JMP OUT
OUTJ:   MOV DL,'j'
   JMP OUT
OUTK:   MOV DL,'k'
   JMP OUT
OUTL:   MOV DL,'l'
   JMP OUT
OUTM:   MOV DL,'m'
   JMP OUT
OUTN:   MOV DL,'n'
   JMP OUT
OUTO:   MOV DL,'o'
   JMP OUT
OUTP:   MOV DL,'p'
   JMP OUT
OUTQ:   MOV DL,'q'
   JMP OUT
OUTR:   MOV DL,'r'
   JMP OUT
OUTS:   MOV DL,'s'
   JMP OUT
OUTT:   MOV DL,'t'
   JMP OUT
OUTU:   MOV DL,'u'
   JMP OUT
OUTV:   MOV DL,'v'
   JMP OUT
OUTW:   MOV DL,'w'
   JMP OUT
OUTX:   MOV DL,'x'
   JMP OUT
OUTY:   MOV DL,'y'
   JMP OUT
OUTZ:   MOV DL,'z'