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code segment
assume cs:code,ds:code,es:code ;貌似必须的
org 100h
db 'hdha$'
db 'hdda$'
start:
mov si,100h
mov di,105h
mov ax,cs ;这个也必须
mov ds,ax
mov es,ax
mov cx,4h
cld ;这个事必须的
repz cmpsb ;rep要加Z
jl printl
jg printg
printe:
mov ah,2h
mov dl,31h
int 21h
jmp return
printl:
mov ah,2h
mov dl,32h
int 21h
jmp return
printg:
mov ah,2h
mov dl,33h
int 21h
return:
mov ah,4ch
int 21h
code ends
end start