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assume cs:code,ds:data
data segment
BCDBUF db 46h
BCDH db ?
BCDL db ?
ASCH db ?
ASCL db ?
data ends
code segment
main proc far
start: mov ax,data
mov ds,ax
mov bx,0
mov al,BCDBUF
mov ah,al
shr ah,1
shr ah,1
shr ah,1
shr ah,1
mov BCDH,ah
and al,0fh
mov BCDL,al
add ah,30h
mov ASCH,ah
add al,30h
mov ASCL,al
mov ax,4c00h
int 21h
main endp
code ends
end start