n choose.com
a 100
cmp byte ptr [0080],00
jz 013e
dec byte ptr [0080]
mov bx,0082
xor cx,cx
mov cl,[0080]
and byte ptr [bx],df
inc bx
dec cx
loop 114
cld
mov ax,ds
mov es,ax
mov di,0082
xor cx,cx
mov cl,[0080]
mov ah,07
int 21
and al,df
cmp al,41
jb 0120
cmp al,5a
ja 0120
scasb
jz 013e
loop 0137
jmp 0120
dec cl
mov al,cl
mov ah,4c
int 21

rbx
0
rcx
46
w
q