Having a bit of difficulty getting my input to print once a white space character is inputted. So far, i have it to display the uppercase/lowercase of the input but once i enter a string it doesnt read whats after the white space character. any suggestions?

EDIT: intel x86 processor and im using EMU8086

org 100h

include 'emu8086.inc'
printn "Enter string to convert" 
mov dx,20
call get_string

printn
mov bx,di
mov ah,0eh

mov al,[ds+bx]
cmp al, 41h

cmp al, 5Ah
jle ToLower1
cmp al, 61h
cmp al, 7ah
jle ToUpper1

ToLower1:
add al, 20h
int 10h
jmp stop1
ToUpper1:
sub al, 20h
int 10h
stop1:

inc bx
mov al,[ds+bx]
cmp al, 41h

cmp al, 5Ah
jle ToLower2
cmp al, 61h

cmp al, 7ah
jle ToUpper2

ToLower2:
add al, 20h
int 10h
jmp stop2
ToUpper2:
sub al, 20h
int 10h
stop2:

inc bx
mov al,[ds+bx]
cmp al, 41h

cmp al, 5Ah
jle ToLower3
cmp al, 61h

cmp al, 7ah
jle ToUpper3

ToLower3:
add al, 20h
int 10h
jmp stop3
ToUpper3:
sub al, 20h
int 10h
stop3:

inc bx
mov al,[ds+bx]
cmp al, 41h

cmp al, 5Ah
jle ToLower4
cmp al, 61h

cmp al, 7ah
jle ToUpper4

ToLower4:
add al, 20h
int 10h
jmp stop4
ToUpper4:
sub al, 20h
int 10h
stop4:

inc bx
mov al,[ds+bx]
cmp al, 41h

cmp al, 5Ah
jle ToLower5
cmp al, 61h
cmp al, 7ah
jle ToUpper5

ToLower5:
add al, 20h
int 10h
jmp stop5
ToUpper5:
sub al, 20h
int 10h
stop5:



printn
hlt
define_get_string
define_print_string
end