Исправит ошибку в сдвигах

masm
model small
.stack 100h
 
; data segment - contains program data
.data
; description of the data
var_a   db  90
var_b   db  80
var_c   db      70
cur     dw      60
 
; code segment - contains program code
.code
start:
    mov ax,@data    ; standard start rows 
    mov ds,ax       ; 
        
;   ...
;   user command code
    mov AX,0
    mov cur,0       ;0000000000000000
    mov AL,var_c
    shl AL,3
    shr AL,6
    or cur,AX       ;0000000000000C2C1C0
    
    mov AL,var_a
    shl AL,3
    shr AL,7
    shl cur,2
    or cur,AX   ;00000000000A1A0C2C1C0
    
    mov AL,var_b
    shl AL,6
    shr AL,3
    shl cur,4
    or cur,AX   ;0000000B5B4B3B2A1A0C2C1C0
    
    mov AL,var_a
    shl AL,2
    shr AL,5
    shl cur,3
    or cur,AX   ;00000A3A2B5B4B3B2A1A0C2C1C0
    
    mov AL,var_c
    shl AL,4
    shr AL,3
    shl cur,3
    or cur,AX   ;00C5C4C3A3A2B5B4B3B2A1A0C2C1C0
    
    mov AL,var_b
    shl AL,2
    shr Al,7
    shl cur,3
    or cur,AX       ;B1B0C5C4C3A3A2B5B4B3B2A1A0C2C1C0 
        
;   ...
 
    mov ax,4c00h    ; standard finish rows
    int 21h     ; 
end start