求高手看看错哪里了?

.MODEL SMALL
.8086
.STACK
.CODE
.STARTUP
START:  MOV AX,ALL_LIGHT
MOV  DX,0200H
MOV DX,AX
AGAIN:
   MOV SI,OFFSET SITUATION
MOV DX,0200H
NEXT: MOV AX,[SI]
OUT DX,AX
CALL DELAY1
ADD SI,2
MOV AX,[SI]
OUT DX,AX
CALL DELAY2
ADD SI,2
CMP SI, OFFSET SIT_END
JB NEXT
JMP AGAIN
DELAY1 PROC NEAR
MOV BX,10000
LP1:  MOV CX,469
LP2: LOOP LP2
DEC BX
JNZ LP1
RET
DELAY1 ENDP
DELAY2 PROC NEAR
MOV BX,500
LP1: MOV CX,469
LP2:LOOP LP2
DEC BX
JNZ LP1
RET
DELAY2 ENDP
.DATA
SITUATION  DW  0000011110011110B
S1         DW  0000101110101110B
S2         DW  0000110011110011B
S3         DW  0000110101110101B
SIT_END=$
ALL_LIGHT         EQU   0000001001001001B
END
这是交通灯的