diff --git a/move.asm b/move.asm
index 56db34d..5fba8da 100644
--- a/move.asm
+++ b/move.asm
@@ -3,6 +3,84 @@
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 move:
 .scope
-;test
+	;lda #1				;演示用
+	;sta eat			
+	lda eat				;eat判断，进入两种移动模式
+	;bne +++++			;进入模式一：四种移动模式（吃到）（头动，尾不动）
+	lda d
+	;lda #go_l			;测试用
+	cmp #go_d
+	bne +
+	clc
+	lda shead			;new head 
+	adc #40
+	sta shead
+	lda shead+1
+	adc #0
+	sta shead+1
+	ldy #0				;head move down
+	lda #csnk
+	sta (shead),y    
 	rts
+*	cmp #go_r
+	bne +
+	clc
+	lda shead			;new head
+	adc #1
+	sta shead
+	lda shead+1
+	adc #0
+	sta shead+1
+	ldy #0				;head move right
+	lda #csnk
+	sta (shead),y    
+	rts
+*	cmp #go_l
+	bne +
+	clc
+	lda shead			;new head
+	sec
+	sbc #1
+	sta shead
+	lda shead+1
+	sbc #0
+	sta shead+1
+	ldy #0				;head move left
+	lda #csnk
+	sta (shead),y    
+	rts
+*	cmp #go_u
+	bne +
+	clc
+	lda shead			;new head
+	sec
+	sbc #40
+	sta shead
+	lda shead+1
+	sbc #0
+	sta shead+1
+	ldy #0				;head move up
+	lda #csnk
+	sta (shead),y    
+*	rts
+;模式二：四种移动模式
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;	lda d
+;	lda #go_d		;实验用
+;	cmp go_d
+;	beq +
+;	lda #csps
+;	ldy #0
+;	sta (shead),y
+;	lda #csnk
+;	ldy #40
+;	sta (shead),y
+;	clc
+;	lda shead
+;	adc #40
+;	sta shead
+;	lda shead+1
+;	adc #0
+;	sta shead+1
+;*	rts
 .scend
\ No newline at end of file