diff --git a/14_day/asmhead.nas b/14_day/asmhead.nas
index b9448a0..85e9dd1 100644
--- a/14_day/asmhead.nas
+++ b/14_day/asmhead.nas
@@ -17,13 +17,13 @@ VRAM	EQU		0x0ff8			; 图像缓冲区的起始地址
 
 ;	画面设置
 
-		MOV		AL,0x13			; VGA显卡，320x200x8bit
-		MOV		AH,0x00
+		MOV		BX,0x4101				; VBE的640x480x8bi彩色
+		MOV		AX,0x4f02
 		INT		0x10
 		MOV		BYTE [VMODE],8	; 屏幕的模式（参考C语言的引用）
-		MOV		WORD [SCRNX],320
-		MOV		WORD [SCRNY],200
-		MOV		DWORD [VRAM],0x000a0000
+		MOV		WORD [SCRNX],640
+		MOV		WORD [SCRNY],480
+		MOV		DWORD [VRAM],0xe0000000
 
 ;	通过 BIOS 获取指示灯状态