cr0 보호모드 진입시 무한리부팅 현상..

아래는 부트로더 소스입니다..
여기서 cr0의 pe bit를 1로 설정하게되면 리부팅 현상이 발생합니다..
원인을 모르겟네요;;
gdt디스크립터도 가장 중요한 code 디스크립터와 data 디스크립터만 등록한 상황이라
디스크립터가 잘못되진 않은것같구요;;
ㅠ.ㅠ 뭐 잘못된 부분이 잇나요;;

.MODEL SMALL
.386P

.DATA
;===============================================================================
; GDT table descriptor
;===============================================================================
GDT_DESCR STRUCT
ALIGN 4
gdt_size WORD GDT_END - GDT - 1
gdt_location DWORD GDT+7E00H
GDT_DESCR ENDS

;===============================================================================
; GDT table
;===============================================================================
;----------------------------------
; GDT TABLE INDEX #0
; INDEX : NULL SELECTOR
;----------------------------------
GDT dd 0
dd 0
;----------------------------------
; GDT TABLE INDEX #1
; INDEX : 0x0008h
; TYPE : CODE SEGMENT
; RING LEVEL : 0
; ATTRIBUTES : Excute/Read, Nonconforming, 4GB
;----------------------------------
dw 0ffffh ; segment limit 15:00
dw 0000h ; base address 15:00
db 00h ; base address 23:16
db 10011010b ; P | DPL | S | TYPE
db 11001111b ; G | D/B | 0 | AVL | segment limit 19:16
db 00h ; base address 31:24

;----------------------------------
; GDT TABLE INDEX #2
; INDEX : 0x0010h
; TYPE : DATA SEGMENT
; RING LEVEL : 0
; ATTRIBUTES : Read/Write, 4GB
;----------------------------------
dw 0ffffh
dw 0000h
db 00h
db 10010010b
db 11001111b
db 00h

GDT_END EQU $

gdt_descriptor GDT_DESCR <>
msg_loader db "kernel loading..", 0h

.CODE
MAIN PROC
mov ax, 07E0h
push word ptr ax
mov ax, offset init
push word ptr ax
retf
init:
; Set DS and ES to the data segment.
MOV AX, @DATA
MOV DS, AX
MOV ES, AX
MOV SS, AX

CLI
LGDT gdt_descriptor

mov eax, cr0
or eax, 1
mov cr0, eax
jmp $+2

db 66h
db 0EAh
dd EntryPoint32
dw 08h

finish:
HLT
jmp finish

MAIN ENDP

EntryPoint32 PROC NEAR

finish:
HLT
jmp finish
EntryPoint32 ENDP

MSGOUT PROC
push bp
mov bp, sp
pusha
mov si, WORD ptr [bp+4]
print:
lodsb
or al, al
jz finish
mov ah, 0eh ; teletype output function
mov bx, 08h ; back/fore ground color
int 10h
jmp print
finish:
popa
pop bp
ret
MSGOUT ENDP

END MAIN