#pagma optimize("",off)
.text
.globl _pmode, pmode

pmode:
_pmode:
	
	cli /* atomic */
	
	pop %eax /* pull the pointer to the GDT off the stack */ 
	lgdt $(%eax) /* point it */
	mov %eax, %cr0
	or %eax, 1
	mov %cr0, %eax
	jmp somewhere_else /* to clear out the instruction prefetch queue */
	nop
	
somewhere_else:	
	sti /* end of atomic */
	ret