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Line 45... Line 45...
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	movw %ax,%ss			# initialize stack segment register
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	movw %ax,%ss			# initialize stack segment register
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	movl $0x7c00,%esp		# initialize stack pointer
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	movl $0x7c00,%esp		# initialize stack pointer
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	call memmap_arch_init
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	call memmap_arch_init
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- 
 
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	lgdt gdtr			# initialize Global Descriptor Table register
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	lidt idtr			# initialize Interrupt Descriptor Table register
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	lgdt gdtr
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	movl %cr0,%eax
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	movl %cr0,%eax
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	orl $0x1,%eax
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	orl $0x1,%eax
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	movl %eax,%cr0
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	movl %eax,%cr0			# switch to protected mode
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	jmpl $8,$meeting_point
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	jmpl $8,$meeting_point
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meeting_point:
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meeting_point:
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.code32
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.code32
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	movw $16,%ax
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	movw $16,%ax
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	movw %ax,%gs
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	movw %ax,%gs
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	movw %ax,%fs
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	movw %ax,%fs
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	movw %ax,%ds			# kernel data + stack
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	movw %ax,%ds			# kernel data + stack
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	movw %ax,%ss
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	movw %ax,%ss
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	lidt idtr
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	call map_kernel
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	call map_kernel			# map kernel and turn paging on
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	movl $_hardcoded_ktext_size, hardcoded_ktext_size
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	movl $_hardcoded_ktext_size, hardcoded_ktext_size
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	movl $_hardcoded_kdata_size, hardcoded_kdata_size
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	movl $_hardcoded_kdata_size, hardcoded_kdata_size
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	movl $_hardcoded_load_address, hardcoded_load_address
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	movl $_hardcoded_load_address, hardcoded_load_address
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	movl %eax, (%edx)			# mapping 0x80000000 => 0x00000000
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	movl %eax, (%edx)			# mapping 0x80000000 => 0x00000000
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	leal page_directory, %eax
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	leal page_directory, %eax
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	movl %eax, %cr3
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	movl %eax, %cr3
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	# turn on paging
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	# turn paging on
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	movl %cr0, %ebx
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	movl %cr0, %ebx
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	orl $(1<<31), %ebx
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	orl $(1<<31), %ebx
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	movl %ebx, %cr0
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	movl %ebx, %cr0
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	ret
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	ret
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