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Line 61... Line 61...
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	movw %cx, %ss
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	movw %cx, %ss
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	jmpl $selector(KTEXT_DES), $multiboot_meeting_point
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	jmpl $selector(KTEXT_DES), $multiboot_meeting_point
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	multiboot_meeting_point:
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	multiboot_meeting_point:
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	pushl %ebx							# save parameters from GRUB
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	movl %eax, grub_eax					# save parameters from GRUB
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	pushl %eax
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	movl %ebx, grub_ebx
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	xorl %eax, %eax
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	xorl %eax, %eax
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 	cpuid
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 	cpuid
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 	cmp $0x0, %eax						# any function > 0?
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 	cmp $0x0, %eax						# any function > 0?
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	jbe pse_unsupported
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	jbe pse_unsupported
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	mov %bx, KA2PA(vesa_bpp)
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	mov %bx, KA2PA(vesa_bpp)
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#endif
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#endif
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	call map_kernel							# map kernel and turn paging on
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	call map_kernel							# map kernel and turn paging on
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	popl %eax
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	movl grub_eax, %eax
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	popl %ebx
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	movl grub_ebx, %ebx
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	cmpl $MULTIBOOT_LOADER_MAGIC, %eax				# compare GRUB signature
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	cmpl $MULTIBOOT_LOADER_MAGIC, %eax				# compare GRUB signature
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	je valid_boot
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	je valid_boot
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		xorl %ecx, %ecx							# no memory size or map available
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		xorl %ecx, %ecx							# no memory size or map available
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		movl %ecx, e801memorysize
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		movl %ecx, e801memorysize
Line 479... Line 479...
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	jz 8b						# Force relative jump
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	jz 8b						# Force relative jump
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.code32
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.code32
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vesa_init_protect:
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vesa_init_protect:
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	popl %esp
 - 
 
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 - 
 
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	movw $selector(KDATA_DES), %cx
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	movw $selector(KDATA_DES), %cx
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	movw %cx, %es
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	movw %cx, %es
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	movw %cx, %fs
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	movw %cx, %fs
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	movw %cx, %gs
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	movw %cx, %gs
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	movw %cx, %ds					# kernel data + stack
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	movw %cx, %ds					# kernel data + stack
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	movw %cx, %ss
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	movw %cx, %ss
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- 
 
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	movl $START_STACK, %esp			# initialize stack pointer
- 
 
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	jmpl $selector(KTEXT_DES), $vesa_meeting_point
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	jmpl $selector(KTEXT_DES), $vesa_meeting_point
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.align 4
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.align 4
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e_vesa_init:
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e_vesa_init:
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#endif
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#endif
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.align 4096
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.align 4096
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page_directory:
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page_directory:
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	.space 4096, 0
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	.space 4096, 0
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- 
 
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grub_eax:
- 
 
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	.long 0
- 
 
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- 
 
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grub_ebx:
- 
 
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	.long 0
- 
 
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pse_msg:
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pse_msg:
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	.ascii "Page Size Extension not supported. System halted.\0"
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	.ascii "Page Size Extension not supported. System halted.\0"