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 */
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 */
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#include <arch/boot/memmapasm.h>
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#include <arch/boot/memmapasm.h>
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E820_RECORD_SIZE = MEMMAP_E820_RECORD_SIZE
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E820_MAX_RECORDS = MEMMAP_E820_MAX_RECORDS
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E820_SMAP = 0x534d4150
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E820_SMAP = 0x534d4150
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.global memmap_arch_init
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.global memmap_arch_init
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.global e801memorysize
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.global e801memorysize
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e820begin:
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e820begin:
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	xorl	%ebx,%ebx	# during first call, ebx must be 0
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	xorl	%ebx,%ebx	# during first call, ebx must be 0
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	movw	%bx,%ds
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	movw	%bx,%ds
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	movw	%bx,%es
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	movw	%bx,%es
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	movw	$e820table_boot,%di
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	movw	$e820table_boot,%di
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	movb	$E820_MAX_RECORDS,e820counter_boot
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	movb	$MEMMAP_E820_MAX_RECORDS,e820counter_boot
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e820loop:
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e820loop:
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	movl	$E820_SMAP,%edx 	# control sequence "SMAP"
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	movl	$E820_SMAP,%edx 	# control sequence "SMAP"
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	movl	$0x0000e820,%eax	# service
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	movl	$0x0000e820,%eax	# service
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	movl	$E820_RECORD_SIZE,%ecx
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	movl	$MEMMAP_E820_RECORD_SIZE,%ecx
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	int 	$0x15
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	int 	$0x15
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	jc	e820err
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	jc	e820err
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	cmpl	$E820_SMAP,%eax		# verifying BIOS
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	cmpl	$E820_SMAP,%eax		# verifying BIOS
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	jne	e820err
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	jne	e820err
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	cmpl	$E820_RECORD_SIZE,%ecx
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	cmpl	$MEMMAP_E820_RECORD_SIZE,%ecx
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	jne	e820err			# bad record size - bug in bios
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	jne	e820err			# bad record size - bug in bios
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	movw	%di,%ax		# next record
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	movw	%di,%ax		# next record
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	addw	$E820_RECORD_SIZE,%ax
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	addw	$MEMMAP_E820_RECORD_SIZE,%ax
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	movw	%ax,%di
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	movw	%ax,%di
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	decb	e820counter_boot # buffer is full
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	decb	e820counter_boot # buffer is full
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	jz	e820end
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	jz	e820end
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	cmpl	$0,%ebx
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	cmpl	$0,%ebx
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	jne	e820loop
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	jne	e820loop
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e820end:
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e820end:
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	movb	$E820_MAX_RECORDS,%al
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	movb	$MEMMAP_E820_MAX_RECORDS,%al
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	subb	e820counter_boot,%al
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	subb	e820counter_boot,%al
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	movb	%al,e820counter_boot # store # of valid entries in e820counter
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	movb	%al,e820counter_boot # store # of valid entries in e820counter
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	jmp	e801begin
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	jmp	e801begin
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