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Rev 5201 Rev 5565
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                              ;;
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;;                                                              ;;
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;; Copyright (C) KolibriOS team 2007-2012. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2007-2015. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 5201 $
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$Revision: 5565 $
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; Virtual-8086 mode manager
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; Virtual-8086 mode manager
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; physical address = 0x9C000
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; physical address = 0x9C000
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; linear address = 0x8009C000
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; linear address = 0x8009C000
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; (I have seen one computer with EBDA segment = 0x9D80,
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; (I have seen one computer with EBDA segment = 0x9D80,
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; all other computers use less memory)
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; all other computers use less memory)
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        mov     eax, PG_UW
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        mov     eax, PG_UWR
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        mov     [page_tabs], eax
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        mov     [page_tabs], eax
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        invlpg  [eax]
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        invlpg  [eax]
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        mov     byte [0x500], 0xCD
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        mov     byte [0x500], 0xCD
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        mov     byte [0x501], 0x13
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        mov     byte [0x501], 0x13
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        mov     byte [0x502], 0xF4
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        mov     byte [0x502], 0xF4
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        mov     byte [0x503], 0xCD
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        mov     byte [0x503], 0xCD
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        mov     byte [0x504], 0x10
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        mov     byte [0x504], 0x10
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        mov     byte [0x505], 0xF4
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        mov     byte [0x505], 0xF4
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        mov     eax, 0x99000+PG_UW
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        mov     eax, 0x99000+PG_UWR
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        mov     edi, page_tabs+0x99*4
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        mov     edi, page_tabs+0x99*4
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        mov     edx, 0x1000
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        mov     edx, 0x1000
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        loop    @b
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        loop    @b
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; addresses 0xC0000 - 0xFFFFF - BIOS code (shared between all machines!)
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; addresses 0xC0000 - 0xFFFFF - BIOS code (shared between all machines!)
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; physical address = 0xC0000
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; physical address = 0xC0000
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        mov     eax, 0xC0000+PG_UW
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        mov     eax, 0xC0000+PG_UWR
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        mov     edi, page_tabs+0xC0*4
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        mov     edi, page_tabs+0xC0*4
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        mov     ecx, 64
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        mov     ecx, 64
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@@:
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@@: