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750 victor 1 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                              ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
593 mikedld 7 
 
465 serge 8 
$Revision: 847 $
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593 mikedld 10 
 
465 serge 11 
 
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align 4
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586 serge 15 
init_BIOS32:
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           mov edi, 0xE0000
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.pcibios_nxt:
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           cmp dword[edi], '_32_' ; "magic" word
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           je .BIOS32_found
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.pcibios_nxt2:
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           add edi, 0x10
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           cmp edi, 0xFFFF0
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           je .BIOS32_not_found
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           jmp .pcibios_nxt
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.BIOS32_found:			; magic word found, check control summ
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           movzx ecx, byte[edi + 9]
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           shl ecx, 4
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           mov esi, edi
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           xor eax, eax
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           cld   ; paranoia
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@@:	lodsb
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           add ah, al
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           loop @b
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           jnz .pcibios_nxt2 ; control summ must be zero
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    ; BIOS32 service found !
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           mov ebp, [edi + 4]
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           mov [bios32_entry], ebp
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    ; check PCI BIOS present
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           mov eax, '$PCI'
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           xor ebx, ebx
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           push cs  ; special for 'ret far' from  BIOS
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           call ebp
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           test al, al
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           jnz .PCI_BIOS32_not_found
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 ; здесь создаются дискрипторы для PCI BIOS
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           add ebx, OS_BASE
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           dec ecx
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           mov [(pci_code_32-OS_BASE)], cx    ;limit 0-15
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           mov [(pci_data_32-OS_BASE)], cx    ;limit 0-15
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           mov [(pci_code_32-OS_BASE)+2], bx  ;base  0-15
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           mov [(pci_data_32-OS_BASE)+2], bx  ;base  0-15
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           shr ebx, 16
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           mov [(pci_code_32-OS_BASE)+4], bl  ;base  16-23
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           mov [(pci_data_32-OS_BASE)+4], bl  ;base  16-23
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           shr ecx, 16
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           and cl, 0x0F
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           mov ch, bh
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           add cx, D32
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           mov [(pci_code_32-OS_BASE)+6], cx  ;lim   16-19 &
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           mov [(pci_data_32-OS_BASE)+6], cx  ;base  24-31
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           mov [(pci_bios_entry-OS_BASE)], edx
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         ; jmp .end
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.PCI_BIOS32_not_found:
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	; здесь должна заполнятся pci_emu_dat
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.BIOS32_not_found:
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.end:
837 serge 74 
           ret
586 serge 75