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Rev 5363 Rev 7122
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;;                                                              ;;
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;;                                                              ;;
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;;  See file COPYING for details                                ;;
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;;  See file COPYING for details                                ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 5363 $
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$Revision: 7122 $
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init_pci_16:
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init_pci_16:
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        pushad
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        pushad
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        xor     ax, ax
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        xor     ax, ax
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        mov     es, ax
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        mov     es, ax
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        mov     byte [es:0x9020], 1;default mechanism:1
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        mov     byte [es:BOOT_PCI_DATA], 1;default mechanism:1
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        mov     ax, 0xb101
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        mov     ax, 0xb101
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        int     0x1a
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        int     0x1a
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        or      ah, ah
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        or      ah, ah
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        jnz     pci16skip
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        jnz     pci16skip
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        mov     [es:0x9021], cl;last PCI bus in system
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        mov     [es:BOOT_PCI_DATA+1], cl;last PCI bus in system
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        mov     [es:0x9022], bx
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        mov     [es:BOOT_PCI_DATA+2], bx
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        mov     [es:0x9024], edi
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        mov     [es:BOOT_PCI_DATA+4], edi
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; we have a PCI BIOS, so check which configuration mechanism(s)
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; we have a PCI BIOS, so check which configuration mechanism(s)
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; it supports
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; it supports
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; AL = PCI hardware characteristics (bit0 => mechanism1, bit1 => mechanism2)
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; AL = PCI hardware characteristics (bit0 => mechanism1, bit1 => mechanism2)
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        test    al, 1
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        test    al, 1