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Rev 7122 Rev 7132
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;; Copyright (C) KolibriOS team 2008-2015. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2008-2015. 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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 7122 $
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$Revision: 7132 $
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; Detect all BIOS hard drives.
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; Detect all BIOS hard drives.
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; diamond, 2008
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; diamond, 2008
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; Do not include USB mass storages. CleverMouse, 2013
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; Do not include USB mass storages. CleverMouse, 2013
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; Read the number of sectors, bytes per sector. dunkaist, 2017
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; Read the number of sectors, bytes per sector. dunkaist, 2017
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        xor     cx, cx
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        xor     cx, cx
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        mov     es, cx
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        mov     es, cx
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        mov     di, BOOT_BIOS_HD
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        mov     di, BOOT_LO.bios_hd
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        mov     byte [es:di-1], cl
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        mov     byte [es:di-1], cl
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        jc      bddc2
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        jc      bddc2
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        cmp     word [es:si], 1Eh
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        cmp     word [es:si], 1Eh
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        jb      .noide
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        jb      .noide
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        cmp     word [es:si+1Ah], 0xFFFF
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        cmp     word [es:si+1Ah], 0xFFFF
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        jz      .noide
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        jz      .noide
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        inc     byte [es:BOOT_BIOS_HD_CNT]
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        inc     byte [es:BOOT_LO.bios_hd_cnt]
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        mov     al, dl
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        mov     al, dl
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        stosb
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        stosb
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        push    ds
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        push    ds
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        push    si
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        push    si
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        lds     si, [es:si+1Ah]
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        lds     si, [es:si+1Ah]
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        cmp     word [es:si+28h], 'US'
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        cmp     word [es:si+28h], 'US'
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        jnz     .nousb
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        jnz     .nousb
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        cmp     byte [es:si+2Ah], 'B'
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        cmp     byte [es:si+2Ah], 'B'
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        jz      bddc2
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        jz      bddc2
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.nousb:
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.nousb:
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        inc     byte [es:BOOT_BIOS_HD_CNT]
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        inc     byte [es:BOOT_LO.bios_hd_cnt]
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        mov     al, dl
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        mov     al, dl
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        stosb
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        stosb
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        xor     ax, ax
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        xor     ax, ax
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        stosb
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        stosb
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        dec     ax
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        dec     ax