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Line 359... Line 359...
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; test_kbd:
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; test_kbd:
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;       in       al,64h    ;÷èòàåì ñîñòîÿíèå êëàâèàòóðû
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;       in       al,64h    ;÷èòàåì ñîñòîÿíèå êëàâèàòóðû
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;       test     al,2      ;ïðîâåðêà áèòà ãîòîâíîñòè
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;       test     al,2      ;ïðîâåðêà áèòà ãîòîâíîñòè
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;       loopnz   test_kbd
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;       loopnz   test_kbd
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        push    0
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        pop     es
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        and     word [es:0x9031], 0
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; check for PCI BIOS
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        mov     ax, 0xB101
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        int     0x1A
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        jc      .nopci
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        cmp     edx, 'PCI '
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        jnz     .nopci
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; find PCI class code
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; class 1 = mass storage
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; subclass 1 = IDE controller
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; a) class 1, subclass 1, programming interface 0x80
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        mov     ax, 0xB103
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        mov     ecx, 1*10000h + 1*100h + 0x80
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        mov     si, 0   ; device index = 0
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        int     0x1A
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        jnc     .found
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; b) class 1, subclass 1, programming interface 0x85
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        mov     ax, 0xB103
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        mov     ecx, 1*10000h + 1*100h + 0x85
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        mov     si, 0   ; device index = 0
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        int     0x1A
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        jnc     .found
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; c) class 1, subclass 1, programming interface 0x8A
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        mov     ax, 0xB103
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        mov     ecx, 1*10000h + 1*100h + 0x8A
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        mov     si, 0
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        int     0x1A
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        jc      .nopci
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.found:
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; get memory base
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        mov     ax, 0xB10A
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        mov     di, 0x20        ; memory base is config register at 0x20
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        int     0x1A
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        jc      .nopci
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        and     cx, 0xFFF0      ; clear address decode type
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        mov     [es:0x9031], cx
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.nopci:
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    mov   al,0xf6         ; Ñáðîñ êëàâèàòóðû, ðàçðåøèòü ñêàíèðîâàíèå
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    mov   al,0xf6         ; Ñáðîñ êëàâèàòóðû, ðàçðåøèòü ñêàíèðîâàíèå
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    out   0x60,al
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    out   0x60,al
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    xor   cx,cx
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    xor   cx,cx
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wait_loop:       ; variant 2
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wait_loop:       ; variant 2