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Function 26

and its subfunctions (1, 2, 5, 9-12)

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'>Subfunction

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'> 1 - get the base port MPU MIDI

Options:

  * eax =

26 - function number

  * ebx = 1

- number of subfunction

Return value:

  * eax =

port number

Remarks:

  You can set the base

port by calling subfunction 1 of function 21.

Constants for registers:

  eax -

SF_SYSTEM_GET (26)

  ebx -

SSF_MPU_MIDI_BASE (1)

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'>Subfunction

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'> 2 - get keyboard layout

The keyboard layout is used to convert scancodes

coming from the keyboard into ASCII codes readable by function 2.

Options:

  * eax =

26 - function number

  * ebx = 2

- subfunction number

  * ecx =

which layout to get:

    * 1 = normal

    * 2 = layout when Shift is pressed

    * 3 = Layout while pressing Alt

  * edx =

pointer to the 128-byte buffer where the layout will be copied

Return value:

  * function does not return value

Or:

  * eax =

26 - function number

  * ebx = 2

- subfunction number

  * ecx = 9

Return value:

  * eax =

country identifier (1 = eng, 2 = fi, 3 = 

class=SpellE>ger, 4 = rus)

Remarks:

  If Alt is pressed,

the layout with Alt is used;

  if

Alt is not pressed, but Shift is pressed, then the layout with Shift is used;

  if

Alt and Shift are not pressed, but Ctrl is pressed, then the normal layout is

used, after which 0x60 is subtracted from the code;

  if

none of the control keys are pressed, then the normal layout is used.

  You can set the

layouts and country ID using sub-function 2 of function 21.

  The country

identifier is a global system variable that is not used by the kernel itself;

however, the @taskbar application displays an icon corresponding to the current

country (using the described function).

  The @taskbar

application switches layouts on user request.

Constants for registers:

  eax -

SF_SYSTEM_GET (26)

  ebx -

SSF_KEYBOARD_LAYOUT (2)

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'>Subfunction

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'> 5 - get system language

Options:

  * eax =

26 - function number

  * ebx = 5

- subfunction number

Return value:

  * eax =

system language (1 = eng, 2 = fi, 3 = 

class=SpellE>ger, 4 = rus)

Remarks:

  The system language is

a global system variable not used by the kernel itself, however, the @taskbar

application draws the corresponding icon (using the described function).

  You can set the

system language by calling subfunction 5 of function

21.

Constants for registers:

  eax -

SF_SYSTEM_GET (26)

  ebx -

SSF_SYS_LANG (5)

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'>Subfunction

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'> 9 - get the value of the time counter

Options:

  * eax =

26 - function number

  * ebx = 9

- subfunction number

Return value:

  * eax =

number of hundredths of a second since

    system startup

Remarks:

  The counter is taken

modulo 2 ^ 32, which corresponds to a little more than 497 days.

  System time can be

obtained by function 3.

Constants for registers:

  eax -

SF_SYSTEM_GET (26)

  ebx -

SSF_TIME_COUNT (9)

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'>Subfunction

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'> 10 - Get the value of a high-precision time

style='mso-bidi-font-weight:normal'> counter

lang=EN-US style='font-family:"Arial","sans-serif";mso-ansi-language:EN-US'>Options:

  * eax =

26 - function number

  * ebx =

10 - subfunction number

Returned value:

  * edx: 

class=SpellE>eax = number of nanoseconds since the kernel was loaded

  * eax =

low double word

  * edx =

senior double word

Remarks:

  The function uses an

HPET counter, if HPET is not available, a PIT counter is used. In this case,

the accuracy will be reduced to 10,000,000 nanoseconds.

Constants for registers:

  eax -

SF_SYSTEM_GET (26)

  ebx -

SSF_TIME_COUNT_PRO (10)

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'>Subfunction

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'> 11 - Find out if low-level access to HD is allowed

Options:

  * eax =

26 - function number

  * ebx =

11 - number of subfunction

Return value:

  * eax =

0/1 - disabled / enabled

Remarks:

  Used

in LBA reading (subfunction 8 of function 58).

You can set the current state by calling subfunction

11 of function 21.

Constants for registers:

  eax -

SF_SYSTEM_GET (26)

  ebx -

SSF_ACCESS_HD_LBA (11)

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'>Subfunction

lang=EN-US style='font-size:14.0pt;font-family:"Arial","sans-serif";mso-ansi-language:

EN-US'> 12 - Check if low-level access to PCI is allowed

Options:

  * eax =

26 - function number

  * ebx =

12 - subfunction number

Return value:

  * eax =

0/1 - disabled / enabled

Remarks:

  Used when working

with the PCI bus (function 62).

  The current

implementation uses only the low bit ecx.

  You can set the

current state by calling subfunction 12 of function 21.

Constants for registers:

  eax -

SF_SYSTEM_GET (26)

  ebx -

SSF_ACCESS_PCI (12)