Pro-face PL-5900 Series, Руководство пользователя

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Chapter 6 - Setting Up Your PL OS
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PL-5900 Series User Manual
Function 10h Key input data read (AX keyboard)
Reads the input key data. (The function is associated with the AX keyboard.)
Input AH= 10h
Output AL= Primary code (character code)
AH= Secondary code (scan code)
Function 11h Key input data check. (AX keyboard)
Detects the data in the keyboard buffer.
(Function is associated with the AX keyboard).
Input AH= 11h
Output ZF= 0: Readable data in the keyboard buffer.
1: No readable data in the keyboard buffer.
AL= Primary code (character code)
AH= Secondary code (scan code)
Function 12h Shift status read (AX keyboard)
Returns the status of the special keys.
Input AH= 12h
Output AL= Shift status
Bit 7: Insert key
Bit 6: Caps Lock key (lamp status)
Bit 5: Num Lock key (lamp status)
Bit 4: Scroll Lock key (lamp status)
Bit 3: Alt key
Bit 2: Ctrl key
Bit 1: Shift Left key
Bit 0: Shift Right key
AH= Shift status
Bit 7: Alt+Sys key
Bit 6: Caps Lock key (key status)
Bit 5: Num Lock key (key status)
Bit 4: Scroll Lock key (key status)
Bit 3: Alt Right key
Bit 2: Ctrl Right key
Bit 1: Shift Left key
Bit 0: Shift Right key