Keyboard Functions

setupKbdCtrl

Replace the current keyboard related interrupt with my own

• IN: Nothing
• OUT: CF = Carry flag set on error

kbdCtrlRead

Read a byte from the keyboard controller

• IN: Nothing
• OUT: AL = Byte from read

kbdCtrlWrite

Send a byte to the keyboard controller

• IN: AL = Byte to write
• OUT: Nothing

kbdCtrlSendCmd

Send a command to the keyboard controller

• IN: BL = Command byte
• OUT: Nothing

kbdCtrlSelfTest

Preform a self test of the keyboard controller

• IN: Nothing
• OUT: CF = Carry flag set on error

kbdCtrlSetLeds

Set the keyboard leds

• IN: Nothing
• OUT: Nothing

kbdCtrlWaitUntillKey

Wait untill a key is pressed

• IN: Nothing
• OUT: AH, AL = Scan code, Ascii code

kbdCtrlCaptureInput

Get input from the keyboard and fill into the buffer

• IN: DS:SI = Location of input buffer
• OUT: DS:SI = Buffer updated with keys pressed

kbdCtrlHandler

Custom interrupt service/ handler for the keyboard controller

• IN: Nothing
• OUT: Nothing

kbdEncSendCmd

Send a command to the keyboard encoder

• IN: BL = Command byte
• OUT: Nothing

scanToAcsii

Convert a scan code to ascii and set status flags

• IN: AL = Scan code
• OUT: AH, AL = Scan code, Ascii code

kbdBiosFlushBuffer

Flush the most recent key in the BIOS keyboard buffer

• IN: Nothing
• OUT: Nothing

kbdBiosCheckBuffer

Check the BIOS keyboard buffer for a key

• IN: Nothing
• OUT: AX = Zero when empty

kbdBiosGetChar

Get a character and scan code from the BIOS keyboard buffer

• IN: Nothing
• OUT: AH, AL = Scan code, Ascii code

kbdBiosStoreKey

Shove a character and scan code into the BIOS keyboard buffer

• IN: CH, CL = Scan code, Ascii code
• OUT: AX = 0 Buffer full, 1 successfully stored

kbdBiosWaitUntillKey

Wait until a new character and scan code are in the BIOS keyboard buffer

• IN: Nothing
• OUT: AH, AL = Scan code, Ascii code

kbdBiosCaptureInput

Get input from the BIOS keyboard and fill into the buffer

• IN: DS:SI = Location of input buffer
• OUT: DS:SI = Buffer updated with keys pressed