Text file of mouse bios functions used:

--------M-330003-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN POSITION AND BUTTON STATUS
	AX = 0003h
Return: BX = button status (see #03168)
	CX = column
	DX = row
Note:	in text modes, all coordinates are specified as multiples of the cell
	  size, typically 8x8 pixels
SeeAlso: AX=0004h,AX=000Bh,INT 2F/AX=D000h"ZWmous"

--------M-330005-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN BUTTON PRESS DATA
	AX = 0005h
	BX = button number (see #03169)
Return: AX = button states (see #03168)
	BX = number of times specified button has been pressed since last call
	CX = column at time specified button was last pressed
	DX = row at time specified button was last pressed
Note:	at least for the Genius mouse driver, the number of button presses
	  returned is limited to 7FFFh
SeeAlso: AX=0006h,INT 62/AX=007Ch

-------Mouse function tables:-------

(Table 03168)
Bitfields for mouse button status:
Bit(s)	Description
 0	left button pressed if 1
 1	right button pressed if 1
 2	middle button pressed if 1 (Mouse Systems/Logitech/Genius)

(Table 03169)
Values for mouse button number:
 0000h	left
 0001h	right
 0002h	middle (Mouse Systems/Logitech/Genius mouse)

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