BIOS / Int / Int 15 / 12/12


     INT 15 - TopView - SEND MESSAGE - "READN" - GET NEXT N OBJECT BYTES

Input			Output
AX	12h			AX
BX	12h	Object		BX
CX				CX
DX				DX
Stack	DWORD Count			ES:DI

Object:

        00h handle is DWORD on top of stack
        01h read next N chars/attributes on task's default window

Return: STACK: DWORD width of screen line
               DWORD address
               DWORD count actually read