INT 21 U - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. SYSTEM 36/38 WORKSTATION EMULATION - VDI.SYS - GET ??? AX = 4402h BX = handle for character device "GDMS" CX = number of bytes to read (>= 4) DS:DX -> buffer (see #01445) Return: CF set on error AX = error code (see #01680 at AH=59h/BX=0000h) CF clear if successful AX = number of bytes read Format of System 36/38 emulator returned data: Offset Size Description (Table 01445) 00h 4 BYTEs ??? 04h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. pointer to ??? 08h 4 BYTEs ???