Int 6F  - Novell Netware - PCox API (3270 Pc Terminal Interface)           [N]

   AX = function
       0000h enter terminal mode

       Return: AX = status
               0000h no action requested
               0001h screen save
       0001h reset interface and set configuration parameters
       DX = bitfields
           bits 2-0: model number
           bits 4-3: I/O address
           bits 6-5: DMA channel

       Return: nothing
       0002h set display parameters
       DX = bitfields
           bits 1-0: OIA mode
           bits 4-2: monitor support

       Return: nothing
       0003h read status

       Return: AX = status word (see below)
       0004h read cursor position

       Return: AX = cursor position
       0005h get character from device buffer
       DX = cursor position

       Return: AH = type (00h data, 01h attribute)
           AL = data or attribute character
       0006h send character
       DH = type (00h ASCII, 01h extended code)
       DL = ASCII character or extended code

       Return: nothing
       0007h set timeout
       DX = timeout in seconds

       Return: nothing
       0008h wait for location to be modified
       DX = cursor position

       Return: AX = status (0000h modified, nonzero timeout)
       0009h NOP
       000Ah restore display

       Return: nothing
       000Bh update device buffer

       Return: AX = cursor positoin
       000Ch write string to add information area
       DS:DX -> string

       Return: nothing
       000Dh maintenance operations
       DX = maintenance operation code

       Return: AX = operation status
       000Eh get control program version

       Return: AH = release number (major version)
           AL = level number (minor version)
       000Fh get microcode version

       Return: AH = release number (major version)
           AL = level number (minor version)
       0010h save or display graphics
       BX = length of data buffer
       CX = subfunction request code
       DS:DX -> data buffer

       Return: AX = return code
           CX = length of PIF data
       0011h perform structured field operation
       CX = request number
       DS:DX -> parameter list

       Return: AX = status word (see below)
           CX = error number
       0012h set cursor position for direct write buffer
       DX = new cursor position

       Return: AX = status word (see below)
       0013h write direct to buffer
       DL = character to be written
       DH = translation option

       Return: AX = status word (see below)
       0014h write direct to buffer without echo
       DL = character to be written
       DH = translation option

       Return: AX = status word (see below)
       0015h set direct write string length
       DX = string value

       Return: nothing
       0016h write string direct to buffer
       DS:DX -> string

       Return: AX = status word (see below)
       0017h write string direct to buffer, untranslated
       DS:DX -> string

       Return: AX = status word (see below)
       0018h get direct-write cursor position

       Return: AX = cursor position
       0019h convert row/column to cursor position
       DH = display row (1-43)
       DL = display column (1-132)

       Return: AX = cursor position
       001Ah convert cursor position to row/column
       DX = cursor position

       Return: AH = display row
           AL = display column
       001Bh find next field
       DX = initial cursor position

       Return: AX = field cursor position
       001Ch find previous field
       DX = initial cursor position

       Return: AX = field cursor position
       001Dh find next unprotected field
       DX = initial cursor position

       Return: AX = field cursor position
       001Eh find previous unprotected field
       DX = initial cursor position

       Return: AX = field cursor position
       001Fh find next protected field
       DX = initial cursor position

       Return: AX = field cursor position
       0020h find previous protected field
       DX = initial cursor position

       Return: AX = field cursor position
       0021h masked search forward
       DH = mask
       DL = search pattern

       Return: AX = cursor position or 0000h
       0022h masked search backward
       DH = mask
       DL = search pattern

       Return: AX = cursor position or 0FFFh
       0023h find field length
       DX = cursor position

       Return: AX = field length
       0024h read field
       DS:DX -> buffer for field contents

       Return: AX = status word (see below)
       0025h read screen
       DS:DX -> buffer for screen contents

       Return: AX = status word (see below)
       0026h read buffer untranslated
       DX = cursor position

       Return: AX = buffer code
           CX:BX -> 3278/79 device buffer image
       0027h enable/disable keyboard
       DL = new state of keyboard breaks (00h enabled, 01h disabled)

       Return: nothing
       0028h select host session
       DL = session short name

       Return: AX = session information
       0029h retrieve host session name
       AX = short name (DFT) or 0000h (not available, CUT mode)
       002Ah get current device buffer size

       Return: AX = device buffer size
           CX = segment of EAB
       002Bh arm modified location trigger
       DX = cursor position

       Return: AX = status (0000h not available, 0001h successful)

Bitfields for status word:
 bits 0,1 cursor type
 bit 2 cursor inhibited
 bit 3 display inhibited
 bit 4 feature step inhibited
 bit 5 480-character format code
 bits 6,7 unused
 bits 8-10 model number (2-5)
 bit 11    unit has been reset by controller (bit cleared after status returned)
 bit 12    buffer has been written into (bit cleared after status returned)
 bit 13    alarm has been sounded (bit cleared after status returned)
 bits 14-15 monitor type (01 mono, 10 color, 11 hybrid)