IBM 5280 Distributed Data System - Index of

Hex Length inDisplace- Bytes (inment Hex) Description5CKeyboard Configuration Information:Bitrs)Meaning0 0 Single screen1 Dual screen0 Single screen or station 0 of dual screen.Dual screen, station 1.2-3 System use only.4 Katakana keyboard.5 Proof keyboard.6 Typewriter keyboard.7 Data entry keyboard.50 Keyboard Configuration Information:Bitrs) Meaning When 10 Not used.1 Maximum screen size is 1920.2 Maximum screen size is 960.3 Maximum screen size is 480.4-7 Not used.5EHigh-order byte of the address in keyboard/display storageof the validity table.5F 4 Display line map: Bits 0-25 of the 4-byte group indicatewhich screen lines are displayed (lines 0-25 respectively).Bits 26-31 are o.63 Language group; the number selected from the language/keyboards-type table during configuration.64 Low-order byte of the address in keyboard/display storageof the cursor address register.65 High-order byte of the address in keyboard/display storageof the control area.66 Low-order byte of the address in keyboard/display storageof the display control register.67 System use only.68 2 Displacement into the current field (0 to field length minus1) to the current character position.Main Storage Data Areas 73