MPE/iX Intrinsics Reference Manual (32650-90905)

Chapter 5 159
Command Definitions (FCONTROL - FLOCK)
FDEVICECONTROL
1
Remove character from input and back cursor up one
space (default)
5
Remove character from input and erase character
(backspace, space, backspace)
If issued against a terminal connected through PAD, CCE
(2) is returned, but the device control action does not occur.
56 Data bits per character:
Specifies whether 7-bits or 8-bits are used for each
character.
If 7-bits is selected, parity generation and checking is
controlled by the current parity setting. If the current
parity is set to "no parity" or parity checking is disabled,
parity is not in effect.
If 8-bits is selected, parity is set to "no parity" and the
current parity setting is saved, so when the user switches
back to 7-bits, parity is returned to its previous setting.
If issued against a terminal connected through PAD, CCE
(2) is returned, but the device control action does not occur.
57 Subsystem break character:
Returns the current subsystem break character.
60 Flush typeahead buffer:
Valid values are:
1
Flush the typeahead buffer before the next read is started.
Any data in the typeahead buffer is lost. Valid for the next
read only.
0
Disable the request.
Flush typeahead is enabled only if typeahead is enabled.
If issued against a terminal connected through PAD, CCE
(2) is returned, but the device control action does not occur.
61 Bypass typeahead buffer: Valid values are:
1
The next read is taken from the device, and any
information currently in the typeahead buffer is bypassed.
The data in the typeahead buffer is not flushed, and can be
obtained by a subsequent read. The request is valid for the