System information

Table 5-3. (continued)
Character Edit Control Function
CTRL-M (return) terminates input line
CTRL-R retypes the current line after new line
CTRL-U removes current line
CTRL-X same as CTRL-U
The user should also note that certain functions that return the carriage to the leftmost position
(for example, CTRL-X) do so only to the column position where the prompt ended. In earlier
releases, the carriage returned to the extreme left margin. This convention makes operator data
input and line correction more legible.
FUNCTION11: GET CONSOLE STATUS
Entry Parameters:
Register C: 0BH
Returned Value:
Register A: Console Status
The Console Status function checks to see if a character has been typed at the console. If a
character is ready, the value 0FFH is returned in register A. Otherwise a 00H value is returned.
5.2 Call Conventions CP/M Operating System Manual
5-17