NEC CP/M-86 - Other Functions

Basic I/O System (BIOS) Functions
5-18
Other Functions
NULL
Each of the remaining functions, 21 - 27, executes a simple
return without
an operation.
This function
is a high-level language interface to the BDOS
function 50 call. To use this function, the high level language
program must first set up the parameter values used by BDOS
function 50 in a five-byte memory area starting at location
40:250B. (See
BDOS function 50 for a description of the
parameter area.) The calling program then issues a Far Call to
BDOS function 50.