CCW does not exceed
it as an error. If the byte count is less than or equal to
makes an additional check for valid
only pertinent in the event that the user's channel program is directed to a device
that is capable of executing extended count-key-data channel commands (for
example, a
ing Buffer Feature).
CP converts user's channel programs to the extended count-key-data (CKD) for
mat when they:
Are directed to a
And contain no READs chained to READs or WRITEs which are, themselves,
chained to WRITEs.
An example of a channel program converted to an extended count-key-data chan
nel program is shown below.
data.
A typical CCW string to read or write two
SEEK,A,CC,6
SRCH,A+2,CC,5
B
If you are reading from or writing to either a
ple channel program would be converted to the following extended count-key-data
CCWs: