Z88 Developers' Notes
Contents   Contents of System Calls

DC_Sp, handle Director/CLI settings

RST 20H, DEFW $180C

IN:

     C = reason code
       DQ_Dev ($00), define default device 
       DQ_Dir ($03), define default directory 
       DQ_Fnm ($06), define filename match string
     B = 0, always
     HL = points to a null-terminated string, the argument

OUT:

     Fc = 0,   Successful
     Fc = 1, A = RC error if failure

Registers affected after return:

     ..BCDEHL/IXIY same
     AF....../.... different

Notes:

Internal operating system usage.
DC_SP is a subcall of OS_SP, use OS_SP instead.
Attribute (Dev, Dir, Fnm) is set into Filer process if it is running, otherwise by Index.
If DQ_Dev argument points to null byte, PA_Dev is used as source.
Works if string at HL is terminated by a control-char ($00-$1F).

Bugs: -

Related calls:

DC_Sp, DC specify
DC_Nq, DC enquire
OS_Sp, specify
OS_NQ, enquire