BPXYSFDL — Map the server file descriptor list structure

The mapping macro only provides enough space for one file descriptor; follow the invocation with up to 63 additional words.

                                                      
            BPXYSFDL   ,                                                        
** BPXYSFDL: Dile descriptor List                                               
**  Used By: SPW                                                                
SFDL         DSECT ,                                                            
SFDLHEADER   DS  0CL8                                                           
SFDLCOUNT    DS  F     Number of entries in this file descriptor list           
SFDLFLAGS    DS  F     Flags                                                    
SFDLCLOSE    EQU X'80' All files to be closed (Bit 0 of SFDLFLAGS)              
SFDLDESC     DS  F     First FD(follow by COUNT-1 additional FDs)               
SFDLMAXCOUNT EQU 64    Maximum value for SFDLCOUNT                              
SFDL_LEN     EQU *-SFDL                                                         
** BPXYSFDL End