MACRO                                                          00010000
         @CCW                                                           00020000
@CCW#CD  EQU   X'80'         * CHAIN DATA                               00030000
@CCW#CC  EQU   X'40'         * COMMAND CHAIN                            00040000
@CCW#SLI EQU   X'20'         * SUPPRESS LENGTH INDICATION               00050000
@CCW#SKP EQU   X'10'         * SKIP                                     00060000
@CCW#PCI EQU   X'08'         * PROGRAM CONTROLLED INTERRUPT             00070000
@CCW#IDA EQU   X'04'         * INDIRECT ADDRESS                         00080000
*                                                                       00090000
*                                                                       00100000
@CCW     DSECT ,                                                        00110000
@CCWCMD  DS    X             - COMMAND CODE                             00120000
@CCWDATA DS    AL3           - DATA ADDRESS                             00130000
@CCWFLAG DS    X             - FLAGS                                    00140000
         DS    X             - RESERVED (ZERO)                          00150000
@CCWLEN  DS    AL2 N         - LENGTH                                   00160000
*                                                                       00170000
         MEND  ,                                                        00180000