1130 Commercial Subroutine Package - All about the IBM 1130 ...

The use of the overlapped I/O portion of CSP is an "either/or" proposition. For nondiskI/O, the programmer must choose either the CSP overlapped routines or the standardFORTRAN routines. The two systems cannot be intermixed within the same program.Note the emphasis on nondisk. This exclusion does not apply to disk I/O, which may beused regardless which of the two systems is selected.Use of the overlapped I/O routines also excludes the employment of the TRACE featureof FORTRAN, since it uses portions of the FORTRAN package for output.The following routines are included in the CSP I/O group:READ PRINT TYPERPUNCH SKIP KEYBDR2501 P1403 STACKP1442 S1403If any of these routines are used, standard FORTRAN READ and WRITE commands maynot appear in the same program.When using Version 1 of the 1130 Disk Monitor System, the programmer must place thestatementCALL IONDbefore any STOP or PAUSE statement. This will ensure that all pending I/O interruptshave been serviced before the CPU stops or pauses. IOND should not be called if Version2 of the Monitor is in use.P1403, S1403, P1442, and R2501 use parts of the subroutine library supplied with Version2 of the 1130 Disk Monitor System. If they are to be used with a Version 1 Monitor, theVersion 2 subroutines must be loaded onto the Version 1 disk. See the detailed descriptionsof P1403, 51403, P1442, and R2501 for more particulars.DATA FORMATS USEDAlthough most of the CSP routines are oriented toward use of the Al format, several newformats have been introduced. In addition, several of the standard formats must be consideredin a different light.Al FORMATAl format consists of one character per 16-bit word, left-justified:characterblankbits 0 78 15