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Appendix C
SYSLIB Restrictions
This appendix explains the restrictions of using SYSLIB.
C.1. ASM Compatibility
SYSLIB levels 75R2 and higher are not compatible with OS 2200 Assembler (ASM) level
15R1. ASM routines that use PROCs from SYSLIB levels 75R2 or higher may or may not
assemble correctly with ASM. If they do not, the routines should be assembled with
MASM (any supported level).
C.2. Object Modules
The only elements released in SYSLIB as object modules are ERU$ and SYS$DEF. All
other SYSLIB elements cannot be used as object modules. However, the subset of
SYSLIB routines in the SYSLIB common banks can be accessed from object modules.
SLIB provides equivalent services for the extended mode environment.
C.3. SDFI and SDFO Tape Handling
SDFI and SDFO are not compatible with PCIOS levels 4R1 and 4R1A when handling
multireel tape files.
When SDFI reads multireel tape files created by PCIOS, I/O error 01 (unlabeled tape) or
ER TLBL$ error 013 (labeled tape) occurs. When PCIOS reads multireel tape files
created by SDFO, unlabeled tapes are read correctly, but labeled tapes encounter I/O
error 01.
C.4. Symbolic Access Routine (SAR$)
SAR$ does not process data that is made up only of JIS-16 (kanji) characters. But SAR$
does process kanji characters when they are part of ASCII/ISO shift-coded data and
attributed character data (ACD).
C.5. 65K Addressing Limit
The elements PREPF$, POSTPR$, PREPRM, PREPRO, ROR, and SOR cause truncation
errors during collection if they are located above 65K in the D-bank.
7833 1733–004 C–1