APPENDIX1.5 Appendix E. ASCII Considerations for OS/390 and VM
The compiler supports the American National Standard Code for Information
Interchange (ASCII). Thus, the programmer can create and process tape
files recorded in accordance with the following standards:
ASCII-encoded tape files, when read into the system, are automatically
translated in the buffers into EBCDIC. Internal manipulation of data is
performed exactly as if the ASCII files were EBCDIC-encoded files. For an
output file, the system translates the EBCDIC characters into ASCII in the
buffers before writing the file on tape. Therefore, there are special
considerations concerning ASCII-encoded files when they are processed in
- American National Standard Code for Information Interchange, X3.4-1977
- American National Standard Magnetic Tape Labels for Information
- American National Standard Recorded Magnetic Tape for Information
Interchange (800 CPI, NRZI), X3.22-1967
This appendix also applies (with appropriate modifications) to the
International Reference Version of the ISO 7-bit code (ISCII) defined in
International Standard 646, 7-Bit Coded Character Set for Information
Processing Interchange. The ISCII code set differs from ASCII only in the
graphic representation of two code points:
Note: In the following discussion, the information given for STANDARD-1
also applies to STANDARD-2 except where otherwise specified.
- Ordinal number 37, which is a dollar sign in ASCII, but a lozenge in
- Ordinal number 127, which is a tilde (~) in ASCII, but an overline (or
optionally a tilde) in ISCII.
The following paragraphs discuss the special considerations concerning
ASCII- (or ISCII-) encoded files.
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