Editing EBCDIC (section)

== Definitions of non-ASCII EBCDIC controls ==
Following are the definitions of EBCDIC control characters which either do not map onto the [[C0 and C1 control codes#C0 controls|ASCII control characters]], or have additional uses. When mapped to Unicode, these are mostly mapped to C1 control character codepoints in a manner specified by IBM's Character Data Representation Architecture (CDRA).<ref name="utr16cdra">{{cite web|url=https://www.unicode.org/reports/tr16/tr16-6.html#Step%202 |title=3.3 Step 2: Byte Conversion |work=UTF-EBCDIC |id=Unicode Technical Report #16 |last1=Umamaheswaran |first1=V.S. |publisher=[[Unicode Consortium]] |date=1999-11-08 |quotation=The 64 control characters...the ASCII DELETE character (U+007F)...are mapped respecting EBCDIC conventions, as defined in IBM Character Data Representation Architecture, CDRA, with one exception -- the pairing of EBCDIC Line Feed and New Line control characters are swapped from their CDRA default pairings to ISO/IEC 6429 Line Feed (U+000A) and Next Line (U+0085) control characters}}</ref><ref name="ms037">{{cite web|url=https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/EBCDIC/CP037.TXT |title=cp037_IBMUSCanada to Unicode table |last1=Steele |first1=Shawn |publisher=[[Microsoft]]/[[Unicode Consortium]] |date=1996-04-24}}</ref>

Although the default mapping of New Line (NL) corresponds to the ISO/IEC 6429 Next Line (NEL) character (the behaviour of which is also specified, but not required, in Unicode Annex 14),<ref>{{cite web|url=http://www.unicode.org/reports/tr14/tr14-43.html#NL |version=Revision 43 |title=NL: Next Line (A) (Non-tailorable) |work=Unicode Line Breaking Algorithm |id=Unicode Standard Annex #14 |date=2019-02-15 |first1=Andy |last1=Heninger |publisher=[[Unicode Consortium]]}}</ref> most of these C1-mapped controls match neither those in the [[C0 and C1 control codes#C1 control codes for general use|ISO/IEC 6429 C1 set]], nor those in other registered C1 control sets such as [[ISO 6630]].<ref>{{cite iso-ir|number=124 |title=Additional Control Functions for Bibliographic Use according to International Standard ISO 6630 |sponsor=ISO/TC 46 |date=1986-02-01}}</ref> Although this effectively makes the non-ASCII EBCDIC controls a unique C1 control set, they are not among the C1 control sets registered in the [[ISO-IR]] registry,<ref>{{citation|title=ISO/IEC International Register of Coded Character Sets To Be Used With Escape Sequences |id=ISO-IR |publisher=ITSCJ/[[Information Processing Society of Japan|IPSJ]] |url=https://itscj.ipsj.or.jp/english/vbcqpr00000004qn-att/ISO-IR.pdf}}</ref> meaning that they do not have an assigned control set designation sequence (as specified by [[ISO/IEC 2022]], and optionally permitted in [[ISO/IEC 10646]] (Unicode)).<ref>{{citation|mode=cs1 |id=ISO/IEC 10646 |title=Information technology — Universal Coded Character Set (UCS) |author=ISO/IEC JTC 1/SC 2 |author-link=ISO/IEC JTC 1/SC 2 |publisher=[[ISO]] |edition=5th |year=2017 |url=https://standards.iso.org/ittf/PubliclyAvailableStandards/c069119_ISO_IEC_10646_2017.zip |section=12.4: Identification of control function set |pages=19–20 |quotation=For other C0 or C1 sets, the final octet F shall be obtained from the International Register of Coded Character Sets....If such an escape sequence appears within a code unit sequence conforming to this International Standard, it shall be padded in accordance with Clause 11.}}</ref>

Besides U+0085 (Next Line), the Unicode Standard does not prescribe an interpretation of C1 control characters, leaving their interpretation to higher level protocols (it suggests, but does not require, their ISO/IEC 6429 interpretations in the absence of use for other purposes),<ref>{{cite book|url=https://www.unicode.org/versions/Unicode12.0.0/ch23.pdf#page=3 |chapter=23.1: Control Codes |title=The Unicode Standard |edition=12.0.0 |date=2019 |author=Unicode Consortium |author-link=Unicode Consortium |isbn=978-1-936213-22-1 |pages=868–870}}</ref> so this mapping is permissible in, but not specified by, Unicode.
{|class="wikitable sortable"
|-
! Mnemonic !! EBCDIC !! CDRA pairing<ref name="utr16cdra" /><ref name="ms037"/> !!class="unsortable"| Name !!class="unsortable"| Description<ref name="IBM_G-1"/>
|- id = "SEL"
| SEL ||data-sort-value="4" rowspan=2| 04 ||data-sort-value="156" rowspan=2| 009C || Select || Device control character taking a single-byte parameter.
|- id = "PF"
| PF || Punch Off || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "RNL"
| RNL ||data-sort-value="6" rowspan=2| 06 ||data-sort-value="134" rowspan=2| 0086 || Required New Line || Line-break resetting {{Control code link|internal=1|IT|Indent Tab}} mode
|- id = "LC"
| LC || Lower Case || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "GE"
| GE ||data-sort-value="8"| 08 ||data-sort-value="151"| 0097 || Graphic Escape || Non-locking shift that changes the interpretation of the following character (see e.g. [[Code page 310]]). Compare ISO/IEC 6429's {{Control code link|SS2}} (008E).
|- id = "SPS"
| SPS ||data-sort-value="9"| 09 ||data-sort-value="141"| 008D || Superscript || Begin superscript or undo subscript. Compare ISO/IEC 6429's {{Control code link|PLU}} (008C).
|- id = "RPT"
| RPT ||data-sort-value="10" rowspan=2| 0A ||data-sort-value="142" rowspan=2| 008E || Repeat || Switch to an operation mode repeating a print buffer
|- id = "SMM"
| SMM || Start of Manual Message || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "RES/ENP"
| RES/ENP ||data-sort-value="20"| 14 ||data-sort-value="157"| 009D || Restore, Enable Presentation || Resume output (after {{Control code link|internal=1|BYP/INP}})
|- id = "NL"
| NL ||data-sort-value="21"| 15 ||data-sort-value="133"| 0085 (000A) || [[Newline|New Line]] || Line break. Default mapping (0085) matches ISO/IEC 6429's {{Control code link|NEL}}. Mappings sometimes swapped with Line Feed (EBCDIC 0x25) in accordance with UNIX line breaking convention.<ref name="utr16cdra" />
|- id = "POC"
| POC ||data-sort-value="23" rowspan=2| 17 ||data-sort-value="135" rowspan=2| 0087 || Program Operator Communication || Followed by two one-byte operators that identify the specific function, for example a light or function key. Contrast with ISO/IEC 6429's {{Control code link|CSI}} (009B), {{Control code link|ANSI:OSC}} (009D) and {{Control code link|APC}} (009F).
|- id = "IL"
| IL || Idle || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "UBS"
| UBS ||data-sort-value="26" rowspan=2| 1A ||data-sort-value="146" rowspan=2| 0092 || Unit Backspace || A fractional backspace.
|- id = "CC"
| CC || Cursor Control || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "CU1"
| CU1 ||data-sort-value="27"| 1B ||data-sort-value="143"| 008F || Customer Use One || Not used by IBM; for customer use.
|- id = "IUS/ITB"
| IUS/ITB ||data-sort-value="31"| 1F ||data-sort-value="31"| 001F || Interchange Unit Separator, Intermediate Transmission Block || Either used as an information separator to terminate a block called a "unit" (as [[Unit Separator|in ASCII]]; see also {{Control code link|internal=1|IR}}), or used as a transmission control code to delimit the end of an intermediate block.
|- id = "DS"
| DS ||data-sort-value="32"| 20 ||data-sort-value="128"| 0080 || Digit Select || Used by S/360 CPU edit (ED) instruction
|- id = "SOS"
| SOS ||data-sort-value="33"| 21 ||data-sort-value="129"| 0081 || Start of Significance || Used by S/360 CPU edit (ED) instruction. (Note: different from ISO/IEC 6429's {{Control code link|ANSI:SOS}}; where distinguishing them is necessary, IBM abbreviates Start of Significance as {{code|SOS.}} (with a dot) and Start of String as {{code|SOS}}, otherwise they are abbreviated the same.)<ref>{{cite web |url=https://www.ibm.com/downloads/cas/G01BQVRV#page=327 |page=327 |title=Character Data Representation Architecture (CDRA) |author=IBM |website=[[IBM]] |author-link=IBM |quotation=The mnemonic for the Start of Significance control character in EBCDIC has been modified to include a dot (.) at the end (SOS.). This has been done to distinguish it from the SOS mnemonic used in ISO-8 for the Start of String control character. The dot does not alter the property of the control in any way.}}</ref>
|- id = "FS"
| FS,<ref name="IBM_G-1"/> FDS<ref name="gost19768"/> ||data-sort-value="34"| 22 ||data-sort-value="130"| 0082 || Field Separator || Used by S/360 CPU edit (ED) instruction. (Note: {{Control code link|IFS|(Interchange) File Separator}}, as abbreviated FS in ASCII, is at 0x1C and abbreviated IFS.)<ref name="IBM_G-1"/>
|- id = "WUS"
| WUS ||data-sort-value="35"| 23 ||data-sort-value="131"| 0083 || Word Underscore || Underscores the immediately preceding word. Contrast with ISO/IEC 6429's [[ANSI escape code#SGR parameters|SGR]].
|- id = "BYP/INP"
| BYP/INP ||data-sort-value="36"| 24 ||data-sort-value="132"| 0084 || Bypass, Inhibit Presentation || De-activates output, i.e. ignores all graphical characters and control characters besides transmission control codes and RES/ENP, until the next {{Control code link|internal=1|RES/ENP}}.
|- id = "SA"
| SA ||data-sort-value="40"| 28 ||data-sort-value="136"| 0088 || Set Attribute || Marks the beginning of a fixed-length device specific control sequence. Deprecated in favour of {{Control code link|internal=1|CSP}}.
|- id = "SFE"
| SFE ||data-sort-value="41"| 29 ||data-sort-value="137"| 0089 || Start Field Extended || Marks the beginning of a variable-length device specific control sequence. Deprecated in favour of {{Control code link|internal=1|CSP}}.
|- id = "SM/SW"
| SM/SW ||data-sort-value="42"| 2A ||data-sort-value="138"| 008A || Set Mode, Switch || Device specific control that sets a mode of operation, such as a buffer switch.
|- id = "CU2"
| CU2 ||data-sort-value="43" rowspan=2| 2B ||data-sort-value="139" rowspan=2| 008B || Customer Use Two || This appears in some specifications, such as [[DKOI|GOST 19768-93]];<ref name="gost19768">{{cite web |language=ru |id=GOST 19768-93 |date=1993 |author=[[GOST]] |url=http://docs.cntd.ru/document/gost-19768-93 |title=Информационная технология. Наборы 8-битных кодированных символов. Двоичный код обработки информации|trans-title=Information technology. 8-bit coded character sets. Binary code for information processing}}</ref> newer IBM specifications for EBCDIC control codes list only CU1 and CU3 as customer-use, and use this position for {{ctrl|CSP|internal=1}}.<ref name="IBM_G-1"/>
|- id = "CSP"
| CSP || Control Sequence Prefix || Marks the beginning of a variable-length device specific control sequence. Followed by a class byte specifying a category of control function, a count byte giving the sequence length (including count and type bytes, but not the class byte or initial CSP), a type byte identifying a control function within that category, and zero or more parameter bytes. Contrast with ISO/IEC 6429's {{Control code link|DCS}} (0090) and {{Control code link|CSI}} (009B).
|- id = "MFA"
| MFA ||data-sort-value="44"| 2C ||data-sort-value="140"| 008C || Modify Field Attribute || Marks the beginning of a variable-length device specific control sequence. Deprecated in favour of {{Control code link|internal=1|CSP}}.
|-
|  ||data-sort-value="48"| 30 ||data-sort-value="144"| 0090 || ''(reserved)'' || Reserved for future use by IBM
|-
|  ||data-sort-value="49"| 31 ||data-sort-value="145"| 0091 || ''(reserved)'' || Reserved for future use by IBM
|- id = "IR"
| IR ||data-sort-value="51"| 33 ||data-sort-value="147"| 0093 || Index Return || Either move to start of next line (see also {{Control code link|internal=1|NL}}), or terminate an information unit (see also {{Control code link|internal=1|IUS/ITB}}).
|- id = "PP"
| PP ||data-sort-value="52" rowspan=2| 34 ||data-sort-value="148" rowspan=2| 0094 || Presentation Position || Followed by two one-byte parameters (firstly function, secondly number of either column or line) to set the current position.<!-- Is there any publicly available documentation, or at least source code, giving more detail on this parameter format? --> Contrast with ISO/IEC 6429's [[ANSI escape code#Terminal output sequences|CUP and HVP]].
|- id = "PN"
| PN || Punch On || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "TRN"
| TRN ||data-sort-value="53" rowspan=2| 35 ||data-sort-value="149" rowspan=2| 0095 || Transparent || Followed by one byte parameter that indicates the number of bytes of transparent data that follow.
|- id = "RST"
| RST || Reader Stop || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "NBS"
| NBS ||data-sort-value="54" rowspan=2| 36 ||data-sort-value="150" rowspan=2| 0096 || Numeric Backspace || Move backward the width of one digit.
|- id = "UC"
| UC || Upper Case || Listed in this location by [[DKOI|GOST 19768-93]].<ref name="gost19768"/>
|- id = "SBS"
| SBS ||data-sort-value="56"| 38 ||data-sort-value="152"| 0098 || Subscript || Begin subscript or undo superscript. Compare ISO/IEC 6429's {{Control code link|PLD}} (008B).
|- id = "IT"
| IT ||data-sort-value="57"| 39 ||data-sort-value="153"| 0099 || Indent Tab || Indents the current and all following lines, until {{Control code link|internal=1|RNL}} or {{Control code link|internal=1|RFF}} is encountered.
|- id = "RFF"
| RFF ||data-sort-value="58"| 3A ||data-sort-value="154"| 009A || Required Form Feed || Page-break resetting {{Control code link|internal=1|IT|Indent Tab}} mode.
|- id = "CU3"
| CU3 ||data-sort-value="59"| 3B ||data-sort-value="155"| 009B || Customer Use Three || Not used by IBM; for customer use.
|-
|  ||data-sort-value="62"| 3E ||data-sort-value="158"| 009E || ''(reserved)'' || Reserved for future use by IBM
|- id = "EO"
| EO ||data-sort-value="255"| FF ||data-sort-value="159"| 009F || [[Eight Ones]] || All ones character used as filler
|}