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{{Short description|Character set was used in the Acorn Archimedes series}}
The [[Acorn Computers|Acorn]] [[RISC OS]] character set was used in the [[Acorn Archimedes]] series and subsequent computers from 1987 onwards. It is an extension of [[ISO/IEC 8859-1]], similar to the Windows [[CP1252]] in that many of the added characters are typographical punctuation marks.
==Code page layout (standard)==
At 0x83 is a box with another box inside it on the top left-hand corner, meaning "resize window".<ref name="Avis_2001_RISCOS"/> At 0x84 is a 'bubble-writing' X, meaning "close window".<ref name="Avis_2001_RISCOS"/> At 0x87 is an unusual character that is a [[subscript]] 8 followed by a [[superscript]] 7.<ref name="Avis_2001_RISCOS"/> It is not proposed for [[Unicode]].<ref>{{Citation|title=L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS|url=https://www.unicode.org/L2/L2019/19025-terminals-prop.pdf|section=7. Characters not proposed|date=2019-01-04}}</ref>
The following table shows the RISC OS character set. Each character is shown with a potential [[Unicode]] equivalent
{|{{chset-table-header1|RISC OS character set<ref name="Avis_2001_RISCOS"/><ref name="ReadMe">{{Citation|title=L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS|chapter-url=https://www.unicode.org/L2/L2019/19025-terminals-prop.pdf|chapter=ReadMe.txt|date=2019-01-04}}</ref><ref>{{Citation|title=L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS|chapter-url=https://www.unicode.org/L2/L2019/19025-terminals-prop.pdf|chapter=RISCOSV.TXT|date=2019-01-04}}</ref><ref>{{Citation|title=L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS|chapter-url=https://www.unicode.org/L2/L2019/19025-terminals-prop.pdf|chapter=RISCOSI.TXT|date=2019-01-04}}</ref>}}
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|{{chset-cell1|U+00FD LATIN SMALL LETTER Y WITH ACUTE|[[ý]]}}
|{{chset-cell1|U+00FE LATIN SMALL LETTER THORN|[[Thorn (letter)|þ]]}}
|{{chset-cell1|U+00FF LATIN SMALL LETTER Y WITH DIAERESIS|[[
|}
{{legend|#FFD|Differences from [[ISO/IEC 8859-1]]}}
==Code page layout (Electronic Font Foundry 1.1)==
The Homerton font, a clone of [[Helvetica]], does not have these characters. [[The Electronic Font Foundry|EFF]], a third-party supplier of RISC OS outline fonts, has a different, but similar character set. This RISC OS Latin-1 character set was used by Electronic Font Foundry.
{|{{chset-table-header1|RISC OS EFF character set
|-
|{{chset-left1|0x}}
Line 462 ⟶ 463:
|{{chset-cell1|U+2044 FRACTION SLASH|[[Slash (punctuation)|⁄]]|style=background:#FFD}}
|{{chset-cell1|U+0192 LATIN SMALL LETTER F WITH HOOK|[[ƒ]]|style=background:#FFD}}
|{{chset-cell1|U+2030 PER MILLE SIGN|[[Permille|‰]]
|{{chset-cell1|U+2022 BULLET|[[Bullet (typography)|•]]
|-
|{{chset-left1|9x}}
|{{chset-cell1|U+2018 LEFT SINGLE QUOTATION MARK|[[Curved quotes|‘]]
|{{chset-cell1|U+2019 RIGHT SINGLE QUOTATION MARK|[[Curved quotes|’]]
|{{chset-cell1|U+2039 SINGLE LEFT-POINTING ANGLE QUOTATION MARK|[[Quotation mark|‹]]
|{{chset-cell1|U+203A SINGLE RIGHT-POINTING ANGLE QUOTATION MARK|[[Quotation mark|›]]
|{{chset-cell1|U+201C LEFT DOUBLE QUOTATION MARK|[[Curved quotes|“]]
|{{chset-cell1|U+201D RIGHT DOUBLE QUOTATION MARK|[[Curved quotes|”]]
|{{chset-cell1|U+201E DOUBLE LOW-9 QUOTATION MARK|[[Curved quotes|„]]
|{{chset-cell1|U+2013 EN DASH|[[Dash (punctuation)|–]]
|{{chset-cell1|U+2014 EM DASH|[[Dash (punctuation)|—]]
|{{chset-cell1|U+2212 MINUS SIGN|[[Plus and minus signs|−]]
|{{chset-cell1|U+0152 LATIN CAPITAL LIGATURE OE|[[Œ]]
|{{chset-cell1|U+0153 LATIN SMALL LIGATURE OE|[[œ]]
|{{chset-cell1|U+2020 DAGGER|[[Dagger (typography)|†]]
|{{chset-cell1|U+2021 DOUBLE DAGGER|[[Double dagger (typography)|‡]]
|{{chset-cell1|U+FB01 LATIN SMALL LIGATURE FI|[[Typographic ligature#Stylistic ligatures|fi]]
|{{chset-cell1|U+FB02 LATIN SMALL LIGATURE FL|[[Typographic ligature#Stylistic ligatures|fl]]
|-
|{{chset-left1|Ax}}
Line 589 ⟶ 590:
|{{chset-cell1|U+00FD LATIN SMALL LETTER Y WITH ACUTE|[[ý]]}}
|{{chset-cell1|U+00FE LATIN SMALL LETTER THORN|[[Thorn (letter)|þ]]}}
|{{chset-cell1|U+00FF LATIN SMALL LETTER Y WITH DIAERESIS|[[
|}
{{legend|#FFD|Differences from RISC OS}}
== Code page layout (TRC) ==
Line 1,178 ⟶ 884:
|{{chset-cell1|U+00FD LATIN SMALL LETTER Y WITH ACUTE|[[ý]]}}
|{{chset-cell1|U+00FE LATIN SMALL LETTER THORN|[[Thorn (letter)|þ]]}}
|{{chset-cell1|U+00FF LATIN SMALL LETTER Y WITH DIAERESIS|[[
|}
Line 1,187 ⟶ 893:
==Further reading==
*{{cite book |title=Technical Support: Programmer's Reference Manual |publisher=[[3QD Developments Ltd]] |date=2015-11-03 |chapter=Table D: Character sets |url=http://www.riscos.com/support/developers/prm/charsets.html |access-date=2017-02-22
*{{cite book |title=RISC OS 3.7 User Guide |chapter=Appendix H: Character sets |publisher=[[3QD Developments Ltd]] |orig-year=1997-01-20 |date=2015-11-03 |url=http://www.riscos.com/support/users/userguide3/book3b/book3_24.html |access-date=2017-02-22
{{Character encoding}}
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