The AcornRISC 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".[1] At 0x84 is a 'bubble-writing' X, meaning "close window".[1] At 0x87 is an unusual character that is a subscript 8 followed by a superscript 7.[1] It is not proposed for Unicode.[2] At 0x88, 0x89, 0x8A, and 0x8B are left, right, up, and down bubble arrows for window scrollbars.[1]
The following table shows the RISC OS character set. Each character is shown with a potential Unicode equivalent in the tooltip.
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. 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.
Differences from RISC OS
Code page layout (TRC)
Differences from ISO/IEC 8859-1
References
12345Avis, Ed (2001-03-08). "Acorn RISC OS". Archived from the original on 2020-08-06. Retrieved 2020-03-30.
↑"7. Characters not proposed", L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS(PDF), 2019-01-04
↑"ReadMe.txt"(PDF), L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS, 2019-01-04
↑"RISCOSV.TXT"(PDF), L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS, 2019-01-04
↑"RISCOSI.TXT"(PDF), L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS, 2019-01-04
↑"RISCEFF.TXT"(PDF), L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS, 2019-01-04
