Acorn C/C++

Acorn C/C++
Original authorsCodemist, Acorn Computers
DeveloperRISC OS Open
Initial release1988 (1988)
Stable release
32 / October 25, 2025 (2025-10-25)
Written inC and Assembly language
Operating systemRISC OS
PlatformARM architecture
LicenceProprietary commercial software

Acorn C/C++ is a set of programming tools for use under the RISC OS operating system. The tools use the Norcroft compiler suite and were authored by Codemist and Acorn Computers. The tools provide some facilities offered by a fully integrated development environment.

Acorn included a copy of the Norcroft compiler targeted at the ARM architecture for RISC OS in the following development software.

  • Acornsoft ANSI C – 1988
  • Acornsoft ANSI C (Release 2)
  • Acorn ANSI C (Release 3) – 1989
  • Acorn Desktop C (Release 4)
  • Acorn C/C++ (Release 5) – 1995