A fast and easily customised operating system
for ARM devices
OS Codes
Programmer's Reference Manuals
» Tables
» OS Codes
OS Codes
| Value | Version |
|---|---|
| &A0 | Arthur 1.20 |
| &A1 | RISC OS 2.00 |
| &A2 | RISC OS 2.01 |
| &A3 | RISC OS 3.00 |
| &A4 | RISC OS 3.10/3.11 |
| &A5 | RISC OS 3.50 |
| &A6 | RISC OS 3.60 |
| &A7 | RISC OS 3.70 |
| &A8 | RISC OS 3.80/4.0x |
| &A9 | RISC OS 4 Select |
| &AA | RISC OS 5.0x |
Notes
The version of the Operating System is specified by the value returned in R1 when using OS_Byte 129 (read OS version).