![]() ![]() Recent developments have made RISC OS 5 available for the RiscPC (StrongARM/ARM610/ARM710) and A7000/A7000+ (ARM7500/ARM7500FE).Ī ROM upgrade is available to install on real hardware. However, some software is reliant on features specific to 26-bit mode and needs updating before it will work. Most software written in BBC BASIC has no compatibility issues, and in many cases software written in C merely requires a recompilation of the source code, where available. In October 2002 RISC OS 5 was released using only the 32-bit mode, required because 26-bit mode processors were no longer available – the last being the StrongARM used in the RiscPC. History, RISC OS 5 and software compatibilityĮarly ARM processors had a combined 26-bit program counter and status register, rather than separate 32-bit program counter and status registers.įor a time processors had both 26-bit and 32-bit modes, with the former being phased out by ARM. ![]()
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