Wow, I’ve never even heard of those architectures.
In the end, it seems that while the eight architectures are extremely different, they all suffered the same fate: There was one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem, which was more costly than licensing newer off-the-shelf CPU cores from a third party (typically ARM, MIPS, or RISC-V).
One of the selling points of the companies selling RTOS’s and embedded compilers has always been support for many odd architectures. A good chunk of it was legacy systems but plenty of new customers, too, for cost-effectiveness of SOC features. Probably some good sales people, too, managing those new accounts. ;) I’ve wondered how long they’ll last with ARM improving so much on costs and watts.
Wow, I’ve never even heard of those architectures.
One of the selling points of the companies selling RTOS’s and embedded compilers has always been support for many odd architectures. A good chunk of it was legacy systems but plenty of new customers, too, for cost-effectiveness of SOC features. Probably some good sales people, too, managing those new accounts. ;) I’ve wondered how long they’ll last with ARM improving so much on costs and watts.