3 ms·
Sounds like Midori/Singularity. Or like any of Per Brinch Hansen's OSes, written in concurrent dialects of Pascal and depending on the language-level constructs
by Joker_vD 4y ago
Sounds like Midori/Singularity. Or like any of Per Brinch Hansen's OSes, written in concurrent dialects of Pascal and depending on the language-level constructs for memory protection and process separation (they could and did run on machines without MMUs).
- Taniwha 4y agoThe old Burroughs systems (up to at least the B7700) didn't really have MMUs in the traditional sense - their descriptors only reserved 20 bits for (word addresses) so they were limited to ~6Mb of addressing - not a big deal when we had paid over a US$ million for 1.5Mb of B6700 core, no one could have afforded more - they paged segments (much as a 432 would have) and also supported segments chunked into 256 word chunks for large arrays (at the cost of an extra memory access per lookup).