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programming • Re: How many implementations of OSWORD &42/43 (sideways RAM transfer/load/save) are there?

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For the record: the MOS 3.20 routines live in the associated DFS 2.24 ROM. Greg Cook has a nice disassembly of DFS 2.24: http://regregex.bbcmicro.net/dfs224.asm.txt

And for MOS 3.50, MOS 4.00, and MOS 5.xx, the routines are part of the OS: (with apologies that this disassembly is still rather bare in places)

OSWORD $42: https://github.com/tom-seddon/acorn_mos ... ls.s65#L33

OSWORD $43: https://github.com/tom-seddon/acorn_mos ... s.s65#L570

--Tom

Statistics: Posted by tom_seddon — Sat Sep 14, 2024 1:20 am



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