AR: Clarify triggers and multiple state changes#899
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Incorporate more feedback from AR. Moved this into a separate Sdtrig section, since the discussion could also apply to instructions that cause triggers beside memory access ones. (E.g. an instruction that combines memory accesses with a trigger, and itrigger.) Follow up to #883.
pdonahue-ventana
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Oct 4, 2023
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OK. And this is broader than just writing to memory. It would also apply to an instruction that loads multiple registers. Like ARM's AArch32 can load any subset of GPRs with a single instruction, but you have to make sure that if one of the destinations is also the source register (the address) that you don't update that register if you get a page fault halfway through. That allows you to still have the original address when you reexecute.
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Incorporate more feedback from AR. Moved this into a separate Sdtrig section, since the discussion could also apply to instructions that cause triggers beside memory access ones. (E.g. an instruction that combines memory accesses with a trigger, and itrigger.)
Follow up to #883.