What's an in memory representation of hardware configuration called
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I remember this from when I was a student, I'm sure my lecturer called it something like "state shadowing" (permutations of that name covered by the "shadow state" and "variable shadowing") - basically what I'm remembering is related to hardware programming where there's a time cost associated with querying the state of a connected hardware peripheral, so when setting the hardware state you also set a variable in-memory - that way whenever you need to know the hardware state you can just reference the variable. Does anyone know what this kind of pattern would be called? I'm looking for some inspiration on how to design something, so I'm just looking for any kind of related literature, but it's a bit hard to find anything when you don't know the name.
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I remember this from when I was a student, I'm sure my lecturer called it something like "state shadowing" (permutations of that name covered by the "shadow state" and "variable shadowing") - basically what I'm remembering is related to hardware programming where there's a time cost associated with querying the state of a connected hardware peripheral, so when setting the hardware state you also set a variable in-memory - that way whenever you need to know the hardware state you can just reference the variable. Does anyone know what this kind of pattern would be called? I'm looking for some inspiration on how to design something, so I'm just looking for any kind of related literature, but it's a bit hard to find anything when you don't know the name.
I would call it a cached result, but maybe some other term is in common usage among embedded system developers who work close to the hardware. Objects sometimes do the same thing to avoid calculating a result that clients frequently use.
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I remember this from when I was a student, I'm sure my lecturer called it something like "state shadowing" (permutations of that name covered by the "shadow state" and "variable shadowing") - basically what I'm remembering is related to hardware programming where there's a time cost associated with querying the state of a connected hardware peripheral, so when setting the hardware state you also set a variable in-memory - that way whenever you need to know the hardware state you can just reference the variable. Does anyone know what this kind of pattern would be called? I'm looking for some inspiration on how to design something, so I'm just looking for any kind of related literature, but it's a bit hard to find anything when you don't know the name.
