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23 lines
1.0 KiB
Markdown
23 lines
1.0 KiB
Markdown
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This is a WIP migration guide for porting downstream libraries after the
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what4/bv-sized change.
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* Constants (no Num instance): "0" because "BV.zero w"
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* All Data.Bits operations
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First pass: resolving Integer ~ BV.BV w mismatch
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* Basically, there's two scenarios -- one where you want to turn the Integer into a BV w, and one where you just want to convert.
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* asUnsignedBV x ==> BV.asUnsigned <$> asBV x
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* fromConcreteUnsignedBV x ==> BV.asUnsigned (fromConcreteBV x)
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* bvLit sym w x ==> bvLit sym w (BV.mkBV w x)
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* i <- [0..n] ==> i <- BV.enumFromToUnsigned (BV.zero w) (BV.mkBV w n)
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* minSigned ==> BV.minSigned
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* functions from parameterized-utils that return Integers ==> functions from bv-sized that return BVs
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* Num operators ==> BV operators
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* Bits operators ==> BV operators
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* shifting/masking ==> BV concat/select/trunc/zext/sext
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* bvLit sym w (intValue w) ==> bvLit sym w (BV.width w)
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Second pass: resolving "no Num instance"
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* 0 ==> BV.zero w
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* 1 ==> BV.one w
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* for anything else, you probably should use BV.mkBV w
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