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iximeow / yaxpeax-arm

arm decoders for the yaxpeax project
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Support for ARMv4 #7

Open omarandlorraine opened 2 years ago

omarandlorraine commented 2 years ago

From what I see, there's armv7::InstDecoder and armv8::InstDecoder already.

I'm interested in developing for the ARM7TDMI which is an ARMv4, so it would be great to have an armv4::InstDecoder in this crate. But I don't know enough about later ARMs to know if armv7::InstDecoder will do the trick for me.

iximeow commented 2 years ago

i haven't exhaustively checked but i'm pretty confident that for each of the execution modes, thumb/aarch32/aarch64, extensions are strictly supersets of whatever they've extended. so armv7::InstDecoder should decode instructions for v4 targets correctly (excepting a bug or two in thumb: https://github.com/iximeow/yaxpeax-arm/issues/3)