Comments on: DisasMSIL and CFF Explorer https://ntcore.com/disasmsil-and-cff-explorer/ Wed, 07 May 2008 23:47:00 +0000 hourly 1 https://wordpress.org/?v=6.9 By: Ntoskrnl https://ntcore.com/disasmsil-and-cff-explorer/#comment-106 Wed, 07 May 2008 23:47:00 +0000 http://rcecafe.net/?p=32#comment-106 Michael, at some point during my life I too had that ISO document (that’s how I added the opcodes back then), but now, after 2 years, I’m unable to find it. Every link on the internet points at the doc where these opcodes are missing. I spent like an hour looking for the up-to-date version. I’m pretty embaressed to say that I couldn’t find it.

You’re right, I just checked in the Rotor source code and these opcodes are present as annotation opcodes. I really appreciate your contribution. I’ll add them in a couple of days. Even if they’re not used any longer, one never knows..

Thanks again.

]]> By: Michael https://ntcore.com/disasmsil-and-cff-explorer/#comment-105 Wed, 07 May 2008 22:43:00 +0000 http://rcecafe.net/?p=32#comment-105 Daniel, actually ldelem, stelem and unbox.any are defined in the ISO/IEC 23271:2006 (E) version of the standard. I have the 5 partition in one PDF version of the standard and the three opcodes are defined there.

There are however some opcodes, which are not defined officially. These are primarily all Annotation opcodes, if you google them you’ll find them. I’ve included their definitions in my SharpOS JIT compiler code for completeness:

ann.call = 0x0C7
ann.catch = 0x0C8
ann.dead = 0x0C9
ann.hoisted = 0x0CA
ann.hoistedcall = 0x0CB
ann.lab = 0x0CC
ann.def = 0x0CD
ann.ref.s = 0x0CE
ann.phi = 0x0CF

These were defined in beta 1 of .NET and have since either disappeared or did not make it into the standard.

I suppose they are still used somehow and somewhere.

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