#HackerShoutOut to @FioraAeterna for teaching me that PPC is just as crazy or worse than x86
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Replying to @McGrewSecurity
@McGrewSecurity@FioraAeterna ARMv7 is also a giant mess! I dunno, maybe that's inevitable as ISAs evolve.1 reply 0 retweets 0 likes -
Replying to @danluu
@danluu@McGrewSecurity@FioraAeterna ARMv7 "proper" (thumb2 without the legacy bits) is actually pretty damn elegant.2 replies 0 retweets 0 likes -
Replying to @stephentyrone
@stephentyrone@McGrewSecurity@FioraAeterna Maybe to program? But the implementation of the decode logic is horrific, worse than x86.2 replies 0 retweets 0 likes -
Replying to @danluu
@danluu@McGrewSecurity@FioraAeterna "My critical path speed/efficiency is bound by decode!" -- No one in the past 15 years.2 replies 0 retweets 0 likes -
Replying to @stephentyrone
@stephentyrone@McGrewSecurity@FioraAeterna I've implemented both for real chips. Be sarcastic all you want, but it takes more resources.1 reply 0 retweets 0 likes -
Replying to @danluu
@danluu@McGrewSecurity@FioraAeterna Never said that it doesn't. But modern ARM ISA is, from a programmer's perspective, lovely.1 reply 0 retweets 0 likes -
Replying to @stephentyrone
@stephentyrone@McGrewSecurity@FioraAeterna Sure, and it's a horrible non-orthogonal series of hacks from an implementation standpoint.1 reply 0 retweets 0 likes -
Replying to @danluu
@danluu@McGrewSecurity@FioraAeterna You can't both say x86 is nicer *and* complain about non-orthogonality.1 reply 0 retweets 0 likes -
Replying to @stephentyrone
@danluu@McGrewSecurity@FioraAeterna x86 has a reasonably regular encoding layout, but the abstract ISA is nearly maximally non-orthogonal.1 reply 0 retweets 0 likes
@stephentyrone @McGrewSecurity @FioraAeterna Ok, but I'm talking about the decoding layout!
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