Backport of PCSX2 PR. Only liberties here taken are the codepath where we diverge from upstream because doing it the upstream way would lose us valuable performance (as a tradeoff for Crash Twinsanity working correctly). The #else block in #if 1 (ExecuteBlock) should theoretically make Crash Twinsanity work correctly again, but has to be studied further.
Backport of PCSX2 PR. Only liberties here taken are the codepath where we diverge from upstream because doing it the upstream way would lose us valuable performance (as a tradeoff for Crash Twinsanity working correctly). The #else block in #if 1 (ExecuteBlock) should theoretically make Crash Twinsanity work correctly again, but has to be studied further.