> an extra instruction in the final 386 architecture to facilitate garbage collection. Despite the tone problems of the post I'm replying to, I'm honestly curi

> an extra instruction in the final 386 architecture to facilitate garbage collection. Despite the tone problems of the post I'm replying to, I'm honestly curious about this: Is there such an opcode? I can't think of one, and I like to think I know things about x86 ISAs, despite all the dark corners that architecture has. Are they, somehow, confusing it with the iAPX 432, as unlikely as that sounds? Anyway, here's the claim in context: > (Interestingly, Symbolics at one time was working with Intel to build a development platform based on the 386, which led to the inclusion of an extra instruction in the final 386 architecture to facilitate garbage collection).