On Mon, 23 Feb 2015, Leonid Yegoshin wrote: > The same is basically for transfer D$ --> I$ because in MIPS it is done via L2 > or memory. The original issue aside (I don't want to dive into it) this I believe is left to an implementer's discretion and there are MIPS implementations indeed that fill I$ directly from D$; IIRC Alchemy silicon and its descendants. Maciej