retn

realizing  exu stream  flowSkinny block  transfer phase   operation  

native on: all

Returns values and control to the caller.

The Mill architecture supports multiple return values not only on operations but for all functions, as many as there are belt positions. Still most will only have one or none at all, because that is what languages were and are designed for.

Return not only returns from the most recent call operation and ends a frame, but also from the most recent inner operation and exits a loop. This depends on whether it was a call or an inner that has been executed most recently. The Spiller keeps track of that.

related operations: call, inner, retntr, retnfl

---

retn()

operands: like Inv :

alternate encoding: skinny

---

retn(ops vs) → ops r0 ...

operands: like Inv :

encoding: retn(off vs, count c) , retn(off vs, count c, lit vs) , retn(off vs, count c, lit vs, lit vs) , retn(off vs, count c, lit vs, lit vs, lit vs)

Core	In Slots	Latencies
Tin	F0	1
Copper	F0	1
Silver	F0 F1 F2	1
Gold	F0	1

---

retn(op Another) → op r0

operands: like Inv :

alternate encoding: skinny

Instruction Set, alphabetical, Instruction Set by Category, Instruction Set, sortable, filterable