RAW and WAW hazard avoidance

[ysapir]

An instruction should execute as soon as it can. I don't see how stalling the AND for having dual issue with the FADD (or a similar combination) can help in accelerating any program? In this case there will be no dual issue.

[Gravis]

@ysapir
can you confirm if the proposed method is in fact who it's done on the epiphany chip? i really would like to get this right for the emulator.

[timpart]

It seems from Notzed's experiments that a floating point instruction can delay a IALU instruction by dual issuing with it then discovering that the FP instruction's registers aren't ready. See , the part after the "Update" .

Tim

[notzed]