🐛 Fix fence bug
#58
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🐛 Fix fence bug
#58
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Instructions with side effects flush the unissued instructions from the controller. The accelerator dispatcher buffer is flushed when this happens and avoids accepting a new instruction, but was not preventing the actual issue during a flush cycle.
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Sure, here we are: openhwgroup#2490 |
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The controller flushes the pipeline and all the unissued instructions in the presence of instructions with side effects (e.g.,
fence).The accelerator dispatcher buffer is flushed when this happens and avoids accepting a new instruction, but it does not prevent the actual issuing from it during a flush cycle.
This fix avoids the issuing during a flush cycle.