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Remove redundant masking of meinext_irq field

This commit is contained in:
Luke Wren 2024-08-01 08:45:26 +01:00
parent fbd96363c8
commit 3c738d0356
1 changed files with 5 additions and 1 deletions
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6
hdl/hazard3_irq_ctrl.v
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@ -262,7 +262,11 @@ end else begin: encode_eirq_padded
end end
endgenerate endgenerate
assign meinext_irq = meinext_irq_unmasked & {W_IRQ_INDEX{!meinext_noirq}}; // It is unnecessary to mask meinext_irq based on meinext_noirq because:
// - The value of the CSR field is unimportant when noirq is set
// - There are no IRQ inputs to the priority selector when there
// are no IRQs, so result is already 0.
assign meinext_irq = meinext_irq_unmasked;
// ---------------------------------------------------------------------------- // ----------------------------------------------------------------------------
// CSR read // CSR read