fmax optimizations bundles

2021-09-06 01:36:57 -07:00
parent b52ace5142
commit 3e014c8285
8 changed files with 93 additions and 103 deletions
--- a/hw/rtl/VX_scoreboard.v
+++ b/hw/rtl/VX_scoreboard.v
@@ -14,7 +14,7 @@ module VX_scoreboard  #(

    reg [`NUM_REGS-1:0] deq_inuse_regs;

-    assign delay = |(deq_inuse_regs & ibuffer_if.used_regs);
+    assign delay = (| deq_inuse_regs);

    wire reserve_reg = ibuffer_if.valid && ibuffer_if.ready && ibuffer_if.wb;

@@ -36,7 +36,7 @@ module VX_scoreboard  #(
        end else begin
            inuse_regs <= inuse_regs_n;
        end
-        deq_inuse_regs <= inuse_regs_n[ibuffer_if.wid_n];
+        deq_inuse_regs <= inuse_regs_n[ibuffer_if.wid_n] & ibuffer_if.used_regs_n;
    end

    reg [31:0] deadlock_ctr;