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minor update

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This commit is contained in:
Blaise Tine
2021-09-06 23:44:31 -07:00
parent af1cecae07
commit d42baf34ff
4 changed files with 35 additions and 34 deletions
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19
hw/rtl/libs/VX_fair_arbiter.v
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@@ -25,30 +25,31 @@ module VX_fair_arbiter #(
end else begin
reg [NUM_REQS-1:0] remaining;
reg [NUM_REQS-1:0] buffer;
reg use_buffer;
wire [NUM_REQS-1:0] requests_use = use_buffer ? remaining : requests;
wire [NUM_REQS-1:0] remaining_next = requests_use & ~grant_onehot;
wire [NUM_REQS-1:0] requests_qual = use_buffer ? buffer : requests;
wire [NUM_REQS-1:0] buffer_n = requests_qual & ~grant_onehot;
always @(posedge clk) begin
if (reset) begin
remaining <= 0;
use_buffer <= 0;
end else if (!LOCK_ENABLE || enable) begin
remaining <= remaining_next;
use_buffer <= (remaining_next != 0);
use_buffer <= (buffer_n != 0);
end
if (!LOCK_ENABLE || enable) begin
buffer <= buffer_n;
end
end
VX_fixed_arbiter #(
.NUM_REQS(NUM_REQS),
.LOCK_ENABLE(LOCK_ENABLE)
.NUM_REQS (NUM_REQS),
.LOCK_ENABLE (LOCK_ENABLE)
) fixed_arbiter (
.clk (clk),
.reset (reset),
.enable (enable),
.requests (requests_use),
.requests (requests_qual),
.grant_index (grant_index),
.grant_onehot (grant_onehot),
.grant_valid (grant_valid)

2
hw/rtl/libs/VX_index_buffer.v
View File

@@ -31,7 +31,7 @@ module VX_index_buffer #(
VX_lzc #(
.N (SIZE)
) free_slots_encoder (
) free_slots_sel (
.in_i (free_slots_n),
.cnt_o (free_index),
.valid_o (free_valid)