From 6ee591fd7b7d27f59ed86116f844542c668547d2 Mon Sep 17 00:00:00 2001
From: dam1n19 <d.a.mapstone@soton.ac.uk>
Date: Tue, 10 Jan 2023 14:58:34 +0000
Subject: [PATCH] ATO2-24: Fixed further FIFO lint warnings
---
hdl/src/fifo_vr.sv | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/hdl/src/fifo_vr.sv b/hdl/src/fifo_vr.sv
index e02d47a..7e6c6b1 100644
--- a/hdl/src/fifo_vr.sv
+++ b/hdl/src/fifo_vr.sv
@@ -79,7 +79,7 @@ module fifo_vr #(
// Successful Handshake store data in FIFO and increment Write Pointer
fifo [write_ptr[PTR_W-2:0]] <= {data_in,data_in_last};
write_ptr <= write_ptr + 1;
- if ((ptr_dif + {2'b0,(1'b1 - data_out_shake)}) < DEPTH) begin
+ if ((ptr_dif + {{(PTR_W-1){1'b0}},(1'b1 - data_out_shake)}) < DEPTH) begin
// Still space in FIFO after latest write
// If theres a successful read on this clock cycle,
// there will be an additional space in the FIFO next clock cycle
@@ -96,7 +96,7 @@ module fifo_vr #(
data_in_ready <= 1'b1;
end
end else begin
- if ((ptr_dif - {2'b0, data_out_shake}) < DEPTH) begin
+ if ((ptr_dif - {{(PTR_W-1){1'b0}}, data_out_shake}) < DEPTH) begin
// If there is a successful read this clock cycle,
// there will be space for another piece of data in the FIFO
// (number of pieces of data in FIFO will have decremented by 1)
@@ -113,7 +113,7 @@ module fifo_vr #(
if (data_out_shake) begin
// Successful Handshake Increment Read Pointer
read_ptr <= read_ptr + 1;
- if (((ptr_dif - 1) + {2'b0,(data_in_shake - 1'b1)}) < DEPTH) begin
+ if (((ptr_dif - 1) + {{(PTR_W-1){1'b0}},(data_in_shake - 1'b1)}) < DEPTH) begin
// Still Data in FIFO after latest Read
// If there is a successful write this clock cycle,
// there will be one more piece of data in the FIFO
@@ -130,7 +130,7 @@ module fifo_vr #(
data_out_valid <= 1'b1;
end
end else begin
- if (((ptr_dif - 1) + {2'b0,data_in_shake}) < DEPTH) begin
+ if (((ptr_dif - 1) + {{(PTR_W-1){1'b0}},data_in_shake}) < DEPTH) begin
// If there is a successful write this clock cycle,
// there will be one more piece of data in the FIFO
// (number of pieces of data in FIFO will have incremented by 1)
--
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