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removed uneeded wb.accepted, covered by instruction_queue_empty

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Eric Matthews 2019-08-19 14:55:52 -07:00
parent fc0e5b9c24
commit 3ec01d6524
1 changed files with 2 additions and 15 deletions
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17
core/gc_unit.sv
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@ -151,7 +151,6 @@ module gc_unit(
//Write-back handshaking
logic processing;
logic wb_done;
logic [2:0] fn3;
logic [6:0] opcode;
@ -283,7 +282,7 @@ module gc_unit(
processing <= 0;
else if (gc_ex.new_request_dec)
processing <= 1;
else if (state == IDLE_STATE && instruction_queue_empty && (~wb_done | (wb_done & gc_wb.accepted )))
else if ((state == IDLE_STATE) && instruction_queue_empty)
processing <= 0;
end
@ -306,21 +305,9 @@ module gc_unit(
end
end
always_ff @(posedge clk) begin
if (rst) begin
wb_done <= 0;
end else if (gc_ex.new_request & gc_inputs.is_csr) begin
wb_done <= 1;
end else if (gc_wb.accepted) begin
wb_done <= 0;
end
end
////////////////////////////////////////////////////
//Assertions
always_ff @ (posedge clk) begin
assert (~gc_wb.accepted | (gc_wb.accepted & wb_done)) else $error("Spurious ack for CSR Unit");
end
////////////////////////////////////////////////////
endmodule