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ras: Handle simultaneous push and pop

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This commit is contained in:
Florian Zaruba 2019-04-19 16:08:48 +02:00
parent 95e099ca6f
commit 13a9767dfe
1 changed files with 8 additions and 1 deletions
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9
src/frontend/ras.sv
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@ -47,10 +47,17 @@ module ras #(
stack_d[DEPTH-1].valid = 1'b0;
stack_d[DEPTH-1].ra = 'b0;
end
// leave everything untouched and just push the latest value to the
// top of the stack
if (pop_i && push_i) begin
stack_d = stack_q;
stack_d[0].ra = data_i;
stack_d[0].valid = 1'b1;
end
if (flush_i) begin
stack_d = '0;
end
end
end
always_ff @(posedge clk_i or negedge rst_ni) begin