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First test not hanging anymore

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This commit is contained in:
Florian Zaruba 2017-06-02 19:09:53 +02:00
parent dad9c24d83
commit f57574e1eb
1 changed files with 6 additions and 3 deletions
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9
src/csr_buffer.sv
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@ -52,13 +52,16 @@ module csr_buffer (
// CSR instructions for this post buffer are single cycle
assign csr_valid_o = csr_valid_i;
assign csr_result_o = operand_a_i;
assign csr_ready_o = (csr_reg_q.valid && ~commit_i) ? 1'b0 : 1'b1;
assign csr_addr_o = csr_reg_q.csr_address;
// write logic
always_comb begin : write
csr_reg_n = csr_reg_q;
csr_reg_n = csr_reg_q;
// by default we are ready
csr_ready_o = 1'b1;
// if we have a valid uncomiited csr req or are just getting one WITHOUT a commit in, we are not ready
if ((csr_reg_q.valid || csr_valid_i) && ~commit_i)
csr_ready_o = 1'b0;
// if we got a valid from the scoreboard
// store the CSR address
if (csr_valid_i) begin