fixed instr/cycle perf counter

2020-11-12 11:41:25 -08:00
parent fceb561cbd
commit 2e0f51af80
8 changed files with 81 additions and 80 deletions
--- a/hw/rtl/VX_writeback.v
+++ b/hw/rtl/VX_writeback.v
@@ -72,8 +72,8 @@ module VX_writeback #(
                        fpu_valid ? fpu_commit_if.data :                                                               
                                    0;

-    always @(*) assert(writeback_if.ready);
    wire stall =~writeback_if.ready && writeback_if.valid;
+    always @(*) assert(writeback_if.ready); // the writeback currently has no backpressure from issue stage
    
    VX_generic_register #(
        .N(1 + `NW_BITS + 32 + `NUM_THREADS + `NR_BITS + (`NUM_THREADS * 32))