diff options
Diffstat (limited to 'rtl')
| -rw-r--r-- | rtl/core/cycles.sv | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/rtl/core/cycles.sv b/rtl/core/cycles.sv index f503188..1524883 100644 --- a/rtl/core/cycles.sv +++ b/rtl/core/cycles.sv @@ -72,13 +72,13 @@ module core_cycles unique case(next_cycle) EXECUTE: begin branch <= 0; - writeback <= 0; update_flags <= 0; branch_target <= 30'bxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx; + final_writeback <= 0; if(dec_execute) begin branch <= dec_branch; - writeback <= dec_writeback & ~dec_alu.snd_shift_by_reg; + final_writeback <= dec_writeback; update_flags <= dec_update_flags; branch_target <= pc_visible + dec_branch_offset; @@ -98,10 +98,9 @@ module core_cycles ra <= dec_alu.rn; rb <= dec_alu.r_snd; r_shift <= dec_alu.r_shift; - - final_writeback <= dec_writeback; end + writeback <= final_writeback; pc <= fetch_insn_pc; end @@ -109,7 +108,7 @@ module core_cycles rb <= r_shift; data_snd_shift_by_reg <= 0; saved_base <= rd_value_b; - writeback <= final_writeback; + writeback <= 0; end endcase end |