diff options
Diffstat (limited to 'rtl/core/control/writeback.sv')
| -rw-r--r-- | rtl/core/control/writeback.sv | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/rtl/core/control/writeback.sv b/rtl/core/control/writeback.sv index a7738fb..027a7d7 100644 --- a/rtl/core/control/writeback.sv +++ b/rtl/core/control/writeback.sv @@ -10,9 +10,11 @@ module core_control_writeback input word q_alu, ldst_read, input logic mem_ready, + mem_ex_lock, mem_write, input word mul_q_hi, mul_q_lo, + strex_ok, input ctrl_cycle cycle, next_cycle, @@ -26,6 +28,7 @@ module core_control_writeback input logic issue, pop_valid, ldst_next, + ldst_reject, output reg_num rd, final_rd, @@ -62,7 +65,7 @@ module core_control_writeback writeback = 0; if(cycle.transfer) - wr_value = ldst_read; + wr_value = (mem_ex_lock && mem_write) ? strex_ok : ldst_read; else if(cycle.base_writeback) wr_value = saved_base; else if(cycle.mul || cycle.mul_hi_wb) |