diff options
Diffstat (limited to 'rtl/core/control/stall.sv')
| -rw-r--r-- | rtl/core/control/stall.sv | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/rtl/core/control/stall.sv b/rtl/core/control/stall.sv index 6d2b4e2..c2a6ddd 100644 --- a/rtl/core/control/stall.sv +++ b/rtl/core/control/stall.sv @@ -4,6 +4,7 @@ module core_control_stall ( input logic clk, rst_n, + halt, input insn_decode dec, @@ -14,7 +15,8 @@ module core_control_stall writeback, input reg_num final_rd, - output logic stall, + output logic halted, + stall, bubble, next_bubble ); @@ -22,7 +24,8 @@ module core_control_stall logic pc_rd_hazard, pc_wr_hazard, rn_pc_hazard, snd_pc_hazard, flags_hazard, flags_dependency, updating_flags; - assign stall = next_cycle != ISSUE || next_bubble; + assign stall = next_cycle != ISSUE || next_bubble || halt; + assign halted = halt && !next_bubble; assign next_bubble = pc_rd_hazard || pc_wr_hazard || flags_hazard; //FIXME: pc_rd_hazard no deberÃa definirse sin final_writeback? |