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Fix wen delays in rf

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Olof Kindgren
2019-10-30 12:38:20 +01:00
parent a7d7d6475b
commit fc348f3a22
2 changed files with 11 additions and 6 deletions
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rtl/serv_state.v
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@@ -83,7 +83,7 @@ module serv_state
assign o_rf_rreq = i_ibus_ack | (stage_two_req & trap_pending);
//Prepare RF for writes when everything is ready to enter stage two
assign o_rf_wreq = ((i_shift_op & i_alu_sh_done & stage_two_pending) | (i_mem_op & i_dbus_ack) | (stage_two_req & (i_slt_op | i_branch_op))) & !trap_pending;
assign o_rf_wreq = ((i_shift_op & i_alu_sh_done & stage_two_pending) | (i_mem_op & i_dbus_ack) | (stage_two_req & (i_slt_op | i_branch_op))) & !trap_pending | i_rf_ready;
//Shift operations require bufreg to hold for one cycle between INIT and RUN before shifting
assign o_bufreg_hold = !cnt_en & (stage_two_req | ~i_shift_op);