From 1ca30fb3de058b9498f6a6bbc646b79978ece846 Mon Sep 17 00:00:00 2001 From: Alejandro Soto Date: Mon, 17 Oct 2022 01:25:42 -0600 Subject: Break false dependency on r0 for MOV/MVN --- rtl/core/control/control.sv | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'rtl/core/control') diff --git a/rtl/core/control/control.sv b/rtl/core/control/control.sv index 653d896..1c20535 100644 --- a/rtl/core/control/control.sv +++ b/rtl/core/control/control.sv @@ -5,6 +5,7 @@ module core_control input logic clk, dec_execute, dec_conditional, + dec_uses_rn, dec_branch, dec_writeback, dec_update_flags, @@ -76,7 +77,7 @@ module core_control assign next_bubble = ((dec_update_flags || dec_conditional) && (final_update_flags || update_flags)) - || (final_writeback && (final_rd == dec_data.rn || final_rd == dec_snd.r)); + || (final_writeback && ((dec_uses_rn && final_rd == dec_data.rn) || final_rd == dec_snd.r)); core_control_ldst_pop ldst_pop ( -- cgit v1.2.3