diff --git a/rtl/cpu/decode.sv b/rtl/cpu/decode.sv
index 5c37cf1..f7927d9 100644
--- a/rtl/cpu/decode.sv
+++ b/rtl/cpu/decode.sv
@@ -47,8 +47,8 @@ module decode (
 
     assign is_alu_a_n = (dec_x == 3'h2);
 
-    assign need_instr1_o = is_ld_sp_nnnn;
-    assign need_instr2_o = is_ld_sp_nnnn;
+    assign need_instr1_o = is_ld_sp_nnnn | is_ld_rr_nnnn;
+    assign need_instr2_o = is_ld_sp_nnnn | is_ld_rr_nnnn;
 
     assign undef_o = ~(is_ld_sp_nnnn | is_ld_rr_nnnn | is_alu_a_n);