diff --git a/saturn_bus.v b/saturn_bus.v
index ef70996..57f8e08 100644
--- a/saturn_bus.v
+++ b/saturn_bus.v
@@ -202,7 +202,7 @@ always @(posedge i_clk) begin
     end 
 
 `ifdef SIM
-    if (cycle_ctr == 148) begin
+    if (cycle_ctr == 202) begin
         bus_halt <= 1'b1;
         $display("BUS      %0d: [%d] enough cycles for now", phase, cycle_ctr);
     end
diff --git a/saturn_regs_pc_rstk.v b/saturn_regs_pc_rstk.v
index dd91074..8a6919b 100644
--- a/saturn_regs_pc_rstk.v
+++ b/saturn_regs_pc_rstk.v
@@ -219,9 +219,9 @@ always @(posedge i_clk) begin
                 // o_reload_pc <= 1'b1;
                 reg_PC           <= jump_relative ? jump_next_offset + jump_base : jump_next_offset;
                 if (i_push_pc) begin
-                    $write(" ( push %5h => RSTK[%0d] )", reg_PC, reg_rstk_ptr + 3'd1);
-                    reg_RSTK[(reg_rstk_ptr + 3'o1)&3'o7] <= reg_PC;
-                    reg_rstk_ptr <= reg_rstk_ptr + 3'd1;
+                    $write(" ( push %5h => RSTK[%0d] )", reg_PC, rstk_ptr_to_push_at);
+                    reg_RSTK[rstk_ptr_to_push_at] <= reg_PC;
+                    reg_rstk_ptr <= rstk_ptr_to_push_at;
                 end
                 $write("\n");
             end