VCS: 'always @(go) $save(name)' with 'reg go = 0' fires at time 0 -> '[VCS_SAVE_RESTORE] Failed to rename '' to '''

A save-helper top like module saver; reg [8*1024-1:0] name; reg go = 0; always @(go) $save(name); endmodule makes VCS W-2024.09 print Error: [VCS_SAVE_RESTORE] Failed to rename '' to '': No such file or directory. at startup, in plain, -ucli and -ucli2Proc runs. The variable initializer wakes the always block at time 0, so $save runs with an empty name. Designs with no $save, or with a plain initial #50 $save("x"), don't print it. Fix: always @(go) if (name != 0) $save(name);. Saves through the guarded top still restore exactly with simv -r. Also: UCLI has a documented memory loader (help memory): memory -read <nid> -file f [-radix r] [-start a] [-end a] and memory -read <nid> -fill 0|1|x|z.