Hi. I found that in xschem if we use device expansion using square bracket (e.g., [7:0]) notation, it shows some problem with subckts (X). The problem is that the first device (e.g., [7]) in the netlist precedes with letter X (desired) but other devices (e.g., [6:0]) don't have X as initials. I have attached the photo of circuit and netlist. Please notice the difference between line number 5 and 6-12.

What version of Xschem are you using? I ran it on my end (with the latest source) and I'm seeing the letter X for device [6:0].

This was a fix done on Decemper 2020:

r1340 | stefan | 2020-12-02 17:33:41 +0100 (mer, 02 dic 2020) | 1 line

in case of vector instance names and spiceprefix attr set apply spiceprefix to all members, not only on first one

So a later version of xschem should fix the problem. If not please let me know.

Thanks @Stefan Schippers @Joanne Low for looking into the problem. I should recompile the latest release. It should solve the problem.