How can i make GNAT generate program listing?

Question

Make it look like tasm-generated listing)

Answer 1

According to the docs,

Any uppercase or multi-character switch that is not a gnatmake switch is passed to gcc (e.g. -O, -gnato, etc.)

, so you would probably do it the exact same way you'd do it with gcc.

I don't know the exact format you refer to, but -gnatl looks interesting.