These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.52 s (backtrack: 0/20).

[ebuild     U  ] dev-lang/nasm-3.02::gentoo [3.01::gentoo] USE="-doc" 1496 KiB

Total: 1 package (1 upgrade), Size of downloads: 1496 KiB