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

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] app-emulation/bochs-3.0::gentoo  USE="X ncurses readline smp x86-64 -3dnow -avx -debugger -doc -gdb -sdl -vnc" 5793 KiB

Total: 1 package (1 new), Size of downloads: 5793 KiB