Merlin need Apple 2c or 2e-128

[kwccoin]

Sadly

[whscullin]

Check out https://www.scullinsteel.com/apple//e

[devorn]

Merlin 8/16 is for a 128k iie/or iic or GS... For the II/II+ era emulator, I recommend using the 48K or 64K version of Merlin that was intended for the II, II+
Such as https://mirrors.apple2.org.za/ftp.apple.asimov.net/images/programming/assembler/merlin/Merlin48%2664k.dsk

It is still a very capable assembler (no 65c02, but that should not be an issue with II+ anyway).

enter the 'VID 3' command in the Merlin Editor to invoke the Videx 80 column feature of IIjs emulator. I have experienced very satisfactory results even in 80 column mode. If accelerated, the iijs emulator with Merlin assembles faster than my real hardware!