A86 was what I used, in the DOS 3.3 days. Before that it was a case of writing code on graph paper, looking up the opcodes in the manual, and assembling by han

A86 was what I used, in the DOS 3.3 days. Before that it was a case of writing code on graph paper, looking up the opcodes in the manual, and assembling by hand. Needless to say that writing programs was slow and difficult. I think I jumped straight from paper -> A86, without using debug.com. Not sure why.