I didnt know Doom was all integer ... quite a feat. In the general sense though the lack of floating point, as well as flat video addressing seriously hampered

I didnt know Doom was all integer ... quite a feat. In the general sense though the lack of floating point, as well as flat video addressing seriously hampered Amiga in the 3D ahem space. EDIT I just remebered there is definitely at least one routine I know of that performs calculations based on IEEE 754 - “fast inverse square” or something. That could be at the root [badum] of my confusion vis-a-vis Doom ...