Soft float was only available if your application was compiled with it, and dog slow in any case. Fixed point was still common: Take an int and pretend the fir

Soft float was only available if your application was compiled with it, and dog slow in any case. Fixed point was still common: Take an int and pretend the first X bits are after the point. You have to choose X wisely, so you have enough bits available both before and after the dot. This at a time when 16 bits was the common int size.