As a single pass compiler I remember how fast it was. Turbo Pascal would compile and stop on the first error. Simple. Other pascal compilers of the era would keep going trying to fix missing ; and often leading to error messages that were bizarre - especially to students.

I’d do my school assignments in turbo pascal and then upload and port to the Data General mini Pascal compiler. Was just 10000 times faster to do as long as I didn’t use anything PC specific I was gold