Hi When looking at this I thought in terms of C and how it would code in assembly. I also considered how easy and quick it would be to do jmp instructions. On a slow Z80 it may make a difference on a superfast modern machine would the difference be noticeable?
Considering this Style B is faster and more efficient. It is a long time since I have done any assembler in C so please excuse my semi guesswork if I have got this wrong. John Eayrs On Sunday 07 June 2009 20:01:47 Hugo Mills wrote: > If you were writing a function with a fast path and a slow path, > which style would you use to write the function? > > > Style A: > > if can_use_fast_path: > return "fast path result" > # do slow stuff > return "slow path result" > > > Style B: > > result = "fast path result" > if !can_use_fast_path: > # do slow stuff > result = "slow path result" > return result > > > Assume that the fast path is a single expression, and the slow path > is at least tens of lines of code. Why would you pick one style over > the other? Would you use a different idiom in different languages? If > so, why? > > Discuss. :) > > Hugo. -- Please post to: Hampshire@mailman.lug.org.uk Web Interface: https://mailman.lug.org.uk/mailman/listinfo/hampshire LUG URL: http://www.hantslug.org.uk --------------------------------------------------------------
