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Is there fixed-point math library

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I reading the book "Building a 3d Game Engine in C++". In this book, introducing fixed-point math algorithms. But, this book deal with 386 or 486 cpu without FPU. So, I want to know that fixed-point is effective or not on pentium cpu or later cpu. And, On this book, using auther''s private library. Is there general library about fixed-point math. Pardom me about my poor english...

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It is not common anymore to use a fixed-point library nowadays. The floating point unit of PC''s and consoles are fast enough. On the other hand it might be useful on Handhelds ... but I have no glue if they support floating points.

- Wolf

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quote:
Original post by Leopold
It is not common anymore to use a fixed-point library nowadays. The floating point unit of PC''s and consoles are fast enough. On the other hand it might be useful on Handhelds ... but I have no glue if they support floating points.

- Wolf

Indeed the most common handheld, the Nintendo® GBA doesn''t have a FPU so fixed-point math comes in very handy there.

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