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24 bit floating point

 
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Andrew-miksys



Joined: 11 Sep 2007
Posts: 7

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24 bit floating point
PostPosted: Thu Oct 11, 2007 8:14 am     Reply with quote
I am moving some ASM program into C and I need to compress generated code.
Original program use 24 bit floating point aritmetic function and that was absolutely enough.
Is possible to change the precision in compilator?
I wouldn't write this function from the beginnig by myself Confused
Any suggestion/ideas???
Ttelmah
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PostPosted: Thu Oct 11, 2007 8:30 am     Reply with quote
I'm afraid you would have to write your own.
The CCS compiler only supports 32bit floats.
Microchip AN660, has a complete set of 24bit FP routines available. If you search through this forum, you will find a post by me, where I posted some crude 64bit integer routines, which shows how the data types can be handled.

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Andrew-miksys



Joined: 11 Sep 2007
Posts: 7

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PostPosted: Thu Oct 11, 2007 1:20 pm     Reply with quote
I thing will be nice to have a choice 24 or 32bit fl.p aritmetic during compilation. But now... I have to do it Sad
Have anybody seen source of 24bit aritmetic function?
Ttelmah
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PostPosted: Thu Oct 11, 2007 3:13 pm     Reply with quote
As I said, AN660, has complete routines.

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