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simple float and int arithmetic...

 
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valemike
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simple float and int arithmetic...
PostPosted: Thu Mar 25, 2004 11:45 am     Reply with quote
suppose i have:

Code:
int delta_y;
float slope;

...
delta_y = 0x4D; /* this is decimal 77 */
slope = (float) delta_y / 50.0;


Using MPLAB's IDE for debugging, I find that my slope ends up equaling:
-3.773486e-005 ????

I expect it to look more like 77/50 = 1.54

Can someone shed some light how to get my desired 1.54 answer? Perhaps i'm not even expressing it the correct way and that's why i'm getting an error.

-Mike
valemike
Guest
Found the Problem
PostPosted: Thu Mar 25, 2004 12:36 pm     Reply with quote
Looks like Microchip's MPLAB doesn't interpret correctly the way that CCS stores floats. I did a printf() instead and all is fine.
dilandau



Joined: 25 Aug 2010
Posts: 11

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PostPosted: Thu Mar 31, 2011 11:30 am     Reply with quote
Dont know if this is a very old topic but here you have the solution from CCS

http://www.ccsinfo.com/faq.php?page=mplab_float
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