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Altera_Forum's avatar
Altera_Forum
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14 years ago

Floating Point result to the decimal one

I would like to convert the Mantissa Result to the Decimal one with floating point included. The steps I do: 1). I'm interested to divide two decimal numbers . For example 10 and 3 ===> 10/...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Not that I have any clue why you are doing this but this might be easier:

1) 10/3 --> 3 and remainder 1 (use lpm_div)

2) 1(remainder from# 1)/3-->0.333333 (using altfp_convert followed by altfp_div)

3) 0.333333 * 10 (using altfp_mul)

4) 3.333333 convert to 3 to get the remainder with one decimal place (using altfp_convert to bring it back to a whole number)

So step 1 gets you the digits to the left of the decimal place and steps 2-4 get you the first digit after the decimal place. That said this is a lot of hardware that I would normally just have a CPU calculate for me using software libraries.