Dear All, In our calculations we have a sfilxed value: SIGNAL Bin : sfixed(9 DOWNTO -9); -- ( = 2.7 ) Now I want to have the fractional part as integer (=7) in a signal and the "integer" part (=2) in another signal. How can I do this? Is there an example? I'm not succeeding even when using the round_style or overflow_style options. With kind regards,

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> Now I want to have the fractional part as integer (=7) in a signal
Thats not the way the type sfixed ist working!!
The bits are weighted:
```

1 | sfixed(9 DOWNTO -9) : |

2 | 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 |

3 | 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 |

And now 2.7 is

1 | 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 |

2 | 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 |

3 | = |

4 | 0 0 0 0 0 0 0 0 1 0 1 0 1 1 0 0 1 1 0 |

So you can easily see: the first 10 bits are simply: 0000000010 = 2 But the fraction is far far away from anything looking like 7: 101100110 In fact its not .7 but .69916875, the nearest representable number :-o

Dear Na sowas, Thank you very much for your quick reaction. That's just my problem. I need the 7 (or 69916875) in a signal but I don't know how to extract it from the sfixed. I hope you can tell me how.

Lets get a step further: Given the number 2.7 you want as result the numbers 2 and 7? What do you want for 2.76? Or for 2.765 or 2.7654?

> Given the number 2.7 you want as result the numbers 2 and 7? Yes, that's right. > What do you want for 2.76? Or for 2.765 or 2.7654? A fixed number of digits lets say 3 (rounded): for example in this case (skipping the signal "2"): 2.7 -> "700" 2.76 -> "760" 2.765 -> "765" 2.7654 -> "765"