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08-19-2004, 11:32 AM
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#1 |
Exponents in VHDL?
How do we do implement the exponent function "6" in VHDL, i.e. as in 2^3=8.
cheers Kwaj |
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08-19-2004, 12:03 PM
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#2 |
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Posts: n/a
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Re: Exponents in VHDL?
On Thu, 19 Aug 2004 20:32:55 +1000, "Kwaj"
<> wrote: >How do we do implement the exponent function "6" in VHDL, i.e. as in 2^3=8. I assume you missed the shift key and actually meant "^" instead of "6". The VHDL operator for exponentiation is **, e.g. x**y Many other languages use the same symbol, e.g. Verilog, Fortran, etc. All simulators will support it. Synthesisers will probably support it for any values of x and y if x and y are both constant, but probably not support it if x isn't a constant. If x is a constant and also a power of 2 (e.g. 2 or 4, etc.) then most synthesisers will support variable y. Regards, Allan. Allan Herriman |
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08-20-2004, 05:52 AM
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#3 |
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Posts: n/a
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Re: Exponents in VHDL?
Hi,
U can implement the same by just pressing the * key 2 times ie. 2**3 I think it is helpfull 2 u . Regards anupam |
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