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Altera_Forum's avatar
Altera_Forum
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15 years ago

Devide in VHLD

I want to implement this function : A<= B/x"A", when I compile, the Quartus put a notice: "/" used but didn't declare. When I try with "*" (multiply) or "+" (add), it is ok. I don't know this er...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

something like this...

-- A_in/B_in = R (& rem remainder)

-- R, rem initialised to zero

-- A = abs(A_in), B = abs(B_in) 


clked process...
rem <= A - B * R;
if rem >= B then
    R <= R + 1;
else
    result_out <= R; -- also decide sign here
    remainder_out <= rem;
    done <= '1';
end if;
if B = 0 then
    alarm <= '1';
end if;