Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

'real' bit-accuracy, and bypassing 'integer' to make 'signed/unsigned' constant value

Greetings All: I am currently working on some DSP filtering. I create constant values for the coefficients required based on the generic values. For example... calc_coef := to_signe...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Have a look at the float_pkg (that is part of the VHDL 2008 spec). I wouldnt try using any of the float types for actual logic, but for constant calculation it should work and bypass the integer. You can get a '93 compatible version (that should work with quartus) here:

http://www.vhdl.org/fphdl/