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Altera_Forum
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12 years ago

Instantiating LPM Functions in VHDL: parallel adder

Hello guys... I'm trying instatniating some altera MF directly in my top design. From what I have understand I have two use two libraries: library altera_mf; use altera_mf.altera_mf.c...
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Altera_Forum
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12 years ago

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Thank you tricky ! for now I will go with the lpm_add_sub. The drawback is that I have to add a leading 0 to each input signal each time I use it.

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Why do you need to add leading 0s? you can specify the input widths from the generics. you would have the same problem with the parallel add.