Convert combinatorial circuit to LUT/ROM?

[mengstr]

Is there any quick and easy way to take a combinatorial circuit (with input and output components) and make that into a LUT or a ROM? Just doing a "Analysis" followed by a "Create circuit with LUTs" dosen't make it into a single LUT and also adds simple gates to the result.

[hneemann]

It is possible to export a truth table to a hex file and then load it into a ROM or a LUT.

[mengstr]

Ohhh... That's simple ;-) I will give it a try and see if I can speed up the 8080-CPU design I have a bit.

Currently I have a failing sub-test in the exhaustive 8080exer diagnostics and and it have to plow through 140 million instructions to run that part of the test - taking about 20 hours , so I really need to speed I up a bit to ba able to find and fix the issue before I die of old age...