Hi I'm trying to translate my Simulink Model in IP core for Vivado suite. First of all I'd like to know why the discrete shift register is not supported in HDL . Once I removed its there's thie error in last part of the HDL Workflow Advisor. "hdlcoder:pirudd:assertionFailed: Assertion failed: dom_pir_core/pirsignal.cpp:1229:size > 1 "