ASSERT/WARNING from package ieee.STD_LOGIC_ARITH, Built-in function result set to 'X' due to a ('U', 'X', 'W', 'Z', '-') in an operand / Built-in function CONV_INTEGER/TO_INTEGER argument too large

Description

You may see this warning when using Cadence simulation tools with VHDL files generated by SOPC Builder or Qsys. This warning does not have any effect on the simulation results and can be safely ignored.

Resolution

This warning message can be suppressed with the following Tcl command in Cadence simulation tools:

ncsim> set pack_assert_off {std_logic_arith}

Related Articles

• Warning: CONV_INTEGER: There is an 'U'|'X'|'W'|'Z'|'-' in an arithmetic operand, and it has been converted to 0.