Description
This message appears when you try to use memory constructs in Verilog hardware description language (HDL). The Quartus II software versions 2.0 and below do not support memory constructs in Verilog HDL. As such, you should use Altera-provided functions when you need to implement RAM or ROM.
For more information on how to implement memory in Verilog HDL, please go to the Help menu in the Quartus II software and look in the index for "Implementing CAM, RAM & ROM." Use the the MegaWizard Plug-In Manager (Tools menu) to instantiate these megafunctions.
The Quartus II software version 2.1 does support memory constructs in Verilog HDL.