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At the moment I just use this page to jot down unstructured bits and pieces. Notice, I am an absolute beginner and inexperienced with Verilog, so do not interpret anything on this page as gospel.

Wires vs. Registers

Wires need to be driven. They can be driven from a continuous assignment or from a register.

Assign vs. Always

Basically assign statements are used to connect different devices via nets. Always blocks are used to express behavior of those devices.

In general the 'assign' statements are used to assign values to nets. always blocks deal with assigning values to registers.

Miscellaneous Links