Signals represent physical wires connecting hardware components and update after a specific simulation delta delay. Variables are local to processes, update instantaneously, and are primarily used for computational intermediate steps. The Process Statement
The hardest mental shift for software developers learning HDL is grasping concurrency. In a computer program, lines of code execute one after another. In a digital circuit, millions of gates operate simultaneously. vhdl primer j bhasker pdf
He provides the "three-process method" (next state, output, state register) and the "two-process method," showing you exactly how synthesis tools interpret the code. state register) and the "two-process method
Describes the circuit's functionality using sequential statements inside a process block. It resembles high-level software programming, using constructs like if-then-else , case , and loops. using constructs like if-then-else
