Hwpl Language

HWPL is a HardwareDescriptionLanguage, which has sometimes been compared with FortranLanguage.

As an example of a 4-bit counter:

MODULE MAIN {.CLK,.RST,.OUT},: BEGIN
  WIRE {.CLK,.RST},;
  REGISTER .OUT(#3);
  LATCH .RST SET .OUT TO -0;
  TRIGGER .CLK SET .OUT TO INC(.OUT) WHEN ~.RST;
END