1. Altera Hardware Description Language
Altera 公司的用于描述数字逻辑的硬件描述语言。类似VHDL和Verilog HDL，用于对数字逻辑电路进行建模。
2. Analog Hardware Description Language
模拟硬件描述语言。
参考书目：
Modeling with an Analog Hardware Description Language (The International Series in Engineering and Computer Science) (Hardcover)
by H. Alan Mantooth, Mike F. Fiegenbaum