In computer engineering, a hardware description language (HDL) is a specialized computer language used to describe the structure and behavior of electronic circuits, usually to design application-specific integrated circuits (ASICs) and to …

HDL syntax and the meaning of "a=a" HDL statements are used to describe how chip-parts are connected to each other, as well as to the input and output pins of the constructed chip. The syntax of these statements can be confusing, especially when pin names like in, out, a and b are used both by the chip-parts as well as by the constructed chip.

Syntax conventions: HDL is case-sensitive. By convention, HDL keywords are written in upper-case letters. Identifiers naming: Names of chips and pins may be any sequence of letters and digits not starting with a digit. By convention, chip and pin names start with a capital letter and a lower-case letter, respectively.

2023年4月17日 · Synthesis: HDLs can be used to synthesize digital circuits. Synthesis is a process of automatically generating circuits from HDL code. Timing Analysis: It provides designers to analyse the timing behaviour of digital circuits and ensure that the circuits meet the timing requirements.

Verilog HDL（简称 Verilog ）是一种硬件描述语言，用于数字电路的系统设计。 可对算法级、门级、开关级等多种抽象设计层次进行建模。 Verilog 继承了 C 语言的多种操作符和结构，与另一种硬件描述语言 VHDL 相比，语法不是很严格，代码更加简洁，更容易上手。

Verilog HDL allows integer numbers to be specified as : Sized or unsized numbers (Unsized size is 32 bits) In a radix of binary, octal, decimal, or hexadecimal; Radix and hex digits (a,b,c,d,e,f) are case insensitive; Spaces are allowed between the size, radix and value; Syntax: <size>'<radix><value>; Example of Integer Numbers

Verilog HDL 语言不仅定义了语法，而且对每个语法结构都定义了清晰的模拟、仿真语义。 使用这种语言编写的模型可以方便地使用 Verilog 仿真器进行验证。 Verilog HDL 从 C 语言中继承了多种操作符和结构。 Verilog HDL 提供了扩展的建模能力和扩展模块。 Verilog HDL 语言的核心子集非常易于学习和使用，这对大多数建模应用来说已经足够。 Verilog HDL 之所以成为和 VHDL 并驾齐驱的硬件描述语言，是因为它具有如下特点：

2006年4月7日 · Verilog is a hardware description language (HDL) that was standardized as IEEE Std 1364™-1995 and first revised as IEEE Std 1364-2001. This revision corrects and clarifies features ambiguously described in the 1995 and 2001 editions. It also resolves incompatibilities and inconsistencies of IEEE 1364-2001 with IEEE Std 1800™-2005.

This is a brief summary of the syntax and semantics of the Ver-ilog Hardware Description Language. The summary is not intended at being an exhaustive list of all the constructs and is not meant to be complete. This reference guide also lists con-structs that can be synthesized.

The syntax of an HDL defines the rules for writing valid code, while the semantics dictate the meaning of that code. Both VHDL and Verilog have their unique syntactical structures. For instance, VHDL uses a more verbose syntax that includes explicit type declarations, while Verilog employs a more concise syntax that is often easier for ...