---
title: VLSI 4
---
# VLSI Computer-Aided Design for VLSI Design
NTNU VLSI 電腦輔助設計
##### [Back to Note Overview](https://reurl.cc/XXeYaE)
##### [Back to VLSI Computer-Aided Design for VLSI Design](https://hackmd.io/@NTNUCSIE112/VLSI110-1)
{%hackmd @sophie8909/pink_theme %}
###### tags: `VLSI` `110-1` `CSIE` `選修` `NTNU`
<!-- tag順序 [學校] [系 必選] or [學程 學程名(不含學程的 e.g. 大師創業)] [課程] [開課學期]-->
<!-- 網址名稱 VLSI110-1_[] -->
## Ch.04 VHDL-Advanced

### Subprograms
- 2 kind of subprograms
- Function
- usually used for computing a single value
- value return to the calling program using a return statement
- executes in zero simulation time
- common uses: type conversion functions
- Procedures
- used to partition large behavior description
- return zero or more values
- execute time is depending on wait statement
### Subprogram Overloading
### Operator Overloading
### Packages
### Generics
### Generate Statements