GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  NET (5)

NAME

net - format of .net files read/written by Magic’s netlist editor

CONTENTS

Description

DESCRIPTION

Netlist files are read and written by Magic’s netlist editor in a very simple ASCII format. The first line contains the characters ‘‘ Netlist File’’ (the leading blank is important). After that comes a blank line and then the descriptions of one or more nets. Each net contains one or more lines, where each line contains a single terminal name. The nets are separated by blank lines. Any line that is blank or whose first character is blank is considered to be a separator line and the rest of its contents are ignored.

Each terminal name is a path, much like a file path name in Unix. It consists of one or more fields separated by slashes. The last field in the path is the name of a label in a cell. The other fields (if any), are cell instance identifiers that form a path from the edit cell down to the label. The first instance identifier must name a subcell of the edit cell, the second must be a subcell of the first, and so on.

Instance identifiers are unique within their parent cells, so a terminal path selects a unique cell to contain the label. However, the same label may appear multiple times within its cell. When this occurs, Magic assumes that the identical labels identify electrically equivalent terminals; it will choose the closest of them when routing to that terminal. Further, after connecting to one of these terminals Magic may take advantage of the internal wiring connecting them together and route through a cell to complete the net’s wiring.

An example netlist file follows below. It contains three distinct nets.

\l’10c—’

Netlist File

alu/bit_1/cout alu/bit_2/cin

regcell[21,2]/output latch[2]/input This line starts with a blank, so it’s a separator. opcode_pla/out6 shifter/drivers/shift2

\l’10c—’

SEE ALSO

magic(1)
Search for    or go to Top of page |  Section 5 |  Main Index


NET (5) -->

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.