ShadowRAM Forum - Masthead

Neverwinter Nights Basic-Return To Castle Wolfenstein 3-D MOD -Zombie Expansion Pack² BOOSTER - AMDDR 1969 Gygax-Processor - This web site is completely unofficial and in no way endorsed by anyone .- © 2008 Atari64XS BIOSphere ZEP²

ShadowRAM » Masthead

Masthead:
This is a free razyboard.com-forum.
The owner of this forum is exclusive responsible for the content. You are able to contact the administator of this forum with an e-mail, if you found illegal content. Please contact the Razyboard - Abuse Team in exceptional cases or if the administrator does not observe your message. We will send you a backup of your e-mail to your mail-address.

Additional masthead-content, which is written by the owner of this forum:

(g)umyrights protected since 1969 Drezdany-Germany
Oozeware-Free for personal use and to share with others !

In order to login you must be registered. Registering takes only a few moments but gives you increased capabilities. The board administrator may also grant additional permissions to registered users.

Recommend AMDDR 1969 Gygax-Processor

This web site is completely unofficial and in no way endorsed by anyone .

Shadow RAM

Sometimes, the contents of a ROM chip are copied to SRAM or DRAM to allow for shorter access times ( as ROM may be slower ). The ROM chip is then disabled while the initialized memory locations are switched in on the same block of addresses (often write-protected). This process, sometimes called shadowing , is fairly common in both computers and embedded systems.

As a common example, the BIOS in typical personal computers often has an option called use shadow BIOS or similar. When enabled, functions relying on data from the BIOSs ROM will instead use DRAM locations (most can also toggle shadowing of video card ROM or other ROM sections). Depending on the system, this may or may not result in increased performance. On some systems the benefit may be hypothetical because the BIOS is not used after booting in favour of direct hardware access. Of course, somewhat less free memory is available when shadowing is enabled

My name is:	*
My e-mail-address is:	*
E-mail-content:	*
Securetext:	* Please put in the text, which you can see in the picture, to avoid automatic email. Cookies have to be activated! There are no numerics in the picture. If you are an AOL-User and have problems, please use this LINK
	* = Mandatory fields

ShadowRAM » Masthead