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Path: utzoo!watmath!clyde!cbosgd!ihnp4!inuxc!pur-ee!uiucdcs!keifer
From: keifer@uiucdcs.CS.UIUC.EDU
Newsgroups: net.micro.pc
Subject: Re: Program to Save & Display Text Quic
Message-ID: <24700135@uiucdcs>
Date: Sat, 5-Apr-86 15:29:00 EST
Article-I.D.: uiucdcs.24700135
Posted: Sat Apr  5 15:29:00 1986
Date-Received: Thu, 10-Apr-86 21:17:47 EST
References: <748@watdragon.UUCP>
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Nf-ID: #R:watdragon.UUCP:748:uiucdcs:24700135:000:439
Nf-From: uiucdcs.CS.UIUC.EDU!keifer    Apr  5 14:29:00 1986


If I remember correctly, IBM CGA screen memory starts at B800, 4 pages
of 25x80 characters, 2 bytes per character (including attribute).
That makes 25 x 80 x 2 x 4 bytes starting at B800:0000.

The IBM Monochrome adaptor starts at a different place.

See the IBM BASIC Reference Manual under BSAVE (and BLOAD) for a
sample code section to save and retrieve screens.  (I don't have mine
handy, sorry.)

	G. P. Seaburg
	c/o keifer
	uiucdcs