From:	mert0407 AT sable DOT ox DOT ac DOT uk (George Foot)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: unsigned char *far : problems
Date:	Wed, 04 Dec 1996 06:48:05 GMT
Organization:	Oxford University
Lines:	15
Message-ID:	<32a51cf9.46054839@news.ox.ac.uk>
References:	<01bbe146$95359e20$582449c2 AT default>
NNTP-Posting-Host:	mc31.merton.ox.ac.uk
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

On 3 Dec 1996 18:26:44 GMT, "Thomas Harte" <T DOT Harte AT btinternet DOT com>
wrote:

>unsigned char far *videobuf = (char far *)0xA0000000L;
>unsigned int far *videobufw = (int far *)0xA0000000L;

I take it you haven't read the FAQ... Go read it. It is extremely
helpful, and has a great deal of information on this problem.

I'll say briefly that the concepts of 'near' and 'far' pointers do not
exist under DJGPP; they are DOS-specific. Go and read the FAQ; this is
dealt with in section 17.7, I think. Accessing video memory is dealt
with specifically in section 10.2.

George Foot

- Raw text -