Date: Thu, 28 May 1998 11:34:57 GMT
From: Junior System Administrator <pete AT restall DOT net>
Message-Id: <199805281134.LAA00308@restallnet.demon.co.uk>
To: djgpp AT delorie DOT com
Subject: Re: DJGPP and VGA Pointer ?
Precedence: bulk


On Tue, 26 May 1998 21:29:07 GMT, Jose Hernandez did scribe:
> How can make a pointer to A000:0000 be made in DJGPP?  The only
> example I've seen that does this uses a macro not included with DJGPP,
> MK_FP().

Here's a DJGPP version of 'MK_FP()' (snatched from the FAQ :-):


-------------------->8 Cut here 8<--------------------
#include <sys/nearptr.h>
#include <crt0.h>


void *MK_FP(unsigned short seg, unsigned short off)
{
        if (!(_crt0_startup_flags & _CRT0_FLAG_NEARPTR))
                if (!__djgpp_nearptr_enable())
                        return((void *) 0);

        return((void *) (seg * 16 + off + __djgpp_conventional_base));
}
-------------------->8 Cut here 8<--------------------


Hope this helps,


	Pete =:-)




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