From: "A. Sinan Unur" <asu1 AT cornell DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Printing string in dos memory
Date: 23 Sep 1996 21:13:14 GMT
Organization: Cornell University
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References: <3246CBF0 DOT 58BA AT seitz DOT de>
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To: djgpp AT delorie DOT com
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I think the FAQ explains beautifully how to access DOS memory so, please, RTFM.

sinan.

Mirko Geffken <mirko AT seitz DOT de> wrote:
>Hello,
>
>I need to print a string which was returned to me by vesa routine
>00h.
>What I did didn't work:
>
>----- BEGIN OF BUGGY PROGRAM ----------------
>typedef struct
>{
>  short offset,
>        segment;
>} Toldptr;
>
>Toldptr return;
>
>string=(char *)return.segment*16+return.offset;
>printf("%s\n",string);
>----- END OF BUGGY PROGRAM ----------------
>
>----- BEGIN OF WORKING, BUT BAD STYLE PROGRAM ------
>typedef struct
>{
>  short offset,
>        segment;
>} Toldptr;
>
>char    string[1000];
>Toldptr return;
>dosmemcpy(return.segment*16+return.offset,1000,string);
>prinf("%s\n",string);
>----- END OF WORKING, BUT BAD STYLE PROGRAM ------
>
>Maybe the upper one is stupid, but seems obvious for me.
>
>What did I do wrong? I would like to find out, because the string
>is zero terminated and not necessarily up to 1000 chars long.
>
>Thanks for any help
>
>Mirko