From: Martin Str|mberg <ams AT speedy DOT ludd DOT luth DOT se>
Subject: Re: Writing text to screen
Newsgroups: comp.os.msdos.djgpp
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Date: 03 Aug 2002 21:34:06 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Brent Ritchie <britchieb212 AT rogers DOT com> wrote:
:> Otherwise check out _farpokew()?

Did you?

:     I came across the following code:

: /* note this example will always write to the top
:     line of the screen */
:  void writeString(int colour, char *string)
:  {
:   char *video=(char*)0xB8000;
:   while(*string!=0)
:   {
:    *video=*string;
:    string++;
:    video++;
:    *video=colour;
:    video++;
:   }
:  }

: But I can't get it to work, It just crashes. Anyone know how? I'm going to
: start porting parts of the C++ standard library next month hopefully. I want
: to try and rewrite part of in in assembler so I can get it to run as fast as
: possible.

No wonder. You're in protected mode. You can't go poking on a
whim. Perhaps FAQ 10.2 helps?


Right,

						MartinS