Message-ID: <34663B3F.A9ABDCF5@provider.com.br>
Date: Sun, 09 Nov 1997 20:37:51 -0200
From: Antonio Dias <accdias AT provider DOT com DOT br>
MIME-Version: 1.0
To: djgpp AT delorie DOT com
Subject: Character redefinition
Content-Type: text/plain; charset=us-ascii
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Hello all,

I'm trying to redefine characters using DJGPP. For this I'm using the
code snippet below without success. What is wrong here?

---- code begin ----

/* FONT.C

   This is a port to C from the Assember routine FONT.ASM.

   I did not compile this to make sure but it should run OK.

   If this doesn't run on your system, please let me know and I

   will try to fix it for portability.



   Please report any errors you might find to blunt AT zekes DOT com.

   Source from http://www.zekes.com/~blunt/index.html.



   Forever Young Software

   Benjamin David Lunt

   (C)opyright 1997

   All rights reserved

   07/29/97



   I use Microsoft C Compiler.  If you use Borland C then don't use

   the *mptr pointer.  Just use OurFont in place of mptr in the FP_SEG

   and FP_OFF functions.



*/





#include <dos.h>



unsigned char OurFont[28] = {

	    0x00,          /* 00000000b */

            0x7F,          /* 01111111b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x7F,          /* 01111111b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x00,          /* 00000000b */

            0x00,          /* 00000000b */



            0x00,          /* 00000000b */

            0x7E,          /* 01111110b */

            0x66,          /* 01100110b */

            0x66,          /* 01100110b */

            0x66,          /* 01100110b */

            0x7F,          /* 01111111b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x63,          /* 01100011b */

            0x7F,          /* 01111111b */

            0x00,          /* 00000000b */

	    0x00           /* 00000000b */

};



void main(void)

{

  union REGS pregs;

  struct SREGS sregs;

  void far *mptr = OurFont;



  pregs.x.ax = 0x1100;

  pregs.x.dx = 0x41;       /* 65  'A' */

  pregs.x.cx = 0x02;       /* two char's to change */

  pregs.h.bh = 0x0E;

  pregs.x.bp = FP_OFF(mptr);

  sregs.es = FP_SEG(mptr);

  int86x(0x10, &pregs, &pregs, &sregs);

}



Huge hugs,
Antonio Dias <accdias AT provider DOT com DOT br>