From: csantill AT lausd DOT k12 DOT ca DOT us
Message-ID: <33C7FE06.6CAC@lausd.k12.ca.us>
Date: Sat, 12 Jul 1997 14:58:30 -0700
MIME-Version: 1.0
To: djgpp AT delorie DOT com
Subject: FAQ is useless when it comes to Mode13h
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from: csantill AT lausd DOT k12 DOT ca DOT us

For some odd reason I am unable to a simple fill_screen timing routine
for mode 13h.  I tried what the FAQ suggests(about mode 13h) & I get no
results.  It seem to me that it would be as simple as writing a
put_pixel routine then running a few for-loops.  I'm able to get to run
in a single loop w/rand() used for the arguments but not standard
declared variables.  All I see when try Brennan's, the FAQ's, Matt
Reiferson's, & others on the mailing list suggestions is a blank screen.

I'm gonna write a simple pseudo-code description of what I want to do &
I'll somebody gets back to me.  By the way I have a Trident ET???? & a
Pent120 w/Win95(I love DOS-mode alot more) but that shouldn't make a
difference.

-------F_P_S.C---------------
// Include what ever files are necessary like stdio, go32 or dpmi, pc.h,
time.h

// Initialize vars like a buffer or descriptor to 0xA000(real mode mem)

// Declare functions like Putpix,Set13h,Set03h

// Declare main
int main(void)
{
  int x,y,c1;
  char colour;

// set mode13h

// Get start time
  for(c1=0; c1==510; c1=c1+2)
  {
    colour=c1/2; // because you cant do a for(colour=0;colour==255;c++)
because you
                 //   get an infinite loop
    for(y=0;y==199;y++)
      for(x=0;x==319;x++)
        putpix(x,y,c);
  }
// get end time

// set back to text mode

// compare times & print results
  printf("FRAMES PER SEC = %d", (TIME_2-TIME_1)/256));

  return 0
}

A side-effect of this program should be that you will see all 256 colors
on the screen