Category : Assembly Language Source Code
Archive   : C--C0200.ZIP
Filename : VGA286.H--

 
Output of file : VGA286.H-- contained in archive : C--C0200.ZIP

/*
SPHINX Programming (C) 1993.
NAME: VGA286.H--
DESCRIPTION: This file contains procedures for writing to VGA screens
that have been optimized by use of 80286 instructions.
LAST MODIFIED: 26 Dec 1993
PROCEDURES DEFINED IN THIS FILE:
: void PUTPIXEL19_286(xloc,yloc,byte colour)
: void _PUTPIXEL19_286(xloc,yloc,byte colour)
: void XORPIXEL19_286(xloc,yloc,byte colour)
: void _XORPIXEL19_286(xloc,yloc,byte colour)
*/



: void PUTPIXEL19_286 ()
/*
AX = Xlocation; BX = Ylocation; CL = Colour;
*/
{
$SHL BX,6
AX += BX;
$SHL BX,2
BX += AX;
ES = 0xA000;
ESBYTE[BX] = CL;
}


: void XORPIXEL19_286 ()
/*
AX = Xlocation; BX = Ylocation; CL = Colour;
*/
{
$SHL BX,6
AX += BX;
$SHL BX,2
BX += AX;
ES = 0xA000;
ESBYTE[BX] ^= CL;
}


: void _PUTPIXEL19_286 ()
/*
AX = Xlocation; BX = Ylocation; CL = Colour;
*/
{
$SHL BX,6
AX += BX;
$SHL BX,2
BX += AX;
ESBYTE[BX] = CL;
}


: void _XORPIXEL19_286 ()
/*
AX = Xlocation; BX = Ylocation; CL = Colour;
*/
{
$SHL BX,6
AX += BX;
$SHL BX,2
BX += AX;
ESBYTE[BX] ^= CL;
}


/* end of VGA286.H-- */