[an error occurred while processing this directive]
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void drawline(int x1, int y1, int x2, int y2)
{
int x;
int y;
int dx;
int dy;
int sx;
int sy;
int z;
int e;
int i;
int ch;
x = x1;
y = y1;
dx = abs(x2-x1);
dy = abs(y2-y1);
sx = sign(x2-x1);
sy = sign(y2-y1);
e = 2*dy-dx;
if( dy>=dx )
{
z = dx;
dx = dy;
dy = z;
ch = yes;
}
else
{
ch = no;
}
i = 1;
do
{
lcd_setpixel(x, y);
if( e
if( ch == yes)
{
y = y+sy;
}
else
{
x = x+sx;
}
e = e+2*dy;
}
else
{
if( ch == yes)
{
x = x+sx;
}
else
{
y = y+sy;
}
e = e-2*dx;
}
i = i+1;
}
while(i<=dx+dy);
lcd_setpixel(x, y);
}
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