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void write_bmp(unsigned char *img, int width, int height) {
  bmpfile_t *bmp;
  int i, j;
  rgb_pixel_t palette[PALETE_NUM_COLORS] = {0};

  if ((bmp = bmp_create(width, height, 32)) == NULL) {
    printf("Could not create bitmap");
    exit(-1);
  }

GiorgioRegni

; Mandelbrot fractal constant, play with it to generate cool images
@MAXITER = internal constant i32 200                
@ESCAPE = internal constant double 4.0
@XC = internal constant double -0.10894500736830963 ; center point x
@YC = internal constant double -0.8955496975621973  ; center point y
@ZOOM = internal constant double 0.1                ; zoom into the fractal
@W  = internal constant i32 2048                    ; image width
@H  = internal constant i32 2048                    ; image height

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<result> = add i32 4, %var          ; yields {i32}:result = 4 + %var
<result> = fadd float 4.0, %var     ; yields {float}:result = 4.0 + %var
<result> = sub i32 0, %val          ; yields {i32}:result = -%var
<result> = fsub float 4.0, %var     ; yields {float}:result = 4.0 - %var
<result> = mul i32 4, %var          ; yields {i32}:result = 4 * %var
<result> = fmul float 4.0, %var     ; yields {float}:result = 4.0 * %var
<result> = udiv i32 4, %var         ; yields {i32}:result = 4 / %var
<result> = sdiv i32 4, %var         ; yields {i32}:result = 4 / %var
<result> = fdiv float 4.0, %var     ; yields {float}:result = 4.0 / %var
<result> = urem i32 4, %var         ; yields {i32}:result = 4 % %var

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For each pixel on the screen do:
{
  x0 = scaled x co-ordinate of pixel (must be scaled to lie somewhere in the interval (-2.5 to 1)
  y0 = scaled y co-ordinate of pixel (must be scaled to lie somewhere in the interval (-1, 1)
  ESCAPE = 2*2

  x = 0
  y = 0

  iteration = 0

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; LOOP for(t=0; t<max, t++)
       store i32 0, i32* %t.addr
       br label %loop_over_t

loop_over_t:
       %t = load i32* %t.addr ; %t contains the loop counter current value
       ; ... DO SOME WORK ...
  
       ; increment t and loop
       %t_plus_1 = add i32 1, %t