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Assembly Source File  |  1997-04-16  |  3KB  |  75 lines
  1.  
  2.     ; This file just contains a table for doing a 4x zoom.  Basically you
  3.     ; take a byte in and convert it to a long word (4 bytes) on output.
  4.     ; However I could write the routine to zoom on the ST a little faster
  5.     ; if the low and hi-order words were reversed ... so they are.
  6.  
  7.     dseg
  8.     public _zoomtab
  9. _zoomtab
  10.     dc.l    $00000000,$000f0000,$00f00000,$00ff0000
  11.     dc.l    $0f000000,$0f0f0000,$0ff00000,$0fff0000
  12.     dc.l    $f0000000,$f00f0000,$f0f00000,$f0ff0000
  13.     dc.l    $ff000000,$ff0f0000,$fff00000,$ffff0000
  14.     dc.l    $0000000f,$000f000f,$00f0000f,$00ff000f
  15.     dc.l    $0f00000f,$0f0f000f,$0ff0000f,$0fff000f
  16.     dc.l    $f000000f,$f00f000f,$f0f0000f,$f0ff000f
  17.     dc.l    $ff00000f,$ff0f000f,$fff0000f,$ffff000f
  18.     dc.l    $000000f0,$000f00f0,$00f000f0,$00ff00f0
  19.     dc.l    $0f0000f0,$0f0f00f0,$0ff000f0,$0fff00f0
  20.     dc.l    $f00000f0,$f00f00f0,$f0f000f0,$f0ff00f0
  21.     dc.l    $ff0000f0,$ff0f00f0,$fff000f0,$ffff00f0
  22.     dc.l    $000000ff,$000f00ff,$00f000ff,$00ff00ff
  23.     dc.l    $0f0000ff,$0f0f00ff,$0ff000ff,$0fff00ff
  24.     dc.l    $f00000ff,$f00f00ff,$f0f000ff,$f0ff00ff
  25.     dc.l    $ff0000ff,$ff0f00ff,$fff000ff,$ffff00ff
  26.     dc.l    $00000f00,$000f0f00,$00f00f00,$00ff0f00
  27.     dc.l    $0f000f00,$0f0f0f00,$0ff00f00,$0fff0f00
  28.     dc.l    $f0000f00,$f00f0f00,$f0f00f00,$f0ff0f00
  29.     dc.l    $ff000f00,$ff0f0f00,$fff00f00,$ffff0f00
  30.     dc.l    $00000f0f,$000f0f0f,$00f00f0f,$00ff0f0f
  31.     dc.l    $0f000f0f,$0f0f0f0f,$0ff00f0f,$0fff0f0f
  32.     dc.l    $f0000f0f,$f00f0f0f,$f0f00f0f,$f0ff0f0f
  33.     dc.l    $ff000f0f,$ff0f0f0f,$fff00f0f,$ffff0f0f
  34.     dc.l    $00000ff0,$000f0ff0,$00f00ff0,$00ff0ff0
  35.     dc.l    $0f000ff0,$0f0f0ff0,$0ff00ff0,$0fff0ff0
  36.     dc.l    $f0000ff0,$f00f0ff0,$f0f00ff0,$f0ff0ff0
  37.     dc.l    $ff000ff0,$ff0f0ff0,$fff00ff0,$ffff0ff0
  38.     dc.l    $00000fff,$000f0fff,$00f00fff,$00ff0fff
  39.     dc.l    $0f000fff,$0f0f0fff,$0ff00fff,$0fff0fff
  40.     dc.l    $f0000fff,$f00f0fff,$f0f00fff,$f0ff0fff
  41.     dc.l    $ff000fff,$ff0f0fff,$fff00fff,$ffff0fff
  42.     dc.l    $0000f000,$000ff000,$00f0f000,$00fff000
  43.     dc.l    $0f00f000,$0f0ff000,$0ff0f000,$0ffff000
  44.     dc.l    $f000f000,$f00ff000,$f0f0f000,$f0fff000
  45.     dc.l    $ff00f000,$ff0ff000,$fff0f000,$fffff000
  46.     dc.l    $0000f00f,$000ff00f,$00f0f00f,$00fff00f
  47.     dc.l    $0f00f00f,$0f0ff00f,$0ff0f00f,$0ffff00f
  48.     dc.l    $f000f00f,$f00ff00f,$f0f0f00f,$f0fff00f
  49.     dc.l    $ff00f00f,$ff0ff00f,$fff0f00f,$fffff00f
  50.     dc.l    $0000f0f0,$000ff0f0,$00f0f0f0,$00fff0f0
  51.     dc.l    $0f00f0f0,$0f0ff0f0,$0ff0f0f0,$0ffff0f0
  52.     dc.l    $f000f0f0,$f00ff0f0,$f0f0f0f0,$f0fff0f0
  53.     dc.l    $ff00f0f0,$ff0ff0f0,$fff0f0f0,$fffff0f0
  54.     dc.l    $0000f0ff,$000ff0ff,$00f0f0ff,$00fff0ff
  55.     dc.l    $0f00f0ff,$0f0ff0ff,$0ff0f0ff,$0ffff0ff
  56.     dc.l    $f000f0ff,$f00ff0ff,$f0f0f0ff,$f0fff0ff
  57.     dc.l    $ff00f0ff,$ff0ff0ff,$fff0f0ff,$fffff0ff
  58.     dc.l    $0000ff00,$000fff00,$00f0ff00,$00ffff00
  59.     dc.l    $0f00ff00,$0f0fff00,$0ff0ff00,$0fffff00
  60.     dc.l    $f000ff00,$f00fff00,$f0f0ff00,$f0ffff00
  61.     dc.l    $ff00ff00,$ff0fff00,$fff0ff00,$ffffff00
  62.     dc.l    $0000ff0f,$000fff0f,$00f0ff0f,$00ffff0f
  63.     dc.l    $0f00ff0f,$0f0fff0f,$0ff0ff0f,$0fffff0f
  64.     dc.l    $f000ff0f,$f00fff0f,$f0f0ff0f,$f0ffff0f
  65.     dc.l    $ff00ff0f,$ff0fff0f,$fff0ff0f,$ffffff0f
  66.     dc.l    $0000fff0,$000ffff0,$00f0fff0,$00fffff0
  67.     dc.l    $0f00fff0,$0f0ffff0,$0ff0fff0,$0ffffff0
  68.     dc.l    $f000fff0,$f00ffff0,$f0f0fff0,$f0fffff0
  69.     dc.l    $ff00fff0,$ff0ffff0,$fff0fff0,$fffffff0
  70.     dc.l    $0000ffff,$000fffff,$00f0ffff,$00ffffff
  71.     dc.l    $0f00ffff,$0f0fffff,$0ff0ffff,$0fffffff
  72.     dc.l    $f000ffff,$f00fffff,$f0f0ffff,$f0ffffff
  73.     dc.l    $ff00ffff,$ff0fffff,$fff0ffff,$ffffffff
  74.  
  75.