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Text File  |  2002-11-03  |  8KB  |  216 lines
  1. ;; dsp.s
  2. ;;
  3. ;; COPYRIGHT (c) 1998 by NoCrew Laboratories.
  4. ;;
  5. ;; This reloads the DSP bootstrap code every time
  6. ;; -- which the TOS version does not --
  7. ;; This one does not freeze up.
  8.  
  9.     
  10. dsp_load_bootstrap:
  11.     bsr.s    dsp_reset
  12.     bsr.w    dsp_go
  13.     rts
  14.  
  15. dsp_reset:
  16. ;Power down.
  17.     move.b    #$e,$ffff8800.w
  18.     move.b    $ffff8800.w,d0
  19.     and.b    #$ef,d0
  20.     move.b    d0,$ffff8802.w
  21.     or.b    #$10,d0
  22.     move.b    d0,$ffff8802.w
  23.  
  24. ;Wait for DSP to power down.
  25.     IFNE    1
  26. ; Wait 10msec...
  27.     move.w    $04BC.w,d0
  28. .wait:    move.w    $04BC.w,d1
  29.     sub.w    d0,d1
  30.     cmpi.w    #2,d1
  31.     blt.s    .wait
  32.     ELSE
  33.     move.w    #10000-1,d0
  34. .wait:    nop
  35.     dbf    d0,.wait
  36.     ENDC
  37.  
  38. ;Power up.
  39.     move.b    #$e,$ffff8800.w
  40.     move.b    $ffff8800.w,d0
  41.     and.b    #$ef,d0
  42.     move.b    d0,$ffff8802.w
  43.     rts
  44.  
  45. ;Load system startup code.
  46. dsp_go:    lea    dsp_bootstrap_code,a0
  47.     move.w    #512-1,d0
  48. .next:    btst.b    #1,$ffffa202.w
  49.     beq.s    .next
  50.     move.b    (a0)+,$ffffa205.w
  51.     move.b    (a0)+,$ffffa206.w
  52.     move.b    (a0)+,$ffffa207.w
  53.     dbf    d0,.next
  54.     rts
  55.  
  56.  
  57.     data
  58.  
  59. dsp_bootstrap_code:
  60.     dc.b    $0c,$00,$40,$00,$00,$00,$00,$00,$00,$00
  61.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  62.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  63.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  64.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  65.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  66.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  67.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  68.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  69.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  70.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  71.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  72.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  73.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  74.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  75.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  76.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  77.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  78.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  79.     dc.b    $00,$00,$60,$f4,$00,$00,$00,$4f,$61,$f4
  80.     dc.b    $00,$00,$7e,$a9,$06,$2e,$80,$00,$00,$47
  81.     dc.b    $07,$d8,$84,$07,$59,$84,$08,$f4,$a8,$00
  82.     dc.b    $00,$04,$08,$f4,$bf,$00,$0c,$00,$00,$fe
  83.     dc.b    $b8,$0a,$f0,$80,$00,$7e,$a9,$08,$f4,$a0
  84.     dc.b    $00,$00,$01,$08,$f4,$be,$00,$00,$00,$0a
  85.     dc.b    $a9,$80,$00,$7e,$ad,$08,$4e,$2b,$44,$f4
  86.     dc.b    $00,$00,$00,$03,$44,$f4,$45,$00,$00,$01
  87.     dc.b    $0e,$a0,$00,$0a,$a9,$80,$00,$7e,$b5,$08
  88.     dc.b    $50,$2b,$0a,$a9,$80,$00,$7e,$b8,$08,$46
  89.     dc.b    $2b,$44,$f4,$45,$00,$00,$02,$0a,$f0,$aa
  90.     dc.b    $00,$7e,$c9,$20,$00,$45,$0a,$f0,$aa,$00
  91.     dc.b    $7e,$d0,$06,$c6,$00,$00,$7e,$c6,$0a,$a9
  92.     dc.b    $80,$00,$7e,$c4,$08,$58,$6b,$0a,$f0,$80
  93.     dc.b    $00,$7e,$ad,$06,$c6,$00,$00,$7e,$cd,$0a
  94.     dc.b    $a9,$80,$00,$7e,$cb,$08,$58,$ab,$0a,$f0
  95.     dc.b    $80,$00,$7e,$ad,$06,$c6,$00,$00,$7e,$d4
  96.     dc.b    $0a,$a9,$80,$00,$7e,$d2,$08,$58,$eb,$0a
  97.     dc.b    $f0,$80,$00,$7e,$ad,$00,$00,$00,$00,$00
  98.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  99.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  100.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  101.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  102.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  103.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  104.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  105.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  106.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  107.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  108.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  109.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  110.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  111.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  112.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  113.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  114.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  115.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  116.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  117.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  118.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  119.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  120.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  121.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  122.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  123.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  124.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  125.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  126.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  127.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  128.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  129.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  130.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  131.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  132.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  133.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  134.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  135.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  136.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  137.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  138.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  139.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  140.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  141.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  142.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  143.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  144.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  145.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  146.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  147.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  148.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  149.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  150.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  151.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  152.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  153.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  154.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  155.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  156.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  157.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  158.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  159.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  160.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  161.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  162.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  163.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  164.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  165.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  166.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  167.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  168.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  169.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  170.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  171.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  172.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  173.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  174.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  175.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  176.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  177.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  178.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  179.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  180.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  181.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  182.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  183.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  184.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  185.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  186.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  187.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  188.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  189.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  190.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  191.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  192.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  193.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  194.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  195.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  196.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  197.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  198.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  199.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  200.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  201.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  202.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  203.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  204.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  205.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  206.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  207.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  208.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  209.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  210.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  211.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  212.     dc.b    $00,$00,$00,$00,$00,$00,$00,$00,$00,$00
  213.     dc.b    $00,$00,$00,$00,$00,$00
  214.  
  215.  
  216.     text