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Text File  |  1988-09-19  |  3KB  |  137 lines
  1.  
  2.     IFND    RESOURCES_DISK_I
  3. RESOURCES_DISK_I    SET    1
  4.  
  5. *****************************************************************
  6. *                                                               *
  7. * Copyright 1985, Commodore Amiga Inc.  All rights reserved.    *
  8. * No part of this program may be reproduced, transmitted,       *
  9. * transcribed, stored in retrieval system, or translated into   *
  10. * any language or computer language, in any form or by any      *
  11. * means, electronic, mechanical, magnetic, optical, chemical,   *
  12. * manual or otherwise, without the prior written permission of  *
  13. * Commodore Amiga Incorporated, 3350 Scott Blvd, Bld #7,        *
  14. * Santa Clara, CA 95051                                         *
  15. *                                                               *
  16. *****************************************************************
  17.  
  18.  
  19. *****************************************************************
  20. *
  21. * discresource.i -- external declarations for disc resources
  22. *
  23. * SOURCE CONTROL
  24. * ------ -------
  25. * $Header: disk.i,v 27.3 85/07/12 23:17:43 neil Exp $
  26. *
  27. * $Locker:  $
  28. *
  29. *****************************************************************
  30.  
  31.     IFND    EXEC_TYPES_I
  32.     INCLUDE    "exec/types.i"
  33.     ENDC    !EXEC_TYPES_I
  34.  
  35.     IFND    EXEC_LISTS_I
  36.     INCLUDE    "exec/lists.i"
  37.     ENDC    !EXEC_LISTS_I
  38.  
  39.     IFND    EXEC_PORTS_I
  40.     INCLUDE    "exec/ports.i"
  41.     ENDC    !EXEC_PORTS_I
  42.  
  43.     IFND    EXEC_INTERRUPTS_I
  44.     INCLUDE    "exec/interrupts.i"
  45.     ENDC    !EXEC_INTERRUPTS_I
  46.  
  47.     IFND    EXEC_LIBRARIES_I
  48.     INCLUDE    "exec/libraries.i"
  49.     ENDC    !EXEC_LIBRARIES_I
  50.  
  51.  
  52. *********************************************************************
  53. *
  54. * Resource structures
  55. *
  56. *********************************************************************
  57.  
  58.     STRUCTURE DISCRESOURCEUNIT,MN_SIZE
  59.     STRUCT    DRU_DISCBLOCK,IS_SIZE
  60.     STRUCT    DRU_DISCSYNC,IS_SIZE
  61.     STRUCT    DRU_INDEX,IS_SIZE
  62.     LABEL    DRU_SIZE
  63.  
  64.  
  65.  
  66.     STRUCTURE DISCRESOURCE,LIB_SIZE
  67.     APTR    DR_CURRENT    ; pointer to current unit structure
  68.     UBYTE    DR_FLAGS
  69.     UBYTE    DR_pad
  70.     APTR    DR_SYSLIB
  71.     APTR    DR_CIARESOURCE
  72.     STRUCT    DR_UNITID,4*4
  73.     STRUCT    DR_WAITING,LH_SIZE
  74.     STRUCT    DR_DISCBLOCK,IS_SIZE
  75.     STRUCT    DR_DISCSYNC,IS_SIZE
  76.     STRUCT    DR_INDEX,IS_SIZE
  77.     LABEL    DR_SIZE
  78.  
  79.     BITDEF    DR,ALLOC0,0    ; unit zero is allocated
  80.     BITDEF    DR,ALLOC1,1    ; unit one is allocated
  81.     BITDEF    DR,ALLOC2,2    ; unit two is allocated
  82.     BITDEF    DR,ALLOC3,3    ; unit three is allocated
  83.     BITDEF    DR,ACTIVE,7    ; is the disc currently busy?
  84.  
  85.  
  86. *********************************************************************
  87. *
  88. * Hardware Magic
  89. *
  90. *********************************************************************
  91.  
  92.  
  93. DSKDMAOFF    EQU    $4000    ; idle command for dsklen register
  94.  
  95.  
  96. *********************************************************************
  97. *
  98. * Resource specific commands
  99. *
  100. *********************************************************************
  101.  
  102. *-- DR_NAME is a generic macro to get the name of the resource.  This
  103. *-- way if the name is ever changed you will pick up the change
  104. *-- automatically.
  105. *--
  106. *-- Normal usage would be:
  107. *--
  108. *-- internalName:    DISKNAME
  109. *--
  110.  
  111. DISKNAME:    MACRO
  112.         DC.B    'disk.resource',0
  113.         DS.W    0
  114.         ENDM
  115.  
  116.     LIBINIT LIB_BASE
  117.     LIBDEF    DR_ALLOCUNIT
  118.     LIBDEF    DR_FREEUNIT
  119.     LIBDEF    DR_GETUNIT
  120.     LIBDEF    DR_GIVEUNIT
  121.     LIBDEF    DR_GETUNITID
  122.  
  123. DR_LASTCOMM    EQU    DR_GIVEUNIT
  124.  
  125.  
  126. *********************************************************************
  127. *
  128. * drive types
  129. *
  130. *********************************************************************
  131.  
  132. DRT_AMIGA    EQU    $00000000
  133. DRT_37422D2S    EQU    $55555555
  134. DRT_EMPTY    EQU    $FFFFFFFF
  135.  
  136.     ENDC
  137.