    <  ࠭.  1.21  27.01.95>

                 IDE   


      ஫ 믮  㭪樨  ନ஢⥫  -
䥩 ᨣ,  ᮢ  ॣ஢ ,  
᢮  (160000-167777)  ᫥ ஢  326-訢-
   ࠩ஬   ᪮  (170000-176777).
      : ࠩ ७ 䬥⨪  326-  -
訢 ⠢, ,  楫  ,    -
⪨ (  - 2400,  - 776 ,    প
FIS).   祭 짮⥫᪮ ࠩ-
 䬥⨪, ਬ, ন饣 FIS     -
쭮  த⢨.
                IDE
⥫   2  (63. ᥪ, 16. ,  4095.
஦). ⥫   ࠧ    ,  祬   124.
᪨ ᪠ ந쭮 ' ( 5   32  ).


                          

      ॣ        祭
                        (⥭/)

        177740        /
        177742        롮   
        177744        .  ஦
        177746        .  ஦
        177750         ᥪ
        177752        稪 ᥪ஢
        177754         訡/ ᯮ
        177756         ⥭/

        177741         ⥫/ ᯮ
        177743        2- /

:
     1. 177741  訩   177740,    ᠬ⥫  -
, ᯮ  ⭮  (筮  177743).
     2.  ⮣,      ࠧ  0  1  設
(  設  ᮮ⢥  ஢  殮,  
 設  - ᮪),  ࠧ " ⠭" ᫥ -
  ⢨,  ..   ।⠢  ᭮
.
     3.   訡,   ⠭, ⭮騥   -
ࠬ ,   쬥筮   ந஢  (..
"⮢  㯮ॡ").
     4.  : ⮢       
஫  .
       (177756) ᯮ    묨  
. ।   ⢫  ᫮.    믮
 権   । ⠬.

      訡 (177754) । ﭨ  ᫥ -
 樨. ﭨ ⮣ ॣ ⢨⥫쭮:
     1) ᫥ 믮 , ᫨ ⠭  ERR ॣ-
 ﭨ;
     2) ᫥ 믮 ७ ⨪   -
 ⠭.

      ᪮ ०  ᫥ 믮   "-
७ ⨪" ᮤন ॣ 訡 㪠뢠  ᫥-
饥:
       376 -  訡;
       375 - 訡 ப஫;
       374 - 訡 ୮ ;
       373 - 訡  ECC;
       372 - 訡 ய ;
     ⠫     ࠢ ⥫.

     祭 ⮢ ॣ 訡 ᫥ 믮 㣨  -
:
      0 (AMNF) Data Adress Mark Not Found  -  ⠭
 ६ 믮   "⥭  ᥪ஢",  ᫨  
થ  ᮮ⢥饣 ᥪ   ᫥  ࠢ-
 宦 䨪.
      1 (T0NF) Track 0 Not Found - ⠭  ⮫쪮  
 "஢", ᫨  㦥 ஦ 0.
      2 (ABRT) Aborted Command - ⠭   -
   ﭨ "Write fault", "Not seek complete", "Drive
not ready"   뫠  㦥  ⢨⥫쭠  .
稭 訡   ।   ॣ஢ -
ﭨ  訡.
      3 -  ᯮ.
      4 (IDNF) ID Not Found  -  ॡ㥬  樫,  ,
ᥪ    㦥   ந諠  訡  ECC  
 䨪.
      5 -  ᯮ.
      6 (UNC) Uncorrect Data - 訡 ECC   .  -
⠭  砥 ४㥬 訡.
      7 (BBK) Bad Mark Block -    䨪  㦥
⪠ 䥪⭮ ᥪ.

      稪 ᥪ஢ (177752) ᮤন ⢮ ᥪ-
஢, ॡ饥  樨. ।  ᥪ  ந-
室  祭 376,  -  祭 375  ... ᫨ 
믮 । ந諠 訡   ⥭ ।-
 ᥪ,  । ४頥   ॣ 室  -
⢮ ।  ᥪ஢,  ⠢襥  ᫥  㦥
訡.  ᯥ譮 襭  ᮤন ⮣ ॣ-
 ࠢ 377.

       ᥪ (177750)  ᮤন  ⮢  
ᥪ. ᫥ ࠡ⪨  ᥪ  ᮤন  ⮣  -
 ४. ᫥ 믮     ॣ-
 室  ᫥ ࠡ⠭ ᥪ    
ᥪ,  ஬ ந諠 訡. 㬥 ᥪ஢ ந-
, 稭  1 (.. 376 - 1- ᥪ, 375 -  2-    ..).
ᨬ  ⮢ ᥪ ( ⠪ ᨬ  -
 ) ।  䨣樨 .

      襣 (177746)  襣 (177744) ⮢ 
஦ ।  砫쭮 ஦  ன 㤥 -
 .

      롮 /  (177742)  ᫥騩
:

      0-3 -   ࠭ .
      4    - 롮 ,  DRV = 0 ࠭  0,
                             DRV = 1 ࠭  1.

     ਬ: 377 -  0, ਢ 0;
               376 -  1, ਢ 0  ...

:  ࠩ, ࠧ饭    ஫
ন ⮫쪮  ਢ.   ⥫,    ⠪
 㣨 㦤   ࠧ饭      
஫ ࠩ 짮⥫.

      ﭨ (177740  ⥭) ⮡ࠦ ⥪饥 -
ﭨ . 祭 ⮣ ॣ  ᫥ 믮-
  . ᫨ ⠭  BSY ⮣  ॣ,  
 饭   饭  祭 ⠫ ⮢  -
⢨⥫.

     祭 ⮢ ॣ ﭨ:
      0 (ERR) Error - 㪠뢠,  ।    -
稫  訡,    ॣ  訡  ⠭  
 ᪮쪮 ⮢. ᯮ  ன ஢ન ᯥ譮
襭 . 뢠     .
      1 (INX) Index -     ⠭    
 ⭮ ᪠.  ᮢ६   ᯮ.
      2 (CORR) Corrected Data - ,    뢠-
  ந諠 訡,  뫠 ᯥ譮 ᪮४஢-
 ன ECC. ४㥬 訡  ४  -
ᥪ ।.
      3 (DRQ) Data Request -   뢠,  
   묨  ஬ ᥪ .  ⮬ 
室       ,  -
  .
      4 (DCS) Drive Seek Complete - ,    
⥭/ 訫  ᪠.
      5 (WFT) Write Fault - 㪠뢠  ࠢ   -
⥫   믮  " ᥪ஢"   -
४묨 ࠬࠬ.
      6 (DRDY) Drive Ready - ⠭,    -
⮢  믮 .
      7 (BSY) Busy - ⠭  ६ 믮  -
  ⨪ .     ⠭,  
㣨  ॣ ﭨ   ⢨⥫묨.

       (177740  ) ᯮ  㧪
 믮塞 . ।     室
 㦭   ॣ 177742-177752,   -
室  ﭨ   (BSY  襭).    稭
믮 ࠧ  ᫥    ॣ.

      ୠ⨢ ﭨ (177743  ⥭) ᮤ-
 ⠪  ଠ,   ॣ ﭨ.  稥  -
砥  ⮬,  ⥭ ⮣ ॣ   뢠  -
 뢠 IRQ14   (   ᯮ).

       (177743  ) ᮤন ᫥騥 ࠢ-
騥 :
      0 -  ᯮ.
      1 - Interrupt Enable -    ࠧ襭  뢠  
 (   ᯮ).
      2 - Soft Reset  -  ணࠬ  .    믮
 室 ᭠砫 ⠭,  ⥬   .
      3 - Heads 3 Enable - ᯮ  ࠧ襭 롮
  8  15 ( ࠢ,  ᯮ).
      4-7 -  ᯮ.

       ⥫ (177741  ⥭) ᮤন 
  , ࠭  ।饩 樨.

      0-1 -  롮 ⥫ 0  1.
      2-5 - ᮤঠ   ࠭ .
      6 - Write Gate - ⨢  ६ 樨 .
      7 -  ᯮ.


                           

      뢠  ॣ . ᫨  DRDY  BSY
ॣ ﭨ 㪠뢠,   ⮢  ਥ  ᫥-
饩 ,  砫    ࠢ쭮  ⠭  
室 ࠬ  ॣ 177742-177754.  稭-
 믮 ࠧ  ᫥    ॣ. ᫥  믮-
 砫쭮 䠧    BSY  뢠,    DRQ-
㪠뢠  室 ਥ/। .   ⠭-
 DRQ ணࠬ ਭ 256. ᫮   ᥪ १
ॣ   ।  㤠.  뢠  DRQ-  
த 믮 ,   ,  祭 -
 ᥪ஢  㬥  0.

       (쬥,  㦥  ᭮ ):

     ஢                               357
     ⥭ ᥪ஢                            33X
        X=7 -  ࠬ  訡
        X=6 -  ஢  訡
        X=5 -   ࠬ  訡
        X=4 -   ஢  訡
      ᥪ஢                            31X
        X=7 -  ࠬ  訡
        X=6 -  ஢  訡
        X=5 -   ࠬ  訡
        X=4 -   ஢  訡
     䨪                                27X
        X=7 -  ࠬ  訡
        X=6 -  ஢  訡
     ଠ஢ ஦                     257
     樮஢                           217
     ७ ⨪                     157
     樠 ࠬ஢               156
     ⥭  ᥪ                      033
       ᥪ                      027
     䨪                          023

     ஢ (357)  -  ⮩    ⠭-
  㫥 ஦. ᫨   ᯮ,  -
稢 ⠭  ERR  ॣ ﭨ   T0NF
 ॣ 訡.

     ⥭ ᥪ஢ (33X) -  ⮩      1  
256. ᥪ஢  ᨬ  祭 ॣ 稪 ᥪ-
஢,  稭  祭 ᥪ. ᫨ ID ᥪ  -
  થ    ⠭,    饭 (X=6,4),
 ନ 訡 IDNF    AMNF.  ᫨    ࠧ襭
(X=7,5),   ᮮ⢥ 訡 ନ ᫥ ண
⢠ ᯥ ஢.  ᫨    -
  䨪 ⠭ ᯥ譮,    த 
訡  䨪.  ᫥  宦  ᭮  થ  
䨪 뢠    ⥭ ᥪ -
 訡筮,   ४㥬  ४㥬 訡-
 . ᫨  ६ ᥪ୮ ⥭  訡-
,   ⥭ 稢  ᥪ,   㦥. -
 ࠧ  ।  訡.   ४-
㥬 訡  ⠭  CORR ॣ -
  ᫥  뢠 த 믮 , ᫨
  祭. ᫨ 訡    ४-
㥬, 䥪  ।  ⥬,  믮 -
  ४頥    ⠭  UNC ॣ 訡.
 ⥭ 믮 筮 筮, ⮫쪮 ᫥ -
।   ⥬ 256.  ᫮ ।  4  ECC.  訡
ECC    믮 ⮩   䨪.  -
।  ⢫ ᫮,   ECC - ⠬.

      ᥪ஢ (31X) -  ⮩  뢠    1
 256. ᥪ஢ (믮 筮  "⥭  ᥪ-
஢"). ᫥   ᮮ⢥騩 ᥪ 祭 
뢠 4  ECC, ନ஢ , ᫨  -
,  4 , । ⥬, ᫨  .

     䨪 (27X) -  ⮩  ஢ ଠ 㪠-
 ஦.  믮 筮    "⥭
ᥪ஢",   । .

     ଠ஢ (257) -  ⮩  ந -
஢  ଠ஢   ஦ .   믮
⮩  室  ᮮ⢥騥      -
     ஦,   ⥬ ᫠   -
 . ᫥ ⮣   १ ॣ  ।
,  ࠧ஬   ᥪ,  ⮬,    
 " ᥪ஢".   ⮬   N ᫮ ( N -
᫮  ᥪ஢    ஦)  ᮤঠ  ଠ    ᥪ
(.:  0 - ᥪ 訩, 200 - ᥪ 宩; .: -
᪨  ᥪ). 祭 ⠫ ⮢    -
ࠧ.  ᫥ 뢠  ᨨ !
      ᮢ६  ⥫ ஢ ଠ-
஢  ᭮ ( ᫥ 室  )  ।-
,   ࠭ ᨨ "  Low Lewel'a",  ᫨  
ଠ஢  ணࠬ   ⮢⥫. ,  ⠪,
ଠ஢    ஫ ᯥ樠 (᫨  
室, .. BAD   IDE-⥫ -   쭮
।).   , 筮, ଠ஢  室-
.

     樮஢ (217) -  ⮩    -
  㪠 ஦.

     ७ ⨪ (157) - 믮 ७ -
⨪ ,  砭 ன  ॣ 訡 ନ
 襭 (376, ᫨ 訡  ந諮). ஢  -
 訡 .  䠩, 뢠饬 ॣ ⥫.

     樠 ࠬ஢  (156) -  ⮩   
ࠨ  ࠬ,  ⥫ .  
  믮 ᫥ "" .   
 (177742)  稪 ᥪ஢ (177752)    ᮤঠ
ᨬ   (  0)  ᨬ쭮 ⢮
ᥪ஢  ஦ (  1) ᮮ⢥⢥.    -
,     ᮤঠ  16.   63. ᥪ-
஢  ஦ (䨧᪮ ࠭祭  IDE ⥫).

     ⥭  (033) -  ⮩   ⠭  -
 DRQ  ॣ ﭨ. ࠩ    ᮤন-
  ᥪ (256. ᫮) १ ॣ .

       (027) -  ⮩   ⠭  -
 DRQ  ॣ ﭨ, ᫥ ⮣ ࠩ  -
 256. ᫮   ᥪ १ ॣ .

     䨪  (023) -  ⮩   ᥪ  -
 뢠 ᯮ ᪠  ନ  DRQ  ॣ-
 ﭨ. ᯮ ᪠ - ࠢ筠 ଠ  䨣-
樨   ࠪ⨪ .  ᯮ   ᥪ (256.
᫮) , 筮,       ,      
  ⥫  ᯮ      ࠡ
孮⥩  ᪮.


                      

         饭         祭

             0       ᫮ 䨣樨
             2      ⢮ ஦
             4      १ࢨ஢
             6      ⢮ 
            10      ⢮   ஦
            12      ⢮   ᥪ
            14      ⢮ ᥪ஢  ஦
            16-23   䨪 த
            24-47   ਩  (ASCII)
            50       ஫
            52          ᥪ
            54      ⢮  
            56-65    ࠡ ணࠬ (ASCII)
            66-135   (ASCII)

:  ࠡ⪥  24-47, 56-65  66-135 ᫥ -
  SWAB.  뢠 ⠪  ᨨ.

          㣨: ਬ, 몫-
騥 ⥫   㬥襭 ॡ塞 魮 (⠪ -
뢠 "Power Save" ), 騥 ७ -
⥫, 騥 ᯨ᮪ 䥪 , 騥 ᪮쪮
ᥪ஢     ..   -⮢⥫    
 ⠭   , ⮬  ਢ  ⮫쪮
騩  , 믮塞  IDE ⥫ﬨ.
                       

                         

       ࠬ஢ ࠩ   -
   ࠬ஢ ࠩ ᪮.  ⢥-
騬   窨 室  ⥭/.
      ஬ ਢ ⥯ ᫥ : 0-1 - ᪮-
 (A:, B:), ⠫쭮 - ᪨ ᪨  (C:, D:, ...).
        ࠧ   祬  124 ᪨  -
 ந쭮 '.
       ᪨ ᪠ 室  ⠡ ࠧ,  
ன ।ᬮ७ ணࠬ   (.  ).  㬥
᪨ ᪮ ந, 稭     (ன  C:
ᮮ⢥ ᪨   ஬ 0  ..).
      ४ ࠧ ⥫    ᫨誮  讥
⢮ ᪨ ᪮, ⮬,   ⮬ 砥  -
     樮 ⥬  (  墠⠥  㪢),
     筮  ⥭  १  160004
(..  ࠧ 뢠 CRC ⠡ ࠧ   
䨣樨),   ࠧ  ⠪    ଠ樨  -
쭮 殮.

:     ᫥  ᪨ ᪨ -
~~~~~~~~~~ 樮 ⥬ (RT11, MKDOS   .)    ᪨
           ᪠ .


                        

160000  ⮬᪠ 㧪
        ࠬ .
      㧪 ᠭ .

160002  㧪  ࠭ ਢ
        R0 -  ਢ.
      㧪 ᠭ .

160004  ⥭/   
        R0 -  砫쭮 ;
        R1 -  뫠 ᨢ  (᫮):  -
             ⥫쭠 - ⥭, ⥫쭠 - ;
        R2 -  ᨢ ;
        R3 -  砫  ࠬ஢;
        34(R3) -  ਢ (0-124.).
     ᫨  砫쭮  室  । -
 ᪠,  ࠩ஬  訡 5     묨  
⥬  ந. ᫨    ⥭/  ᥪ
࠭ ᪮ ᪠, ⠪ 뤠 訡 5,  ।-
 ᨬ쭮  ⢮ . ᫨ ᪨ 
 ।, 뤠 訡 3. ᫨   祭    
뤠 ᨣ ⮢  祭 । ஬⪠ -
, 뤠 訡 6.
        饭   ந   CRC
⠡ ࠧ   䨣樨  (⮥  ᫮  
 ७)  ࠢ   ⠫, 室騬  
㦥 ଠ樨.  砥 ᮢ ⠡  ࠧ  
䨣 ୮ 뢠  ,    
஫쭠 㬬  ⢮ 㯭 ᪨ ᪮,  -
 ணࠬ  ⥫, ⠭   -
஢ (  㧪)  뤠 訡 13(8).  묨
 ந. ᫥騥 饭     ந室  -
쭮.
     訡 13(8)  ᨣ  ⠡  ࠧ  
 䨣樨    ணࠬ,  -
諥  諥  ᤥ.

:    䨣樨      HD$TRK,
~~~~~~~~~~ HD$HEA, HD$SEC  HD$LOG  㦥 ଠ樨.

160006  ⥭/   ᥪ,   ஦
        R3 -  砫  ࠬ஢;
        26(R3) -  ᨢ ;
        30(R3) -  뫠 ᨢ  (᫮):  -
                 ⥫쭠 - ⥭, ⥫쭠 - ;
        32(R3) - . 4  -   (0-15.),
                 . 4  - 0-3   ஦;
        33(R3) - 4-11   ஦;
        34(R3) -  ਢ (0-124.);
        35(R3) -  砫쭮 ᥪ.
      ਢ    ⥭    ⢥  ஫  
ࠥ, 室 ⮫쪮, ⮡         ࠢ  2.
      ਢ, ࠢ 377  (octal),
 ⪥   ஬ ਢ  2  376 뤠 訡
1.  ⥭          ।  ᥣ  ⥫,
ࠧ  ᪨ ᪨  .    室  
। 䨣樨 , 뤠 訡 5.

: ᫥ 砭 ࠡ ணࠬ ࠩ,  易-
~~~~~~~~~~   ।祩 ଠ樨 (160000-160006,160012),  
R4  頥    ॣ  訡    楫  ࠫ樨
⢨ ணࠬ,   0 (  ⮫쪮)  @R4.

160010  樠  ࠬ஢.
        R3 -   ࠬ஢.

160012  ଠ஢
        R3 -   ࠬ஢;
        32(R3) - . 4  -   (0-15.),
                 . 4  - 0-3   ஦;
        33(R3) - 4-11   ஦;
        34(R3) -  ਢ (0-124.).
      饭  ᪮ ந ଠ஢  -
饩 ஦  ⥪饩 ஭.     믮  
'䨪 ஦'.

160016  窠 室  ७ 䬥⨪
     㫨  EIS: MUL, DIV, ASH  ASHC.
     ⮡  ,    砫  -
 10(8).  뢠  १ࢭ  ந室  -
饭  . ᫨  ,  맢襩  뢠,  
    襯᫥ , ந室 -
室   4  ⠭ ⮬ C (⠭ RT11),  
- 믮 ணࠬ  .
       祭 짮⥫᪮  ࠩ
७ 䬥⨪ (. ).


                

     ᪮  ᯮ  ᠬ  170000-176777.  
ࠡ  ࠩ ᯮ ᫥騥  :

HD$TRK (176776) - ᫮ ஦ ;
HD$HEA (176774) - ᫮  ;
HD$SEC (176772) - ᫮ ᥪ஢  ஦;
HD$LOG (176770) - ᥣ ᪨ ᪮  (1-124.),    襬
                   -  ਢ,  ண ந
                  㧪  㬮砭;
HD$SPD (176000) - ਧ 襭 ᪮   -
                   (४    ᮢ६  ,
                  蠥 ᪮ ⥭/   2    
                  ࠧ,   ⢨    ⮢
                   ⥭ ᥪ;   ⥫  -
                   ਢ  ᡮ   ଠ樨!, -
                  ⮬ ᭠砫 ப    ᯥ樠-
                  ⠬), ਧ  ⠭,  ᫨  祭
                  ⮩ 祩 ࠢ 125252;
HD$USR (175776) - 㪠⥫  砫 ࠩ 짮⥫;
HD$EIS (175774) - 㪠⥫  砫 짮⥫᪮ ࠩ
                  ७ 䬥⨪ (ࢮ   ࠩ-
                     NOP, ࠢ । 
                  JMP @175774);

      ࠧ  稭    176766    
⥪  ( ).        ᪮
᪥  2 ᫮   ᫥騩 ଠ:
     ᫮  訬 ᮬ ᮤন   ஦    
砫 ᪮ ᪠ (. 4  -  ,  ⠫
12  -  ஦). ᫨  ᫮  ⥫쭮  (
 COM),  ⠥ ⠭      ⪥
 뤠 訡 1.   訬 ᮬ ᮤন 
᪮ ᪠   (ᨬ: 65535  - 32 ).
      ᫮, ᫥饬  ᫥   ⠡  ࠧ,
室 CRC ⠡ ࠧ   䨣樨.

       ࠩ  ।ᬮ७   ⠡  ࠧ-
.  饩 ᮢ⨬  ᫥騬 ﬨ  ४-
 짮 ,         -
⥫쭮 . ⠪:
     ᫨  맮 160004 ( 160006  ࠡ⠥!) 㪠  
R1 ᫮ ᫮  뫪 ࠢ , ࠩ   ᫥-
 ଠ: R0 - ࠧ  ᪮ ᪠   -
 ( ਢ   34(R3)); R1 -  ஦/-
 砫 ᪮ ᪠  ଠ, ᠭ ;  
, 稭    R2 (᫨ R2  ࠢ ) ।-
 ᫥饥:

     饭   ন
        0       ᫮ ஦ ;
        2       ᫮  ;
        4       ᫮ ᥪ஢  ஦;
        6       ᫮ ᪨ ᪮.

     ஬ ⮣,  न (஦, ,  ᥪ-
) ,   㪠  R0  室. ᫨    
室  । ᪮ ᪠,  न
᫥ 㯭   ᪠. ᫥ ࠬ
  ᮮ⢥饥   ࠬ஢ (.  -
 窨 室 160006). ᫥ 믮 樨 R2 .

      !  祭 ࠩ  짮⥫
 㭪  ࠡ⠥, ᫨ ᫥ , 筮,  믮-
.

      㦥 㦤 ⢮ 㫥 ஭  (  0)
㫥 ஦.  7  ⮩    ᭮
稪  (Master  Boot  Record  -  MBR),      
㧪     뢠          10000  
᪠, ᫨  ࢠ  - NOP.
      १㧪   뢠    -
 ⠡ ࠧ,  䨣樨  ஢  CRC.
      ᥤ쬮  (쬮 ᥪ)  ࠭    
 176000-177000.


                        

      㧪 ᫥騩:
     1. ᫨  祭,     㧪  (  ..  
        ᪮)   176000 뢠 8- ᥪ.
     2. ஢ CRC. ᫨ 㦭,  䨣 뢠
         ᯮ ,  ⠡ ࠧ 樠.
     3. 믮 ணࠬ  ⥫   "-
        樠 ࠬ஢".
     4. ᫨  ਢ    㪠  ,    
        ਢ  㬮砭 ( HD$LOG+1). ᫨   ⮣  
        ਢ  2,  ந  室    ⠭⭮
        㧪.
     5.   10000  뢠  MBR  (ࢨ筠  㧪).
        ᫨  ࢠ  - NOP,  ࠢ  ।
          (CALL @#10000); MBR, ந  室  -
        ⢨ (ਬ: ४䨣     㦥
        ଠ樥, ⠭ ࠩ஢ 짮⥫    ..),
        頥 ࠢ ࠩ ( RTS PC).
     6.  ᭮    1000 뢠 㫥 
        ன⢠  ஬  34(R3)   㧪  த
         ⠭⭮  ࠩa ᪮  (筠
        㧪).

      砥 訡 㧪 த  ᪮ A    B,
᫨ 㧪 ⮬᪠, ,  ⨢ 砥, ४-
.


               

     砥 ࠩ 짮⥫  ᯮ  -
  . ⮡  , 室   175776
   砫. ࢮ  ࠩ   
NOP,  :
        1) 窠 室  160004;
        2) 窠 室  160006;
        3) 窠 室  160012.
     ।,  ࠩ  ⥬    -
஢,   .
     ࠢ ࠩ 짮⥫ । ࠧ   ᫥
맮  ࠩ,  ⢨  ࠡ⪥ ࠬ-
஢  ந,  ਢ  , ஫쭠
㬬  ⠥.
     ࠩ 짮⥫ 頥 ࠢ  ,  -
 訡  室   ࠬ஢ (57(R3)).  
訡 ⠭,  C ஫  ࠥ. ࠢ   -
 ᪮쪨 ᯮᮡ:
     1. RTS PC  -     ࠢ,  ᫥  ண
ந室 室   ࠩ  ⠭  C   -
 訡, ᫨ 57(R3) ᮤন 㫥 祭;
     2. ADD #2,@SP
        RTS PC  - ࠢ । ࠩ   (-
).
     3. ADD #6,@SP
        RTS PC  - ࠢ ।   ࠩ,  
 ࠩ 짮⥫  祭;
     ᫨ RTS PC   JSR PC,@(SP)+ (⢥,   -
 砥 ⮣   ᫥),  ࠢ   ࠩ஢
᪮   㤥,   砭,  饭    ࠩ
짮⥫.
      ⥬ 砥 ࠩ஢    -
 㭨 ࠩ   !
     ਬ,  "⪫" ᪮, "६⨢"  -
᪨ ᪨  (⮡  "ய" 㪢, ᫨  ࠡ-
  ᪮);  ᤥ ""  ࠡ    -
஭ ᪮.
                 . 170000-175770

       ࠡ ணࠬ   ⪨  .
 ᢮   ந쭮 ᫥⥫쭮.   ᪮-
䫨⭮ ࠡ  ணࠬ  室  ਤন  ᫥
ॡ:

     - १, ࠧ頥  . ,   ६頥-
       묨;
     - ணࠬ, ன 室  ⮪  .  ,  
       墠뢠 ᢮ , 稭  ࢮ    ᢮-
        祩. ࢮ ᫮ ᢮ ⪠ ࠢ 0;
     -  ࢮ  ᫮    ⪠  뢠  
       ⮣ ⪠  ,  祩  ⨬ ⪮  -
        0.    ண  ᫮  ⪠  稭  ᯨ᮪
       ᮢ  祥-㪠⥫,  १     ந
           ,  ᯨ᮪  稢
       㫥.  ᫥饣  ᯮ ⥫  १-
        ணࠬ.

       砥,  ᫨  -  ணࠬ  㤥  ᢮
⮪ .   ᬠਢ,    㤥  -
   ᯮ  १,   ।  ⨬
 稭 ᬥ饭  ᮤন    祥-㪠⥫,
  室  ᯨ᪥ । ⥫  १.

                        :

170000: .WORD   TOP1-170000
        .WORD   ANDOS+654,0     ;,  ਬ
         ...

TOP1:   .WORD   TOP2-TOP1       ; ࠩ 짮⥫
        .WORD   JMP2TO1,0
        ...
START1: ...
        RTS     PC

TOP2:   .WORD   TOP3-TOP2       ;ࠩ .,⠭. 
        .WORD   HD$USR          ;=175776
        .WORD   TOP1+2,0
        ...
START2: ...
        JMP     @(PC)+
JMP2TO1:.WORD   START1

TOP3:   .WORD   0

HD$USR: .WORD   START2

      ⮬ ਬ ᫥, ਬ,  २  ᪨
᪮ ࠩ஬-2 ( 뢠 㦭  ⫨ ணࠬ
२뢠 ᪨  A:  B:),  ࠢ  㤥  ।
ࠩ-1,  ।祭 ண   ࠩ-2  ᪮॥
ᥣ  ⭮. 祬  ⠢ 㤠 㤠 ࠩ-2
 ᪮४஢ HD$USR...


                           

                 IDE-

      ᨣ IDE-䥩  TTL-ᮢ⨬묨.
     I/O 㪠뢠 ࠢ ᨣ.  "I" 砥 室 -
 ᪠, "O" - 室. , 稭騥  "/",    -
 ஢  ᢮ ⨢ ﭨ.


  N      ᨣ  I/O              ᠭ
⠪⠳             

2,19,22,  GND              騩 ஢.
 24,26,              
 30,40               

   1      RES     I            .

 18,  3  D15,D7  I/O       㭠ࠢ 設   
 16,  5  D14,D6  I/O  ஬   ⪨ ᪮  -
 14,  7  D13,D5  I/O   ,  ଠ樨  ﭨ  
 12,  9  D12,D4  I/O  ࠢ饩 ଠ樨.   ४-
 10, 11  D11,D3  I/O     ᮪  ﭨ,  ᫨
  8, 13  D10,D2  I/O  ⪨   ࠭.
  6, 15  D9, D1  I/O 
  4, 17  D8, D0  I/O 

   20                       ⠪.  ᯮ 
                      ⢥    ⨢ ॢ稢
                      .

   21                       ᯮ.

   23     /IOWR   I            ᮢ  ⮢
                      -뢮.

   25     /IORD   I         ⥭   ᮢ  ⮢
                      -뢮.

   27   /IOCHRDY  O          㯥    ⪮
                            ,  
                       ᨣ ⠭ ⨢ ( -
                       ⮢⥫  ᯮ).

   28     /ALE    I        Address Latch Enable:  ᯮ-
                         ⥫  (-
                        ᭮ ᮢ⨬).

   29                       ᯮ.

   31    /IRQ14   O        Interrupt Request: ॡ -
                      뢠  .

   32     /IO16   O        ⥫    16-  ।
                      .

   34     /PDIAG I/O       Passed Diagnostics: Slave- -
                      頥   Master-,    ࠡ⠫
                      ७ ⨪  (  
                       ⥫).

   33       A1    I           롮 ॣ஢.
   35       A0    I  
   36       A2    I  

   37      /CS0   I        Card Select: ᨣ 롮 ॣ-
   38      /CS1   I   ஢ ⥫.

   39      /ACT  I/O        ࠢ ᢥ⮤, ⮡
                      㪠뢠 ⨢ ⥫.



            / IDE-

        
         롨ࠥ  /CS0 /CS1  A0   A1   A2
        
             177756        0    1    0    0    0
        
             177754        0    1    0    0    1
        
             177752        0    1    0    1    0
        
             177750        0    1    0    1    1
        
             177746        0    1    1    0    0
        
             177744        0    1    1    0    1
        
             177742        0    1    1    1    0
        
             177740        0    1    1    1    1
        
             177743        1    0    1    1    0
        
             177741        1    0    1    1    1
        

: 0 -  ஢ ᨣ, 1 - ᮪.


                  IDE

     ᫥  饣 殮      ⨢樨
䥩᭮ ᨣ /RES, 奬  ⥫   ᨣ-
 RESET   ࠢ騩  ய,    ࠡ뢠
᢮ யணࠬ, 樠 ﭨ ⮢ /뢮-
 (- ⮣,  ࠢ, ⠭ 诨 -
⥫),  頥  ࠡ    ,  ணࠬ  -
⠫ ப஫   ணࠬ㥬 奬 -
室騥  ७ 設  . ᫥ ⮣  ࠢ-
騩 ய 訢 ७ ᨣ ࠡ  -
⥫   ᨣ   诨쭮 ⥫. 騩
⠯ ࠡ யணࠬ - ஢ ७   ,
 ஬ ஢:   , ⠫ -
ப஫  ﭨ 室  ᨣ  ப஫  
஭  . ᫥ ⮣ ࠢ騩 ய, -
 ਮ ᫥ ᮢ , ,   诨-
 ⥫    ⮢ ,  ⮫쪮 
ந, ய, ࠢ 奬  樮஢  
⠫ ப஫஬, ६頥   
   ᠭ 㦥 ଠ  뫠     -
୮   쭥襩 ࠡ. ᫥ ⮣ ࠢ騩 -
 ⠭  DRDY  DSC, 뢠    BSY  
ॣ ﭨ ,    ॣ  訡  뫠  
"訡  㦥" ( ॣ 室   -
쭮 ப஫). ⥫  ⠪ ﭨ   -
室 ᪮ 㣮  ,   ந   
ॣ .
    ࠢ  IDE ந   ணࠬ  -
㯭 ॣ஢ 177740-177756, 177741  177743  ஭  -
. ।   室 ஢  BSY  -
 ﭨ ,    襭. ᫥ ⮣  -
⠢ ⠪ 뢠 䠩  -   ॣ-
,    믮塞  (ॣ  ᥪ-
, ॣ ⥫/  ..)   ॣ 177740  -
뫠 .
    ᫥   ॣ  ⠫  ப஫-
 ନ  뢠   ࠢ饬  ய
MCINT (Micro Controller Interupt)  ᫥   IRQ14. -
ࠡ뢠 楤 뢠, ࠢ騩 ப஫  -
⥫ ⠭  ॣ ﭨ   BSY, -
   ᮤন ॣ . ᫨  訡筮
뫠   ,   ॣ  訡  -
  ABRT,   ॣ ﭨ ⠭ 
ERR  뢠  BSY, ᫥ 祣  ⮢  ਥ  ᫥-
饩 . ᫨   ᯮ,  ࠢ騩  -
ய 뢠  ப஫ ᮤন  ॣ஢,
  믮    ࠢ  ।
 楤 ࠡ⪨ ⮩ ,  襭 ன -
뢠  BSY ॣ ﭨ.      訡
⥫쭮 ନ ॣ 訡   ⠭  
ERR  ॣ ﭨ.


                           

1. ..稭,  ..㪨 "᪮  ⥬  IBM-ᮢ⨬
   ᮭ ஢", .:  "", 1993.

2. .஧,  .⥫ "B IDE AT,  ⨪ 
   ६".
