
 10  樠
-----------------------------------------------------------------

 i486  室 ४, 뢠 RESET, १
 ᪠ 樠  ⥬.  
ᨣ   ४  ॣ  i486
⠭    ﭨ.  
ﭨ, ਬ, ﭨ ॣ EIP,  
ࠡ ணࠬ ᯥ祭 .  ணࠬ
ᯥ祭  ந    , ਬ,
⠡ GDT  IDT, ᯮ㥬  ⥬  ਪ
ணࠬ ᯥ祭.

⭮ ᯥ祭  ᨣ RESET  祭 ⠭
⥬. ⭮  ᨣ     㣨
ᯮᮡ. ਬ,  稥 ᯥ樠쭮  
믮 樠樨  .    ⠪
믮  ᯥ祭  ⢥  祭 ᨣ 
宦  ० ⠭   ⥬.

᫥ 樠樨  ॣ DH ᮤন ᫮,
饥 ⨯ .  ꥪ  
 ᤥ ᮢ⨬  稬 ࠬ Intel ⥬
ᯮ짮 ⮣ ᫠  롮 ࠢ쭮 ணࠬ
ᯥ祭 樠樨. ⬥⨬,   i486 
᪮쪮 ࠡ ०.  稭 ࠡ  ०,
㫨饬  8086,  뢠 ० ॠ쭮
樨. ᫨  ᯮ짮 饭 ० (०, 
஬ 㯥  32-ࠧ來 ),  ணࠬ
ᯥ祭 樠樨  ⠭  ० 
ॣ CR0.

10.1  ﭨ  ᫥ 
-----------------------------------------------------------------

 祭 ⠭   襭 ஢.
 ஢ 믮 १ 室 AHOLD  
஭ ᨣ RESET. ⢥⢥   ஢
  ࠧࠡ稪 ⭮ ᯥ祭 ⥬. 
롮 ஢    2**20 ⠪⮢ ਮ.
(Intel ⠢  ᮡ ࠢ  ᫮ ⠪⮢ ਮ
஢  ।०).

᫨  i486 襫  ଠ쭮,  ॣ EAX
頥. 㫥 祭 ॣ EAX ᫥ 襭
஢ 㪠뢠  ࠢ . ᫨
஢  訢, ᮤন ॣ EAX ᫥
樠樨   । (,
-㫥).  DX ᫥ 樠樨  ᮤন
䨪 ⨯    ᨨ , 
  㭪 10-1.  DH ᮤন ᫮ 4,
饥  i486.  DL ᮤন 㭨
䨪  ᨨ.

ﭨ ॣ CR0 ᫥ 祭 ⠭  
㭪 10-2.  ﭨ ⠭   ०
ॠ쭮 樨   ⪫祭 堭 窨
࠭.

᫥ 祭 ⠭ ﭨ ॣ஢ EBX, ECX, ESI, EDI,
EBP, ESP, GDTR, LDTR, TR, ⫠ ॣ஢ (஬ DR7) 
⥪  ࠭  饩 窮 ।. ணࠬ
ᯥ祭     । - 
 ॣ஢. ﭨ 䫠  ⠫ ॣ஢ ᫥
祭 ⠭    10-1.


|<----------------------  EDX  ------------------------->|

                               |<------  DX ------------>|

31                           16 15           8 7
-----------------------------------------------------------------
|                              | 䨪 |           |
|      ࢨ஢           |   ன⢠  |       ᨨ   |
|                              |               |      |
-----------------------------------------------------------------

       㭮 10-1. ন ॣ EDX ᫥ 



   --------0 襭    -------0 ஫ ࠢ ⬥
  |          窠    |
  |          ࠭     |     --0    ⬥
  |   -----0 襭   |    |
  |  |       ஢ |    |
  |  |   --0 襭   |    |
  |  |  |          |    |
 31 30 28               18   16                 5  4  3  2  1  0
-----------------------------------------------------------------
| P| C| N|             | A| | W|              | N| E| T| E| M| P|
|  |  |  |             |  | |  |              |  |  |  |  |  |  |
| G| D| W|             |  | | P|              | E| T| S| M| P| E|
-----------------------------------------------------------------
                                                |  |  |  |  |  |
                                                |  |  |  |  |  |
0 譥 ᮮ饭  訡  饩 窮   |  |  |  |  |
                             0 ( ᯮ)---   |  |  |  |
                       0  ४祭  -----   |  |  |
        0  ESC  㦨 誮---------   |  |
       0  WAIT  㦨 誮------------   |
                                0  ०---------------

       㭮 10-2. ন ॣ CR0 ᫥ 

⬥⨬,    ᥣ ॣ஢ CS  DS
樠 祭ﬨ, 騬  믮,
ᬮ  ,   ᥣ  뫨 ।. 
  ᥣ ⠭  64  設
䨧᪮ ᭮ ࠭⢠,    
⨢  ணࠬ ᯥ祭 樠樨.
  ᥣ⮢  ⠭   
䨧᪮ ᭮ ࠭⢠ ( 0),  稭
⨢ .  ।࠭  ᮢ 
, 㦠 ᥣ ॣ,   믮
  ,   㤥 । ⠡ ਯ஢,  
   ࠭ 㦥  ॣ GDTR. ᫨ 
ॠ쭮 ० ந १㧪 CS,   ॣ
㤥 㪠뢠  訩  䨧᪮ .

10.2  ணࠬ 樠  ० ॠ ᮢ
-----------------------------------------------------------------

᫥ 樠樨  ணࠬ ᯥ祭 ⠭
 , 室   믮 
⥬ 㭪権, ⠪  ࠡ⪠ 뢠. ᫨
 ⠥  ० ॠ ᮢ, ணࠬ
ᯥ祭 ࣠    ଥ, ᯮ㥬
஬ 8086. ᫨   ࠡ  饭
०,  ணࠬ ᯥ祭 ࣠   
ଥ, ᯮ㥬 ࠬ 80286  i486,  ⥬
४砥 ०. . 㭮 10-7,  ਢ ਬ.


    10-1. ﭨ  ᫥ 祭 ⠭

-----------------------------------------------------------------
                             ﭨ (⭠筮)
-----------------------------------------------------------------
   EFLAGS                           00000002H  1)
   EIP                              0000FFF0H
   CS                               0F000H  2)
   DS                               0000H   3)
   SS                               0000H
   ES                               0000H   3)
   FS                               0000H
   GS                               0000H
   IDTR ()                      00000000H
   IDTR (࠭)                   03FFH
   DR7                              0000H
-----------------------------------------------------------------
         権  饩 窮  4)
-----------------------------------------------------------------
    ࠢ                 037FH
    ﭨ                  0000H
    ⥣                       0FFFFH
   饭 IP                      00000000H
   饭 ࠭          00000000H
    CS                      0000H
    ࠭                0000H
    樨                     000H
-----------------------------------------------------------------

ਬ砭:  ।  १ࢨ஢. ணࠬ
ᯥ祭     ﭨ -  
⮢.

1. 訥 ୠ ⮢ ॣ EFLAGS ᫥ 祭
   ⠭  ।.   .

2.   ॣ CS ᮤন   0FFFF0000H
    ࠭ 0FFFFH.

3.   ॣ஢ DS  ES ᮤন   0 
   ࠭ 0FFFFH.

4.   権  饩 窮 
   樠  ᪠ ஥ ஢.


10.2.1  ⥬ ⠡
-----------------------------------------------------------------

 ० ॠ ᮢ ਯ ⠡  ᯮ.
 ஢ 뢠, 稭   0, 
 㦥 㪠⥫ﬨ  ࠡ稪 ᪫祭 
뢠, ० 祬  뢠   ࠧ襭.
᪨㥬 뢠 ࠧ襭 ᥣ. ᫨ ⠡ ஢
뢠  ࠡ稪 ᪨㥬 뢠 ॡ
㧪  ⨢ ,  㤥 ⢮ 
ਮ ६ ᫥ 樠樨 ,  祭 ண
᪨㥬 뢠    ࠡ⠭.

10.2.2  ᪨㥬 뢠
-----------------------------------------------------------------

⭮ ᯥ祭 ॠ 堭, ।騩
 ᪨㥬 뢠  ,  ணࠬ
ᯥ祭    ࠡ. ਬ, ⠡ ஢
뢠  ࠡ稪 ᪨㥬 뢠 
室  .   믮 ࠡ
᪨㥬 뢠 ।⢥ ᫥ 樠樨
. 㣮 襭 ⮨  ⮬, ⮡ ᯥ 堭,
।騩 ᨣ ᪨㥬 뢠 १  ,
ࠢ塞 ⮬   /뢮. ⭮ ᯥ祭
      ,  ணࠬ
ᯥ祭  ⠭ ,  㤥 ⮢ 
ࠡ⪥ ᪨㥬 뢠. ࠡ稪 ⥬
ணࠬ ᯥ祭   堭, ᯮ㥬
 ᯥ祭   ணࠬ ᯥ祭 
᪨㥬 뢠 ᫥ .

10.2.3  ࢠ 
-----------------------------------------------------------------

믮 稭 , 㥬 室 ᮤন
ॣ஢ CS  IP. ⮡ ࠧ ணࠬ ᯥ祭
樠樨    孥  ᭮ ࠭⢠,
訥 12 ⮢ ᮢ, 뤠   ᥣ,
⠭,   㤥 믮 ࢠ ,
㦠 ॣ CS, ਬ 쭨 室  맮. 
१ 롮ઠ  稭   0FFFFFFF0H.
᪮ ࠧ  ⥭,  ࢠ  ࠧ㬥
室  砫 ணࠬ ᯥ祭 樠樨. ᫨
  ᯮ짮 饭 ०,    
室  ॠ쭮 ०,   । -१⭮
ணࠬ ᯥ祭  믮 ⮫쪮 
室. ᫥ 믮 쭥 室 , 뤠 
 ᥣ,   12  ⮢.

10.2.4  襭 ஢
-----------------------------------------------------------------

஢ ࠧ蠥  ⪥ ⮢ CD  NW  ॣ
CR0.  ﭨ  ⮢ ᪠ 横 ஢,
᪢   㫨஢ . ᪮  ப 
᫥ 樠樨  ⮢, । ࠧ襭
஢    易⥫쭮.

 ,  ப    祭 
⮢, । ࠧ襭 ஢  
ࠧ ஢.     १ ᯮ짮
⮢ ॣ஢  믮 蠡 ஢ 
ᯮ짮 -  ⢥  ⮢  ६
ணࠬ 樠樨.

10.3  ४祭  饭 ०
-----------------------------------------------------------------

। ४祭  饭 ०   ᮧ
   ,  ⠪  
樠஢ 쭮 ⢮ ॣ஢.

10.3.1  ⥬ ⠡
-----------------------------------------------------------------

 ⮣, ⮡ ணࠬ ᯥ祭 饭 ० 
  ணࠬ  ,   ᮧ  
 ਯୠ ⠡, GDT,   ਯ. ਯ
室   ᥣ  ᥣ . ⥪ 
 饭  筮 ᥣ   㯮 
⥭/,  ᯥ樠쭮 ਯ  ⥪ ⮣ 
ॡ. ० 祬 GDT   ᯮ짮,  
 ࠭  GDT   㦥  ॣ GDTR 
  LGDT.

10.3.2  ᪨㥬 뢠
-----------------------------------------------------------------

᫨ ⭮ ᯥ祭   ᪨㥬
뢠, ॡ ᮧ IDT    ࠡ稪
뢠. ० 祬 IDT   ᯮ짮,  ॣ
IDTR    LIDT   㦥  
 ࠭ IDT.

10.3.3   PE
-----------------------------------------------------------------

室  饭 ० 믮 ⠭  PE 
ॣ CR0.  ⠭ ⮣    ᯮ짮
 LMSW  MOV CR0 (ॣ MSW   ॣ
CR0). ᪮ 樨 ᪮쪨   i486
४뢠, 室 ⬥ ,  㦥 뫨
⠭ ஬.  JMP ।⢥ ᫥ 
LMSW  ᫥⥫쭮 믮,    
䥪,   饭   ࠭ 
஢ .

᫥ 室  饭 ० ᥣ ॣ ࠭
ᮤন, ஥    ० ॠ ᮢ.
ணࠬ ᯥ祭  १㧨  ᥣ
ॣ. 믮  饭 ० 稭  CPL
ࠢ 0.

10.4  ணࠬ 樠  饭 ०
-----------------------------------------------------------------

 , 室  饭 ०, ।
ᯮ㥬묨 ᢮⢠ ࣠樨  .
 ন  ᥣ樨   
⢥, ࠢ  ࠭⢮ (᪠
)  ᮪஢   ᪮쪨
ᨬ묨, 饭묨 묨 ࠭⢠  
 (ᥣ⭠ ). 窠 ࠭ 
   訬 ࠬ , 筮
室騬  ,  筮  ᪥.   
࠭樨  ॡ  , ⠭
樮 ⥬  ᯮ㥬  ᯥ祭,
⢥騬  ࣠ .

10.4.1  
-----------------------------------------------------------------

᪠   窨 ࠭ ॡ ⮫쪮 GDT  
ਯ஬  ᥣ   ਯ஬ ᥣ
. ᪠   窮 ࠭ ॡ ਯ஢
    ० 㯥ࢨ,  㣮 
ਯ஢     ० 짮⥫.  
ॡ ⠫ ࠭     ⠡ ࠭
ண ஢.

ᥣ⭠   ॡ ⥫
ᥣ⮢  樮 ⥬,  ⠪ ᥣ⮢  ⠡
LDT   ਪ ணࠬ. LDT ॡ ᥣ
ਯ஢  GDT. 設⢮ 樮 ⥬, ⠪ 
OS/2, ।  ᥣ  LDT   室.
 ᯥ稢 ᨬ   ࠡ⪥
᪮ ணࠬ ।, ਬ   ࠡ
⠭権. ⥬, ⠪  ⥬ ࠢ ᠬ, 
।। 䨪஢ ᫮ ᥣ⮢  LDT 
䨪஢ ᫠ ਪ ணࠬ.  ⮩ 
䥪⨢ ᯮᮡ ஢ ணࠬ । ⥬,
ॡ饩 襣 த⢨  ० ॠ쭮 ६.

10.4.2  窠 ࠭
-----------------------------------------------------------------

 ⫨稥  ᥣ樨, 窠 ࠭ ࠢ ⮬
०. ᫨  PG  ॣ CR0 饭 (  ﭨ
᫥ 樠樨 ), 堭 窨 ࠭ 
㡨ࠥ  ⥪ ⥬,  ணࠬ.

᫨  PG ⠭,  窠 ࠧ襭.   
 ⠭    MOV CR0. । ⠭
 PG   믮 ᫥騥 ᫮:

- ணࠬ ᯥ祭 ᮧ   ࠭
  ⠡, ⠫ ࠭     ࠭ ⠡
  ண ஢.

-  ॣ PDBR ( ,   ॣ CR3) 㦥 
   ⠫ ࠭.

-  室  饭 ० ( ० ॠ
  ᮢ 窠 ࠭  ࠡ⠥). ᫨  稥
  ࠭祭 믮,  PG  PE   ⠭
  ६.

    PE,  ⠭  PG  
᫥  JMP. ஬ ⮣, , ⠭騩  PG,
 室  ࠭  ⥬  䨧᪨ ᮬ, ᫥
⮣,  窠 ࠭ ࠧ襭.

10.4.3  
-----------------------------------------------------------------

᫨ 堭 ⨧筮  ᯮ,  樠
ॣ TR  易⥫쭠.

᫨ 堭 ⨧筮 ᯮ,   ᮧ
TSS  ਯ TSS  ணࠬ ᯥ祭 樠樨.
ਯ TSS       ᮧ:
ਯ TSS   祭   ⮫쪮 
⢥ 筮 䥪  믮 ४祭 .
   砥 ਯ஢  LDT, ਯ  TSS
ᯮ  GDT.  LTR 㦨  㧪 ᥫ
 ਯ TSS ணࠬ ᯥ祭 樠樨 
ॣ TR.   砥 ਯ TSS  ,
  믮 ४祭 .   
㦥  믮 ࢮ ४祭 , ᪮
४祭   ﭨ ⥪饩   TSS.
᫥ ᯮ짮  LTR ᫥騥   ॣ஬
TR 믮  ४祭 .    砥 ᥣ⮢
 LDT, TSS  ਯ TSS  ।  ࠭,
⠪  ᪨  室.

10.5  ஢ TLB
-----------------------------------------------------------------

 i486 ᯥ稢 堭 ஢ 樠⨢
 ࠭樨 (TLB), , ᯮ㥬  ࠭樨
 ᮢ  䨧᪨.  ᡮ  ⭮
ᯥ祭 TLB ࠩ ⭮, 짮⥫  
  TLB  ᫮  ⮢ i486, 믮塞 
祭 ⠭.

ਬ砭:  堭 ஢ TLB 㭨 
 i486     ஢  
 ⠪ . ணࠬ ᯥ祭, ᯮ饥 
堭,   ᮢ⨬  騬 ࠬ.

10.5.1   TLB
-----------------------------------------------------------------

TLB ।⠢ ᮡ - 樠⨢ .
    㭪 10-3.    室
ᥬ ஢      . 
  TLB ⮨  20 ⮢ 襣 浪 䨧᪮
.  20 ⮢  ஢   
࠭,   ।  12 饭 ⮢
襣 浪.

TLB ࠭᫨    䨧᪨  ࠡ⠥ ⮫쪮 
訬 20 ⠬   ; 訥 12 ⮢
(।⠢騥 ᮡ ᬥ饭  ࠭)   
 , ⠪   䨧᪮.

 ⮢  ᮮ⢥  ⮢
⮢୮, ਡ⮢  ⥣ (ਧ).  ⥣
⮨  17  ⮢  .  ࠭樨
  ᯮ  12, 13  14  
 롮   쬨 ஢,  ⥬ ஢ 
⥣  ⮣   ᮮ⢥⢨ 訬 17 ⠬ 
. ᫨ ᮮ⢥⢨  । ⥣ ࠭ ,
 ᮮ⢥騩  ⮢୮ ࠢ 1,   
࠭᫨   20 ⮢  20 ⮢
ᮮ⢥饣  .

      ⮢୮,                          
     ਡ  ⥣                            

LRU  0123           0123
---  -------------------------          -------------------------
| |  |     |     |     |     |    0|     |     |     |     |
|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
| |  |     |     |     |     |    1|     |     |     |     |
|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
| |  |     |     |     |     |    2|     |     |     |     |
|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
| |  |     |     |     |     |    3|     |     |     |     |
|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
| |  |     |/////|     |     |<-->4|     |/////|     |     |
|-|  |-----|-----|-----|-----|  |       |-----|-----|-----|-----|
| |  |     |     |     |     |  | 5|     |     |     |     |
|-|  |-----|-----|-----|-----|  |       |-----|-----|-----|-----|
| |  |     |     |     |     |  | 6|     |     |     |     |
|-|  |-----|-----|-----|-----|  |       |-----|-----|-----|-----|
| |  |     |     |     |     |  | 7|     |     |     |     |
---  -------------------------  |       -------------------------
                                |                   ⢥
⢥ 客     \                  客
   㭪           \                  
-------------------------------    --------------   -------------
|⮢୮|ਡ|   |    |롮 |   |     |
-------------------------------    --------------   -------------
    1       3    \ 17   \   |    3   /     20 ⮢
                         \⮢ \  |           /    |           |
                          \31  15\/14      12 /      31       12
                           ------------------       -------------
                           |      |         |       |           |
                           ------------------       -------------
                                         ᪨
                                                         

       LRU =  ਧ      ᯮ짮  
              ⬠ "㤠 ਪ".

                  㭮 10-3.   TLB

  ᮮ⢥   LRU:  ᫥
ᯮ㥬     ஢  室 
  ( ⠪ ᫥  ⮢୮  ⮢
 ). ᯮ   ᥢ-LRU.

10.5.2  ⮢ ॣ
-----------------------------------------------------------------

 楫 ஢ 㦠  ⮢ ॣ, 
  㭪 10-4.  TR6  
ॣ஬ ஢ TLB,  ॣ TR7  ॣ஬
 ஢ TLB.    믮 ।⢮
ࠧ⥩  MOV.  MOV ।   ०
ॠ ᮢ, ⠪   饭 ०. ⮢ ॣ
⭮  ਢ஢ ᠬ ⥬:  饭
०  MOV, ᯮ㥬  㯠  ,  
믮 ⮫쪮  ஢ ਢ஢ 0 (
ਢ஢). ⪠ ⥭    ⮢
ॣ  㣨 ஢ ਢ஢ 뢠
᪫祭 饩 .

 ⫨稥  TLB  386 DX,   TLB  i486
  ⪫祭 堭 窨 ࠭. , 
⫨稥   386 DX, TLB  i486 ᯮ 
롮 ⮢,   㤠  ,  㦭
।    ,  TLB ,
   ᥢ-LRU.

 ॣ ஢ TLB (TR6) ᮤন   
 ⥣:

- C.    (Command).   
  ஢ TLB:  ⮢  TLB  믮 ᪠ 
  TLB.  믮    TLB  
  ᫮  ॣ TR6, ᮤঠ騩 饭  .  ᪠
  (⥭)  TLB   ᫮  ॣ TR6,
  ᮤঠ騩 ⠭  . 樨  TLB ᪠ 
  믮   ॣ TR6.

-  .    TLB  TLB । 
    ; ⠫쭠   TLB
  砥  ᯮ짮 祭 ॣ TR7  祭,
  ⮫쪮  ᠭ  ॣ TR6.  ᪥  TLB 
  祭 ᯮ  ; ᫨ 㦨
  ᮮ⢥⢨   ⮫쪮   TLB, ⠫
   ॣ஢ TR6  TR7 ⠭  ᮮ⢥饣
   TLB.

                                1 1 1
     31                         2 1 0 9 8 7 6 5 4 3 2 1 0
     -----------------------------------------------------
     |                           |P|P|     |   | | R |   |
     |      ᪨      |C|W|L R U|0 0|P| E |0 0| TR7
     |                           |D|T|     |   |L| P |   |
     |---------------------------------------------------|
     |                           | | |D| |U| |W|       | |
     |              |V|D|#|U|#|W|#|0 0 0 0|C| TR6
     |                           | | | | | | | |       | |
     -----------------------------------------------------

               㭮 10-4. ⮢ ॣ TLB

- V.   砥  TLB, ᮤঠ騩 ⮢
  (Valid) .  TLB,  㦥 ⠬
  ࠭筮 ⠡,  饭  V.   V
      ॣ CR3,   䥪 ⪨,
   , TLB. NLB   ᫥ 䨪樨
  ࠭ ⠡, ᪮  ⨢ 砥
  ஢    ᯮ짮 
  ࠭樨 .

- D, D#.  D (  ).

- U, U#.  U/S (짮⥫/㯥ࢨ) (  ).

- W, W#.  R/W (⥭/) (  ).

        ⢨⥫쭮 ଥ, ⠪   
    襩   ᪥  TLB. 祭
    ⮢ ਢ   10-2.

  ஢ TLB (TR7) ᮤন , ⠭
 騥   TLB:

- ᪨ .    TLB.    TLB  
  祭 ⠭  TLB, । 
     ॣ TR6.  ᪥ (⥭)  TLB 
    㦠   (䨧᪨ )  TLB.

- PCD. ⢥  PCD  ࠭筮 ⠡.

- PWT. ⢥  PWT  ࠭筮 ⠡.

- LRU.  ⥭  TLB ᮮ⢥ ⠬, ᯮ㥬
  ⬮  ஢ ᥢ-LRU. 頥 ﭨ
  ।⠢ ᮡ 祭  ⮢ । ᪮  TLB.
  祭 ⮢    㤠筮 襭 ᪠
      TLB.

- PL.    TLB ⠭  PL ⠢
  ᯮ짮  REP ॣ TR7  롮  
   樠⨢   TLB  㧪. ᫨
   PL 饭,   롮  㦨 ७ 㪠⥫
   窨.  ७ 㪠⥫ ࠢ
  ⬮  ஢ ᥢ-LRU.  ᪥  TLB
  ( ⥭)  PL 㪠뢠  ᯥ譮 ⥭ ( PL
  ⠭)  ⢨ ᪮ ( PL 饭).

- REP.    TLB 롨ࠥ,    樠⨢
   TLB 㤥 ᯮ짮  .  ⥭ TLB 
  ⠭  PL REP ᮮ頥,    
  樠⨢    ⥣; ᫨   PL 饭, 
  ᮤন ⮣  ।.

        10-2. 祭  ⮢  ॣ TR6

-----------------------------------------------------------------
    #     䥪  ᪥  TLB   䥪    TLB
-----------------------------------------------------------------
 0      0       ᮢ                     ।
 0      1       , ᫨  饭     ⪠ 
 1      0       , ᫨  ⠭ ⠭ 
 1      1       , ᫨              ।
                饭  ⠭
-----------------------------------------------------------------

10.5.3  樨 ஢
-----------------------------------------------------------------

   TLB:

1. 諨  ॣ TR7  ᫮, ஥ ᮤন
    䨧᪨ ,  ⠪ 祭 PCD, PWT, PL 
   REP.  ⠭ 祭 PL  REP 롨ࠥ
   樠⨢ ,     饭 .
   ᫨  PL 饭,  ᯮ ७ 㪠⥫.

2. 諨  ॣ TR6  ᫮, ஥ ᮤন
   ᮮ⢥騩  ,  ⠪ 祭 ⮢ V, D,
   U  W.  C   饭.

 뢠 㡫騥 ⥣: १ ⠪ ⢨
।.

 ᬮ (⥭)  TLB:

1. 諨  ॣ TR6  ᫮, ஥ ᮤন
   ᮮ⢥騩    ਡ.    
   ⠭.

2. ⠩ ॣ TR7. ᫨  PL ॣ TR7 ⠭,
    ⠫쭠  ᮤন ॣ ᮮ頥  ᮤন
   TLB. ᫨  PL 饭,  ⠫쭠  ॣ TR7, 
   ᪫祭 ⮢ LRU, ।.

 楫 ஢  V ࠡ⠥     .
 V   ᪠ ᥣ   ⠭, 
᪫砥 ᮢ ᪠  樠஢ ⥣.
  饭  V  稨 樠஢
⥣ ।᪠㥬.

10.6  ஢ 
-----------------------------------------------------------------

 i486 ᯥ稢 堭 ஢ ,
ᯮ㥬    .  ⪠ ⭮
ᯥ祭 ஢ ࠩ ⥭, 짮⥫ 
 ஢ ࠢ   ᫮ ⮢,
믮塞 ⮬᪨  祭 ⠭.

ਬ砭: 堭 ஢  㭨  
i486    ন  筮 ᫥騬 ﬨ
஢  . ணࠬ ᯥ祭, ᯮ饥
 堭,   ᮢ⨬  ᫥騬
ࠬ  .

 믮 ஢  ᠬ ஢  
⪫祭.

10.6.1   
-----------------------------------------------------------------

 ।⠢ ᮡ 媠 樠⨢  ࠬ
 .  砥,      樨
    ᠭ     権
. 媠쭠 樠 -  ஬ 
᪮ ᪠     ⮡ࠦ  ᮪
ᮮ⭮襭 㤠 宦  ᪥  
樠⨢ .   ⢫   
  宦 , ᯥ稢  ⮬ ᮪
ய 宦   .

                                         
-        ⥣                               
୮/
LRU    0123           0123
-----  -------------------------          -------------------------
| | |  |     |     |     |     |    0|     |     |     |     |
|-|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
| | |  |     |     |     |     |    1|     |     |     |     |
|-|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
| | |  |     |     |     |     |    2|     |     |     |     |
|-|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
| | |  |     |     |     |     |          |     |     |     |     |
| | |  |     |     |     |     |          |     |     |     |     |
| | |  |     |     |     |     |          |     |     |     |     |
| | |  |     |     |     |     |          |     |     |     |     |
| | |  |     |     |     |     |          |     |     |     |     |
|-|-|  |-----|-----|-----|-----|          |-----|-----|-----|-----|
|///|  |     |/////|     |     |<-->N|     |/////|     |     |
|-|-|  |-----|-----|-----|-----|  |       |-----|-----|-----|-----|
| | |  |     |     |     |     |  |       |     |     |     |     |
| | |  |     |     |     |     |  |       |     |     |     |     |
| | |  |     |     |     |     |  |       |     |     |     |     |
| | |  |     |     |     |     |  |       |     |     |     |     |
| | |  |     |     |     |     |  |       |     |     |     |     |
|-|-|  |-----|-----|-----|-----|  |       |-----|-----|-----|-----|
| | |  |     |     |     |     |  |  |     |     |     |     |
|-|-|  |-----|-----|-----|-----|  |   126 |-----|-----|-----|-----|
| | |  |     |     |     |     |  |  |     |     |     |     |
-----  -------------------------  |   127 -------------------------
                                  |
                                  |
                                  |
-------------------  ------------ |               -----------------
|LRU|⮢୮|  |-21 | |            -->|-16 ⮢|
-------------------  ------------ |           |   -----------------
        ^                 ^             |
        |                 |      ࠢ N      |
        \/              |        롨ࠥ 
    X 1 X X               |       |           |
   ப ⮢ୠ  31  \/  11  \/       4  | 0
                     -----------------------------
                     | ⥣| |XXXX|
                     -----------------------------
                        ᪨ 

LRU =  ਧ      ᯮ짮    ⬠
       "㤠 ਪ"

                  㭮 10-5.  

 ⮨   :

-   - ᮤন  8   .  
     ᨢ,    ᮤন 128
  ப .  ப  ᮤন   16
  ᫥⥫쭮 ᯮ ᮢ , 稭 
  , ⭮ 16.  7-ࠧ來  ᨢ
    ᮮ⢥  ப ,   
   ᨢ.  ப    ᮬ
  뢠 ஬.

-  ⥣ - ᮤন  21-ࠧ來 ⥣   ப
    .  ⥣ ⠪, ᫥⥫쭮,  
   ᨢ,    ᮤন 128 ⥣. 
  ⮨   21 ⮢ 䨧᪮  ,
  ࠭  ᮮ⢥饩 ப .

-  ⮢୮  LRU ("ਧ  
  ᯮ짮, 뢠  ᪥   㤠 
  ") - ᮤন  7-ࠧ來 祭    128
  ஢ ப .   㦠  ⮣, ⮡
   ⤥쭮 ப   ⮢ 
  ⮢. ⠫   ᫥ ᯮ짮
      ஢  室 
  ப  (  ⮬    ப   
   ⮢୮).    TLB, ᯮ 
    ᥢ-LRU.

  믮 ⪬ ࠧ  28 ⮢
䨧᪮    .   21 訩 
।⠢ ᮡ  ⥣  ᯮ  ࠧ祭
஢    㣮 16-⮢ ப ,
  ࠭  ⮬  . 騥 訥 7
⮢ 뢠    । ,  ஬
 ࠭ .

10.6.2  ⮢ ॣ
-----------------------------------------------------------------

  㭪 10-6  ⮢ ॣ 㦠 
஢.  TR3  ॣ஬  ஢
, ॣ TR4  ॣ஬ ﭨ ஢
,  ॣ TR5  ࠢ騬 ॣ஬ ஢
.   ⨬ ॣࠬ 믮 ࠧﬨ
 MOV.  MOV ।   ० ॠ
ᮢ, ⠪   饭 ०. ⮢ ॣ 
ਢ஢묨 ᠬ:  饭 ०  MOV,
ᯮ㥬  㯠  ,  믮  ஢
ਢ஢ 0 ( ᮪ ஢
ਢ஢).  ⪠ ⥭    ⮢
ॣ  㣮 ஢  ᪫祭 饩 .

  ஢  (TR3) ᮤন  ᫮,
뢠    ,   ᫮,
뢠   ⥭ .   ஢ ⥭ 
    ࠭   ᫮, 
। १  ॣ    ࠧ. ⭮
 ᫮    ஢   
2-⮢  롮  ( 2  3) ॣ TR5.


                                  2 1 0 9 8 7 6 5 4 3 2 1 0
------------------------------------------------------------
|                                    |  롮      | E | C |
|        ᯮ              |       | N | T | TR5
|                                    |             | T | L |
|----------------------------------------------------------|
|                                    | |     |⮢| |
|                                 |V|LRU  |୮ || TR4
|                                    | |(RD) |(RD)   ||
|----------------------------------------------------------|
|                                                          |
|                                                    | TR3
|                                                          |
------------------------------------------------------------

V (VALID)     ⮢୮
CTL (CONTROL) ࠢ
ENT (ENTRY)   

     㭮 10-6.  ஢ 

 ﭨ ஢  (TR4) ᮤন 
⮢୮  LRU,  ⠪ ⥣:

- ⮢୮ ( 3..6).  ᪥     
  ⮢୮  ,  ஬ 믮 .

- LRU (ਧ  "㤠 ਪ").  ᪥   
    LRU  ,  ஬ ந室 . 
      :  LRU  
   ⬮   ᥢ-LRU.

- ⮢୮ ( 10).   ⮢୮  ⭮
  ,  ஬ ந室 .  ᪥   
     ⮢ 3..6.       
  ⮬ ⮢୮  ࠭   .

-  .      ,  ⠭
  ⥣.

  ࠢ騩 ॣ ஢  (TR5) ᮤন
  7-ࠧ來  롮  , 2-ࠧ來  롮
    2-ࠧ來  ࠢ:

- ࠢ. 㭪樨, ஢ ⨬ ⠬,  
   10-3.

- 롮 .  ⥭     롨ࠥ  
   ⮢  , 㥬  롮 ;
         ⥭   ⥭
   롨ࠥ     ᫮  ப.

- 롮 . 롨ࠥ   128 ஢.

   TR5  ⠭ ⮬ 0  1 뢠  
. TR5    ⠭.

10.6.3  樨 ஢
-----------------------------------------------------------------

। ஢ :

1. ⬥ ஢, ⠭  ⮣  CD  ॣ
   CR0.

     :

1. 㧨 ॣ TR5 祭  롮 , ஥
        ᫮   
   . 祭  ࠢ   ࠢ 00
   (筮).

2. 㧨 ॣ TR3 묨, 騬   
    .    ᪠  㧪
    ॣ.

3.  蠣 1  2     ⠫ 
   ᫮    .


    10-3. ஢ ⮢ ࠢ ஢ 

-----------------------------------------------------------------
 ࠢ
 1   0               ᠭ
-----------------------------------------------------------------
     00                    ⥭ 
                      ⥭ 
     01              믮   
     10              믮 ⥭  
     11                (   
                     ⮢)
-----------------------------------------------------------------

   :

1. 㧨   ,  뫮 ᠭ .

2. 㧨 ॣ TR4 ⥣ ( 11..31)  ⮬
   ⮢୮ ( 10). 稥  ॣ TR4 ( 0..9)
        .

3. 㧨  ॣ TR5 祭  ࠢ, 롮
     롮 . 祭   ࠢ 
    ࠢ 01 (筮).    ᪠ 
   㧪  ॣ.

 ⥭  :

1. 㧨  ॣ TR5 祭  ࠢ, 롮
     롮 . 祭  ࠢ 
    ࠢ 10 (筮). ⥭   ᪠ 
   㧪  ॣ. ⥭   㦠  ॣ
   TR4 ⥣  ⠭ ,  ⠪  LRU 
   ⮢୮  ᥣ ⠭ . 뢠 
   㦠  ⥭  128 ⠬ .  
    ⠭   ᫥饩 楤:

 ⥭   ⥭ :

1. 㧨 ॣ TR5 祭ﬨ  ࠢ  롮
   . 祭 롮     
    ᫮   ⥭ . 祭   ࠢ
     ࠢ 00 (筮).

2. ⠩  ᫮   ⥭ , 㧨 
   ⮣ ॣ TR3. ⥭   ᪠  㧪
   ⮣ ॣ.

3.  蠣 1  2     ⠢ 
   ᫮   ⥭ .

 ⪨ :

1 㧨  ॣ TR5 祭  ࠢ.  祭
    ࠢ 11 (筮).    祭 ⠫
    ⠪ 砥 祭  . ⪠ 
  ᪠  㧪  ॣ.   LRU 
  ⮢୮ .

10.7  ਬ 樠樨
-----------------------------------------------------------------

騥 蠡 ணࠬ ᯥ稢 Intel  襣
㤮⢠  ࠧࠡ⪥ ணࠬ ᯥ祭  
i486:

; simpinit.asm
; ਬ  樠樨  ⮩ ᪮ () 
;
; ***************************************************************
;
;  2.0
; ᪨ ࠢ Intel Corp., 1988
;   蠡          ࠧࠡ⪥  ਪ/
; ⥬ ணࠬ ।  ᯮ짮 ய஢
; ᥬ⢠ Intel i486 (TM)  Intel386(TM). Intel  
; ࠧ襭     䨪樨      ᯮ짮   
; 蠡  室.
;
;
; ***************************************************************
;
;   ਬ    樠樨,    ॢ 
; i486, 386 DX, 386 SX  376  ० ᪮  樨.
;   ᬠਢ     RAM.
; ணࠬ 뢠 . ந⥫ ᮧ  GDT 
;  IDT  頥   㬮砭  GDT[1]  GDT[2].
; ᫥ 室  饭 ०   믮 室 
; ணࠬ 砫 ⢨  ਪ ணࠬ  .
;         室  (  JMP)      
; ᮡ⢥   ᤥ  襬   C_STARTUP.

NAME simpstart           ;  ꥪ⭮ 
EXTERN c_startup:near    ;  ⪠ 室 ᫥ init_code

pe_flag     equ 1        ;  ⠭  PE
data_selc   equ 20H      ; ᬥ饭 _phantom_data_  GDT (GDT[4])
CODEMACRO   opprefx      ;    ࠧ ࠭
            db 66H       ;  㬮砭
EMDM

init_code   SEGMENT ER PUBLIC
; GDT_DESC  饥 ᨬ᪮ ,   ஥  뫪
;  䠩, ᮧ ந⥫. । LOCATION  ࠧ
; TABLE 䠩 ந⥫ 㪠뢠   ; ந⥫
; ࠭  ,  ࠭  㪠 ⠡  ⮩ 樨
; ⨢ .

PUBLIC      gdt_desc
gdt_desc    dp ?
; START      ⪠,   㪠뢠    ⨭  砫  襣
; ᯮ塞 . ࠢ ᠬ㧪 BOOTSTRAP ⠢
; ந⥫      ⪨ 室
;   ⪥ (  砥, START).
PUBLIC      start
; ᪮   樠  i486, 386 DX, 386 SX
;  376  饭 ०,      START ஢
; ⨯ .   i486,   386 DX   386  SX  
;   ॠ쭮 ०  ० ᮢ⨬:  PE 饭,
;     D    CS    ⠭.    믮    
; 16-⮢ ଥ.   376    ⠭
;  PE   D,  ⮬   믮      32-⮢
; ଥ.
    nop                   ;  NOP  樠樨 -
    nop                   ; ஢ i486  386 DS  SX
start:
    cld                   ;  䫠 ࠢ
    smsw bx               ; ஢ ⨯   
    test bl,1             ;  ᪮ ᯮ짮 SMSW,  
    inz pestart           ; MOV

; 㧪 GDTR  REALSTART  PESTART   ⮣, 頥
;  ⭮ ᯥ祭 짮⥫ READY  ⪥ 
;  
realstart:                ;   i486  386 DX 
    opprefx               ; 386 SX  16-⮢ ॠ쭮 ०,
    mov eax,offset gdt_desc  ;  祭 32-⮢ 
                          ; 㪠⥫ GDT ᯮ 䨪
                          ; ࠭
    opprefx               ;  祭  ⭮⥫쭮
    and eax,0ffffh        ;   ᯮ 䨪
                          ; ࠭
    lgdtw cs:[eax]        ; 㧪  GDTR 24 ⮢ 

    mov ax,bx             ; ஢ ᫮ ﭨ 設
    or al,pe_flag         ; ⠭  PE
    lmsw ax               ; 㧪 ᫮ ﭨ 設 
                          ; ⠭  PE
    jmp next              ; ⪠ । 롮ન 

pestart:                  ;   376  32-⮢ 饭-
                          ;  ०
mode
    mov eax,offset gdt_desc  ; 祭 32-⮢ 
                          ; 㪠⥫ GDT
    and eax,0ffffh        ; 祭  ⭮⥫쭮 
                          ; 
    lgdt cs:[eax]         ; 㧪 32 ⮢   GDTR
next:
    xor eax,eax           ; 樠 ᥫ஢ 
    mov al,data_selc      ; GDT[4]  _phantom_data_
    mov ds,ax
    mov ss,ax
    mov es,ax
    mov fs,ax
    mov gs,ax
    test bl,1
    jnz pejump

    opprefx               ; ᯮ 䨪 ࠭ 
pejump:                   ; 室   i486, 
                          ; 386 DX  386 SX
    jmp far ptr c_startup ;  쭨 室 ॢ A31-20
                          ;   ﭨ
init_code ENDS

END


; cstart.asm
;  ASM386/486  樠樨 ⥪  맮 ਪ
; ணࠬ  
;
; ***************************************************************
;
;  2.0
; ᪨ ࠢ Intel Corp., 1988
;   蠡          ࠧࠡ⪥  ਪ/
; ⥬ ணࠬ ।  ᯮ짮 ய஢
; ᥬ⢠ Intel i486 (TM)  Intel386(TM). Intel  
; ࠧ襭     䨪樨      ᯮ짮   
; 蠡  室.
;
; ***************************************************************
;
;
NAME cstart              ;  ꥪ⭮ 
EXTRN main:near          ; ⪠ 뢠 ਪ -ணࠬ
PUBLIC c_startup         ; 饥 ᨬ᪮ , ᯮ㥬 
                         ;  樠樨 

stack STACKSEG 1024

data SEGMENT RW PUBLIC
data ENDS
code32 SEGMENT ER PUBLIC

c_startup:
   mov esp,stackstart stack  ; 樠 㪠⥫ ⥪
   call main                 ; 맮 ਪ -ணࠬ
   hlt                       ; ⠭ 

code32 ENDS

/* simple.c
 ਪ ணࠬ C386/486(TM)  ਬ ⮩ ᪮


***************************************************************

 2.0
᪨ ࠢ Intel Corp., 1988
 蠡            ࠧࠡ⪥  ਪ/
⥬ ணࠬ ।    ᯮ짮  ய஢
ᥬ⢠  Intel  i486  (TM)    Intel386(TM).  Intel    
ࠧ襭   䨪樨  ᯮ짮  蠡 
室.

***************************************************************

*/
char message[]="⠥";

main ()
{
int array_count[10];
array_count[1] = 1;
array_count[2] = 2;
array_count[3] = 3;
array_count[4] = 4;
array_count[5] = 5;
array_count[6] = 6;
array_count[7] = 7;
array_count[8] = 8;
}
-- simple.bld
--  ந⥫    BLD386/486  ᮧ ਬ
-- ⮩ ᪮ 
--
-- **************************************************************
--
--  2.0
-- ᪨ ࠢ Intel Corp., 1988
--  蠡            ࠧࠡ⪥  ਪ/
-- ⥬ ணࠬ ।    ᯮ짮  ய஢
-- ᥬ⢠  Intel  i486  (TM)    Intel386(TM).  Intel    
-- ࠧ襭   䨪樨  ᯮ짮  蠡 
-- 室.
--
-- **************************************************************
--
simple; -- 䨪 㥬 
SEGMENT
    *segments      (DPL = 0),  --  ᥬ ᥣ⠬ 짮⥫
                               -- DPL ࠢ 0
    _phantom_code_ (DPL = 0),  --   ᥣ ᮧ
                               -- ந⥫  ᯮ짮
                               -- ࠢ饣 ਧ FLAT.
                               --  DPL  㬮砭 ࠢ 0.
                               --   ਢ ⮫쪮
                               --  ࠢ
    init_code                  -- 饭  樠樨 
                               --  
                 (BASE = 0ffff0900H);

TABLE
          --  GDT
    GDT                        -- GDT_DESC  饥 ᨬ᪮
                               --   㫥 樠樨
                               -- "simpstart"
         (LOCATION = gdt_desc, --  , 稭騩  GDT_DESC.
                               -- BLD386/486 頥 祭 
                               --  ࠭ GDT.   
                               --  6 ⮢.   ࠭
                               --      
                               --  ⮢ ࠭  
                               --    ଠ, ॡ㥬
                               --  ᯮ짮   GDT.
          BASE = 0ffff0100H
         ); --  GDT
TASK                           --  樠樨 
    main_task                  -- *ICD(TM)-486  ICE(TM)-386 
                               -- ICE(TM)-376
         (BASE = 0ffff0200H,
          Data = data,         -- 뢠  ᥣ,
                               -- 騩 . 祭 DS
          CODE = main,         -- main  窠 室, 
                               --   䨪 public
          STACKS = (stacks),   -- 䨪 ᥣ 㪠뢠
                               --  ᥣ ⥪. ⠭
                               -- 室 祭 SS:ESP.
          NO INTENABLED        -- ⬥ 뢠
);
TABLE
    ldt1 (NOT CREATED);        -- ந⥫  頥 LDT 
                               -- ꥪ ,  
                               -- ᮤন 뢮  ⨭
END

--
-- ਬ砭:  ICD-486    ஥   ⫠稪   業ࠫ쭮
--  i486.  த ஢  ⢥ ⠫
-- 1989 .
--


echo off
echo simple.bat
echo  䠩 DOS    樨  ᠬ㦠饩  ⮩
echo ᪮ 
echo *************************************************************
echo *                                                           *
echo *  2.0                                                *
echo * ᪨ ࠢ Intel Corp., 1988                         *
echo *  蠡            ࠧࠡ⪥     *
echo * ਪ/⥬ ணࠬ ।  ᯮ짮 *
echo * ய஢ ᥬ⢠ Intel i486(TM)  Intel386(TM)*
echo * Intel     ࠧ襭   䨪樨         *
echo * ᯮ짮  蠡  室.           *
echo *                                                           *
echo *************************************************************
REM
REM 騥  ᪠ ASM386/486 ᮧ ꥪ 㫨
REM "simpinit.obj"    "cstart.obj".  ᫥⢨  ᯮ짮  
REM 䠩    ਢ஢         ᥬ     뤠
REM ।०. ࠢ ४⨢ "debug" ⠢ ASM386/
REM 486  ⥫ ଠ,   ᨬ-
REM ᪮ ⫠.  ⨭ 뢠 "simpinit.lst" 
REM "cstart.lst"
echo *echo asm386 simpinit.asm debug mod486
asm386 simpinit.asm debug mod486
echo (1 ।० - ᯮ짮 ਢ. )
echo *
echo asm386 cstart.asm debug mod486
asm386 cstart.asm debugmod486
echo (1 ।० - ᯮ짮 ਢ. )
REM
REM  C-386/486 ᮧ ꥪ  "simple.obj".
REM ࠢ騥 ४⨢ "regallocate" ⠢ 
REM ⨬஢ ।  ॣ஢ ६.
REM ࠢ ४⨢ "code" 뢠 饭    䠩
REM ⨭   ᥢ-ᥬ୮   ⥪   ⨭.   "Debug"
REM 㪠뢠 C-386/486  室 祭 ⥫쭮
REM ଠ樨,   ᨬ᪮ ⫠.  ⨭
REM 뢠 "simple.lst".
echo *
echo c386 simple.c debug regallocate code mod486
c386 simple.c debug regallocate code mod486
REM
REM BND386/486  ꥤ 室 ᥣ  ࠧ蠥 뫪
REM 樨 ᨬ᪨ . ४⨢ ࠢ "noload"
REM 㪠뢠 ந⥫  室 ᮧ 㥬
REM (  㧮筮) 䠩. ४⨢ "debug" 㪠뢠  ,
REM  ந⥫  頥 ⫠ ଠ. "Object"
REM 㪠뢠  ,  室 䠩  뢠 "simple.
REM bnd".  ⨭ 뢠 "simple.mp1".
echo *
echo bnd386 simple.obj,simpinit.obj,cstart.obj noload debug object
(simple.bnd) mod486
bnd386 simple.obj,simpinit.obj,cstart.obj noload debug object
(simple.bnd) mod486
REM
REM   ᮫ 㦠 䠩 (  ண
REM 䨪஢      ),        㦥  
REM ஥  ⫠稪  ICD-486(TM)    ICE-386(TM),
REM  ஥  ICE-376(TM). BLD386/486 ᮧ ⠪
REM ᮫ , 室 ਯ ⠡,  ⠪
REM   樠樨 . ࠢ ४⨢
REM "buildfile"    "simple.bld"    ⢥   䠩
REM ந⥫. ࠢ ४⨢ "bootstrap" 
REM ᨬ᪮  "start"   ,   
REM  믮 室  믮 室 ᠬ㧪,
REM 室饣   0fffffff0H. ४⨢ "flat" ⠢
REM ந⥫ 䨣஢ 䠩  ᪮ ,  
REM  室  ᥣ _phantom_data_, "mod486" ⠢
REM ந⥫    뤠   ᮮ饭,   㪮騥   ᮧ
REM ꥪ⭮    i486(TM). "mod376" ⠢
REM ந⥫    뤠   ᮮ饭,   㪮騥   ᮧ
REM ꥪ⭮    376(TM).      㤠
REM       ४⨢     ᮧ  ꥪ⭮    
REM  486(TM)DX.  ⨭ 뢠 "simple.mp2".
REM 筠 ⥬ 뢠 "simple".
echo *
echo bld386  simple.bnd  buildfile  (simple.bld) bootstrap (start)
echo flat mod486
bld386  simple.bnd  buildfile  (simple.bld) bootstrap (start) flat
mod486


