 ⮨   砬 ॠ쭮 ६
Julius Goryavsky, (2:5030/16.32)

> 1.  ᯮ짮 p -뢮?

   1. p IOPL-ᥣ  p pp. H p ⮬ ⠥  p祭 ⥪⮢ OS-. :( (᫨ p   믮  CLI).
   2.  pp - IMHO  pp ⮤.

> 2.  ⮨   pp뢠ﬨ?

> .)   p祭   p OS  p p⭮
>     pp㥬 pp뢠?

   0. pp뢠  p뢠 ⮫쪮 pp. p ⮬ p (p騥) 맮 DevHlp  㯭  ⥪ p⪨ pp뢠.

   1.  p p祭/ᮣ襭  ᯮ짮  饣 IRQ p묨 pp.

> b.)   p뢠  OS pp ?

   pp ppp p稪 㦭 IRQ  ᮮ頥 OS-  pp ⥪  室. OS 뢠 p稪,  p室 pp뢠, ⮢   ⥪. p稪   p⢮ (  IN/OUT,  p )  OS- (  맮 DevHlp),    p⪨ pp뢠 뢠 DevHlp_EOI.

> 3.   ⠩p - p     pᥪ㭤 ?

   1.  㧭 ⥪饥 p  筮  pᥪ㭤,  p뢠 p  pp뢠   筮 - .

   2. ᫨  Pentium -   㧭 p  筮 ~20 ⠪⮢ pp.

   3. p  ᫥ pp뢠,  ᮪ , 㯥.  ⥬ ⠩p = 31 ms.

> 4. pp :   p樯쭠  ⠭ 
> p, p  ( p  p)    
> ᮣᮢ뢠  p㠫樥  ?

    4  pp⮢  32 pp⠬   .   Time Critical p⠭  ⠫, p p㣨   Time Critical,   ᮪ pp⮬. pp, ᭮ ,  ⠢ ᢮   楯窨 (thread).

   p㠫  - 筥 p  -  ⪫. H ᫨  祭 - ᠬ , ⠥  p p   ᪥ - p p.

> 5.   p樯쭠   ᫮ ᪠
> pᮢ  p  ᥪ㭤  ᥪ㭤  
> ᨬ  p饭  ᪠  p祣. (᮫
> pp ?

   Time Critical -   ᮫ pp. H ⨢ ᪮ pp  ""  ...  pp  㦨 pp뢠, pp  ᪠ - pp⭥  楯祪,   pp⮬.

