	       "-128" 
  .     
   ,     
          
 , :

	     "ORION/Z-Super/Altair"

        .
       - 64   
,    .     16-  ,
    0-15.
             -        
    (.  .1)
        -   .
    -  128   .       (   
""    )    ""    
  .
        -     
       ,         .
 ,  ,  .
      -     64 , 
        
  0-15, ..   0000-FFFFH,  
 -  .
      -          16  .
      14-  .
   ,       
 ,  .

 1.  .

	   0       
	       O         
	             FBH            
       3FFFH        
       4000H                     FBH /  XROM. 
	                              F9H
	                        44/48/
	               60/64 .
	          F9H                  -
	                               
       EFFFH                     F9H   ,
       F000H       
	         XROM    ( 16  -
       FFFFH   )    
		   .1            F9H ( 
				      (-
				   )-   ).
         F9H -
  : XX XXXX H,  -  F9H
-  ,  - .

    !         
D0-D1    F9H,             .
,               
...





 -   XROM.     F000H-FFFFH.  
  :

  a)    .     1  ,   
3000-33FFH         (F000H-F3FFH).    
 , ,   ROM-BIOS.

  )      .   1 ,  
   /    (F400H-F7FFH),        
   .

	F400 - F403  -   
	F500 - F503  -   
	F600 - F603  -    (, ...)
	F700 - F703  -  18183
	F720         -   
	F780 - F783  -   
	F7E0         -  

        .
           
0-      .

  )  ROM-BIOS.   2  (F800H-FFFFH).   
      .       
          ,
    .     
FCH.      ,   - D7  ,
0-, 1-.       -  
D0-D6  ,        
.           
             2      
  N0 ( ).   
  ,    .

 .
 1)      F8XX, F9XX, FAXXH   
     OUT F8,  F9,
FA.
 2)             ( SUPER-3)
   ( 0)    .

 -    FBH     16   
 0000H-3FFFH      .
    FBH   :
 1)  12=0  -    4        ,
   256 .       
      0 ().   4   FBH
 /   FBH, 
XROM, .
 2) 12=1 -   -    .










   
        12=                                      
        
                     0                       1      
        
        -                        
        .                                      
   
   D0-D3  -                         
                 
    D4    0   1-                          
                NMI-                 
                 
              0-            
                XROM   CPU.                  
    D5   (1)                                    
              1- XROM                    
                ( Extend Memory)              
                 
    D6    1   0- ų              
                 INT 50 .              
                 
    D7    0   1-.  FBH.              
   
                             .2   


 .
 1)      OUT  FBH,A      
 ,      :  15=0,
12=0.
 2)       12    
 .           
256 .

 2.  .

      ""       
 ,  384   256    (400    256).
         ,        (0-255)
    ,   ,
  ( -D7...D0- ).
             8 ,
    [0-47(49)]      
6-     .
             
   e   0  1 ( 2 -   
  3-   ).       
  FAH (.  .3)
         F8H (. .4)
                                 
                                 ˳  

        ĳ1 0- ׳

 D1 D0 .ٳ 0 - +   0         2      

 0  0      3        7    1 - +   1         2      

 0  1      2        6   2,3- -   -         

 1  0      1        5    4 + +   0         4      
                          
 1  1      0        4   
 5 + +   1         4      
           .3             
                             6,7+ +2  16  8 ˳
                             
                             ...0-3  EGA+,  
                                    -" "
                             
                                         .4               


 3.  .

- 00H-03H - 4   ,   -
   :
		F4 -   58055;
		F5 -  ROM-   ----"--- ;
		F6 -    () 55;
		F7 -   93.

- 1FH - kempson-joystick -   .
	  - 001FH, :

	XOR     A
	IN      A,1FH
	;0-, 1-.

   D0 - ; D1 - ; D2 - ; D3 - ; D4 - Fire;
   D5 - Fire+ (0); D6=0; D7=0.

- 20H -   .  .
	  - F720H.

	D0, D1 - drive: A, B, C, D.
	D2 -  .
	D4 - side.
	D6 - : 0=MFM; 1=FM.

- FDH - AY-3-891X. FFFDH - write -  ;
		   BFFDH - / .
         FFFDH - 
    / AY-3-891X.

- FEH -  : D0 - blue;
	( )  D1 - red;
			 D2 - green;
			 D4 - SOUND;
			 D7 - / .

- FFH -      - toggle sound.


	   .
	(   "/Z").

 1)       
              
,       ,      ,
"",            .   
,  .

 2)            -
    ()     58055,
..     IN/OUT.        Z80  
    STA/LDA.     
F8H,  F9H ...   STA     ,
       (..     1  
3).

 3)              
  /INT:

 -       ()?    
FFH.       AY-3-891X.   
    AY,     
          
AY-.           AY-  -
.            AY         
-       
AY-.              
.,      .

 -        /INT?    28
 (  /WAIT).     
 "",    .

 -      ()?   ,
      ( ) -   
-     .           
  ,    .

 4)         32-,  16-
.

 5)        15  -     
3,7,11,15...    3000-3FFFH   F000H-FFFFH.

 6)     15,    "", 
          340,   350,   360
(  55)   - ,  
      ,    .  
 ,     /WE    
DD29        ,    
   F400-FFFFH (  FULLRAM      
).       3, ..   
  1,2,3   FXXXH  DD16.2,
DD16.3         16, 17  .
 ,    DD49,  DD50  
,     ()   
  ,       16 
,    "-I (II)".     
  (.),    
       .




 "87"                                   15/DD29
 X
                               
 "70"                      
  &                         2/DD29
 8/DD8                    
   
   
                 "93"                   14/DD27
                 X
                                     
                 "72"                
                 


 7)    "" ,    
      .         0-3FFFH
             ,      ...
,      (    )    
     .

 8)            :
F8H, F9H, FAH, FBH, FCH, FEH,  FFH,    15=0!   (
     F4, F5, F6, F7,    , 
  FFH  FBH  ).

 15=0!   (
     F4, F5, F6, F7,    