;  १  ⮢  #7C/#3C  #74/#24
CNF_PORT:
.ON             EQU #74
.OFF		EQU #24
; Data: 
.TURBO.ON       EQU 3           ;   祭 TURBO
.TURBO.OFF      EQU 2	        ;   몫祭 TURBO
.CNF_0          EQU #04	        ;  ⮢ 0
.CNF_1          EQU #0C	        ;  ⮢ 1 ( ०  ⮣ zx spectrum)
.CNF_2          EQU #14	        ;  ⮢ 2
.CNF_3          EQU #1C	        ;  ⮢ 3 (० 㯠  ⠬ 93  ᨣ TR-DOS)
.PENT_RESET	EQU #20
.SCORP_RESET	EQU #40
.CNF_512        EQU #80	        ; 祭 Pentagon 128
.ZX_BIOS	EQU #00
.ZX_EXTENSION	EQU #01
; ਡ   ﬨ  #7C/#3C
SYS_PORT:                                                       	
.ON		EQU #7C
.OFF		EQU #3C
.RAM            EQU .OFF
.ROM            EQU .ON
; Data:
.PAGE0          EQU 1
.PAGE8          EQU 0
.EXTENSION      EQU .PAGE0
.BIOS           EQU .PAGE8
.TURBO.ON       EQU CNF_PORT.TURBO.ON
.TURBO.OFF      EQU CNF_PORT.TURBO.OFF
.CNF_0          EQU CNF_PORT.CNF_0  
.CNF_1          EQU CNF_PORT.CNF_1  
.CNF_2          EQU CNF_PORT.CNF_2  
.CNF_3          EQU CNF_PORT.CNF_3
.PENT_RESET	EQU CNF_PORT.PENT_RESET
.SCORP_RESET	EQU CNF_PORT.SCORP_RESET
.CNF_512        EQU CNF_PORT.CNF_512
/*
---------------------------------------------------
CNF_PORT   4 譨  (#7C/#3C  #74/#24) १  ⮢.
SYS_PORT ﬨ    #7C/#C

SYS_PORT ⮫쪮 ४砥 RAM/ROM
CNF_PORT   ⠫쭮,  1=0  ࠭   १ 0

CNF_PORT
bit0 - TURBO: off/on	 vROM: 
;                                #24 - ࠭  . (#E0..#E3)/(#E4..#E7)
;                                #74 - ࠭  . #EB/#EF
bit1 - 1 - TURBO ena,	0 - ४祭 vROM page
bit2 - 1 - CNF ena                   
bit3 - \_ cnf0..cnf3                                   -\
bit4 - /                                               - \
bit5 - CNF_PN[5..0]_RESET by 1 -  .      - -|--->  ⮫쪮  bit2=1
bit6 - CNF_SC_RESET       by 1 -  .     - /
bit7 - CNF_PN[7..6]_RESET by 0 -  -512        -/

        ४祭 ࠭ vROM:
____________________________________________________
|  祭   |         譨 :      |
|   .  |____________________________________|
|        | #24  ----  |         |      |      |
|      | #3C (-rom) |         |      |      |
|     |||     | #7C (+rom) |   #74   | 1FFD | 7FFD |    
|     \|/     |   bit1..0  | bit1..0 | bit1 | bit4 |    
|_____________|____________|_________|______|______|
|E0           |     00     |         |   1  |  ... |
|E1 (+dos_on) |     00     |         |   0  |  ... |
|E2           |     00     |         |   0  |   0  |
|E3           |     00     |         |   0  |   1  |
|E4           |     01     |         |   1  |  ... |
|E5 (+dos_on) |     01     |         |   0  |  ... |
|E6           |     01     |         |   0  |   0  |
|E7           |     01     |         |   0  |   1  |
|EB           |            |   00    |  ... |  ... | BIOS
|EF           |            |   01    |  ... |  ... | EXTENSION
|_____________|____________|_________|______|______|
... - 祭 ஫  ࠥ

        ⠭ ࠭   ࠧ  ᯥ㬠:
 Page      Name          Int.Port      Page      Name          Int.Port
  #42     BASIC 128       #E2     |     ???     ??? ??? ???     #E6
  #43     BASIC 48        #E3     |     ???     ??? ??? ???     #E7
  #44     TR-DOS          #E1     |     ???     ??? ??? ???     #E5
  #45     BIOS (ZX_EXP)   #E0     |     ???     ??? ??? ???     #E4
  #46     BIOS (ZX_EXP)   #EB
  #47     BIOS (ZX_EXP2)  #EF

SYS_PORT:
bit0 - TURBO: on/off	 BIOS: Part1/Part0
bit1 - 1 - TURBO ena,	0 - ४祭 BIOS-PAGE
bit2 - 1 - CNF ena                   
bit3 - \_ cnf0..cnf3                                   -\
bit4 - /                                               - \
bit5 - CNF_PN[5..0]_RESET by 1 -  .      - -|--->  ⮫쪮  bit2=1
bit6 - CNF_SC_RESET       by 1 -  .     - /
bit7 - CNF_PN[7..6]_RESET by 0 -  -512        -/

㭪 bit0 । १ bit1
bit7..bit3 ࠡ뢠  bit2 = 1

   #7C 砥    0,    #3C ⪫砥
   0, ⮬  7/3C 뢠 System/User.
४祭 ࠭  ࠡ⠥  ⮬ ਠ ⠪:
	  16 ࠭  0  15,  #5C  ४砥  bit3 xor /SYS (SYS_PORT bit[1..0] = b"0X" (BIOS: Part1/Part0))
	᫨ ᤥ ld a,1 : out (sys_port_on),a -  㬥 ࠭  㤥 ࠢ쭠  0  15,
	᫨ ᤥ ld a,0 : out (sys_port_on),a -  㬥 ࠭  㤥  ஢ bit3:
		࠭  0-7  㬥஢  8-15
		࠭  8-15  㬥஢  0-7
	४祭 ࠭  ⮬ #5C ந室 ⮫쪮  ⪭⮩  १ sys_port.
 ४ ࠭ १ ७  #8F, ⮣ bit4 ⮣  砥 ᨣ   .
      㬥 ࠭  ⠭ bit4.
----------------------------------------------------


ROM.SLOT0