diff --git a/SP_TRDOS.ASM b/SP_TRDOS.ASM
index a8903e1..e81b60c 100644
--- a/SP_TRDOS.ASM
+++ b/SP_TRDOS.ASM
@@ -12,74 +12,87 @@
 	INCLUDE	'inc/rom_routines.inc'
 	INCLUDE	'Shared_Includes/constants/zx_char_codes.inc'
 	INCLUDE	'Shared_Includes/constants/BIOS_equ.inc'
-;***************************************
-;CNF_PORT        EQU     #74
-AUTO_4000	EQU	04000H
-AUTO_4010	EQU	04010H
-AUTO_4011	EQU	04011H
-AUTO_4020	EQU	04020H
-AUTO_4080	EQU	04080H
-AUTO_40E1	EQU	040E1H
-AUTO_40E3	EQU	040E3H
-AUTO_40E4	EQU	040E4H
-AUTO_40E5	EQU	040E5H
-AUTO_40F0	EQU	040F0H
-AUTO_40F1	EQU	040F1H
-AUTO_40FF	EQU	040FFH
-AUTO_4100	EQU	04100H
-AUTO_4101	EQU	04101H
-AUTO_4102	EQU	04102H
-AUTO_4103	EQU	04103H
-AUTO_4110	EQU	04110H
-AUTO_4111	EQU	04111H
-AUTO_4118	EQU	04118H
-AUTO_4119	EQU	04119H
-AUTO_411B	EQU	0411BH
-AUTO_411D	EQU	0411DH
-AUTO_411E	EQU	0411EH
-AUTO_4130	EQU	04130H
-AUTO_4140	EQU	04140H
-AUTO_41FF	EQU	041FFH
-AUTO_5220	EQU	05220H
-AUTO_58E8	EQU	058E8H
 
-AUTO_5E34	EQU	05E34H
-AUTO_5F00	EQU	05F00H
-AUTO_5F10	EQU	05F10H
-AUTO_5F12	EQU	05F12H
-AUTO_6000	EQU	06000H
-PORT_128	EQU	07FFDH
-AUTO_A1DB	EQU	0A1DBH
-AUTO_B0ED	EQU	0B0EDH
-AUTO_B8ED	EQU	0B8EDH
-AUTO_C000	EQU	0C000H
-AUTO_C130	EQU	0C130H
-AUTO_C308	EQU	0C308H
-AUTO_C916	EQU	0C916H
-AUTO_FE15	EQU	0FE15H
-AUTO_FF00	EQU	0FF00H
-AUTO_FFFF	EQU	0FFFFH
+TRDOS_ROM_CMD:
+.READ_BPB	EQU BIOS.HDD_READ_BPB	and #BF
+.READ		EQU BIOS.HDD_READ 	and #BF
+.WRITE		EQU BIOS.HDD_WRITE	and #BF
+;***************************************
+
+
+;CNF_PORT        EQU     #74
+AUTO_4000	EQU	#4000
+AUTO_4010	EQU	#4010
+AUTO_4011	EQU	#4011
+AUTO_4020	EQU	#4020
+AUTO_4080	EQU	#4080
+AUTO_40E1	EQU	#40E1
+AUTO_40E3	EQU	#40E3
+AUTO_40E4	EQU	#40E4
+AUTO_40E5	EQU	#40E5
+AUTO_40F0	EQU	#40F0
+AUTO_40F1	EQU	#40F1
+AUTO_40FF	EQU	#40FF
+AUTO_4100	EQU	#4100
+AUTO_4101	EQU	#4101
+AUTO_4102	EQU	#4102
+AUTO_4103	EQU	#4103
+AUTO_4110	EQU	#4110
+AUTO_4111	EQU	#4111
+AUTO_4118	EQU	#4118
+AUTO_4119	EQU	#4119
+AUTO_411B	EQU	#411B
+AUTO_411D	EQU	#411D
+AUTO_411E	EQU	#411E
+AUTO_4130	EQU	#4130
+AUTO_4140	EQU	#4140
+AUTO_41FF	EQU	#41FF
+AUTO_5220	EQU	#5220
+AUTO_58E8	EQU	#58E8
+
+AUTO_5E34	EQU	#5E34
+AUTO_5F00	EQU	#5F00
+AUTO_5F10	EQU	#5F10
+AUTO_5F12	EQU	#5F12
+AUTO_6000	EQU	#6000
+PORT_128	EQU	#7FFD
+AUTO_A1DB	EQU	#A1DB
+AUTO_B0ED	EQU	#B0ED
+AUTO_B8ED	EQU	#B8ED
+AUTO_C000	EQU	#C000
+AUTO_C130	EQU	#C130
+AUTO_C308	EQU	#C308
+AUTO_C916	EQU	#C916
+AUTO_FE15	EQU	#FE15
+AUTO_FF00	EQU	#FF00
+AUTO_FFFF	EQU	#FFFF
 
 ;****************************************
 
 		DISPLAY "Start."
-START:
-	DI
-        LD      DE,0FFFFh
+START:	DI
+        LD      DE,#FFFF
 	LD	A,7
 	JR	CONT_1
 RST08:
 	NOP
 CONT_1:
-        OUT     (0FEH),A
+        OUT     (#FE),A
 	LD	A,'?'
 	JR	CONT_2
-	NOP
+
+////////////////////////////////////////////////////////////////////////
+	BLOCK	#10-$,0
 RST10:
 	JP	PRINT_SYM
+////////////////////////////////////////////////////////////////////////
+
 CONT_2:
 	LD	I,A
 	JP	CONT_3
+
+////////////////////////////////////////////////////////////////////////
+	BLOCK	#18-$,0
 PRINT_LN:
         JP      PRINT_L
 CONT_3:
@@ -88,32 +101,39 @@ CONT_3:
 	NOP
 AUTO_001E:
 	JR	CONT_4
+
+////////////////////////////////////////////////////////////////////////
+	BLOCK	#20-$,0
 RST20:
         JP      RST20_EXE
 	RET
+////////////////////////////////////////////////////////////////////////
+
 CONT_4:
 	LD	H,D
 	LD	L,E
 	JR	CONT_5
+
+////////////////////////////////////////////////////////////////////////
+	BLOCK	#28-$,0
 RST28:
         JP      RST28_EXE
+////////////////////////////////////////////////////////////////////////
+
 CONT_5:
 	LD	(HL),2
 	DEC	HL
 	CP	H
 	JR	NZ,CONT_5
 	JR	CONT_6
+
+////////////////////////////////////////////////////////////////////////
 REDIR_RST38:
+	BLOCK	#38-$,#FF
 ;	JP RST38X
 ;	EI
 ;	RET
-	RST 38H
-	RST 38H
-	RST 38H
-	RST 38H
-	RST 38H
-R38:
-	EI
+R38:	EI
 	RET
 CONT_6:
 	OR	A
@@ -128,25 +148,33 @@ CONT_6:
 CONT_7:
 	DEC	HL
 	LD	(P_RAMTOP),HL
-        LD      DE,3EAFh
-        LD      BC,00A8h
+        LD      DE,#3EAF
+        LD      BC,#00A8
 	LD	A,E
 	EX	DE,HL
-        LD      SP,6000h
+        LD      SP,#6000
 	LD	(AUTO_5F00),HL
         LD      HL,RET_1
 	PUSH	HL
-        LD      HL,3D2Fh
+        LD      HL,#3D2F
 	PUSH	HL
-        LD      HL,0B8EDh
+        LD      HL,#B8ED
+
+////////////////////////////////////////////////////////////////////////
+	BLOCK	#64-$,0
 AUTO_0064:
 	JR	CONT_8
+////////////////////////////////////////////////////////////////////////
 
+
+////////////////////////////////////////////////////////////////////////
+	BLOCK	#66-$,0
 ;**********   MAGIC    ***********
 ;        JP      MAGIC_1 ;AUTO_2A56
 	RETN
 	NOP
-;*********************************
+////////////////////////////////////////////////////////////////////////
+
 CONT_8:
 	LD	(AUTO_5F10),HL
 	PUSH	AF
@@ -567,6 +595,7 @@ AUTO_03CD:
 	LD	A,(MSG_FLAG)
 	OR	A
         CALL    Z,PRINT_L
+;!FIXIT Ошибка!!! Перед печатью надо открыть поток 0 и очистить низ экрана.
 	RET
 AUTO_03D9:
         LD      HL,AUTO_2A28
@@ -597,9 +626,16 @@ RD_HEAD_DSK:
 	LD	A,(CODE_10H)
 	CP	16
 	JR	Z,AUTO_0415
-        LD      HL,DISK_ERROR_MSG
-	RST	PRINT_LN
-	JR	AUTO_03C0
+	;!TEST
+	 ; Неправильно обрабатывалась ошибка. Программа не получала код 
+	 ; ошибки, а внизу экрана совершенно не к месту появлялся DISK ERROR.
+	 ;LD	HL,DISK_ERROR_MSG
+	 ;RST	PRINT_LN
+	 ;JR	AUTO_03C0
+	 LD	HL,DISK_ERROR_MSG
+	 JP	RD_HEAD_DSK.FIXED
+	;
+
 AUTO_0415:
 	CALL	get_disk_type
 	RES	0,(HL)
@@ -659,8 +695,11 @@ AUTO_0479:
 	PUSH	AF
 	CALL	Z,AUTO_1D97
 	POP	AF
-	CP	17
-        JP      NC,CMD_ERROR
+	;!TEST
+	 ;CP	17
+	 CP	#10
+        ;
+	JP      NC,CMD_ERROR
 	CALL	AUTO_1D84
 	LD	A,255
 	LD	(DISK_1_FLG),A
@@ -846,8 +885,10 @@ AUTO_05BD:
 AUTO_05CB:
 	LD	A,(FL_NAME)
 	CP	'*'
-	JP	NZ,AUTO_03D9
-        CALL    BAS_2BF1
+	;JP	NZ,AUTO_03D9
+	JR	Z,.next
+        RET
+.next:	CALL    BAS_2BF1
 	EX	DE,HL
         CALL    SET_DRIVE
 	LD	A,(HL)
@@ -876,7 +917,7 @@ AUTO_05F4:
 	JR	Z,AUTO_05F4
         LD      HL,FL_START
         LD      DE,VAR_2
-        LD      BC,START+7
+        LD      BC,7
 	LDIR
 	LD	A,(DISK_2_FLG)
         CALL    SET_DISK
@@ -897,7 +938,7 @@ AUTO_063C:
 	JP	Z,AUTO_1C45
         LD      HL,VAR_2
         LD      DE,FL_START
-        LD      BC,START+7
+        LD      BC,7
 	LDIR
 	LD	DE,(FL_SIZE)
 	LD	D,0
@@ -945,11 +986,15 @@ CMD_COPY:
 	CALL	AUTO_1CB0
 	LD	A,(OPER_DISK)
 	LD	(DISK_1_FLG),A
-	JP	NZ,AUTO_05CB
+	;!TEST Ошибка!!! COPY "*","*" надо проверять всегда, иначе при
+	 ; наличии на диске файла с именем "*" скопируется только этот файл
+	 ;JP	NZ,AUTO_05CB
+	 CALL	CMD_COPY.FIXED
+	;
 	CALL	AUTO_165D
         LD      HL,FL_START
         LD      DE,VAR_2
-        LD      BC,START+7
+        LD      BC,7
 	LDIR
 	CALL	AUTO_1CB0
 	PUSH	AF
@@ -987,7 +1032,7 @@ AUTO_0716:
 	CALL	AUTO_165D
         LD      HL,FL_START
         LD      DE,VAR_2
-        LD      BC,START+7
+        LD      BC,7
 	LDIR
 	LD	A,(DISK_2_FLG)
         CALL    SET_DISK
@@ -1378,7 +1423,7 @@ AUTO_11B0:
 ;
 CMD_LIST:
         CALL    TEST_CR
-        LD      BC,START+2
+        LD      BC,2
 	LD	(MED_LEN),BC
 	JR	Z,AUTO_1205
 	CP	'#'
@@ -1438,7 +1483,7 @@ AUTO_123E:
 	CALL	PRINT_SYM
         CALL    PRINT_CR
 	LD	HL,(VAR_1)
-        LD      BC,START+3
+        LD      BC,3
 	ADD	HL,BC
 	LD	A,(HL)
 	LD	HL,(VAR_1)
@@ -1450,7 +1495,7 @@ AUTO_123E:
         LD      HL,AUTO_10AA
 	RST	PRINT_LN
 	LD	HL,(VAR_1)
-        LD      BC,START+2
+        LD      BC,2
 	ADD	HL,BC
 	LD	A,(HL)
         LD      HL,AUTO_10CE
@@ -1474,7 +1519,7 @@ AUTO_1292:
         LD      HL,AUTO_111E
 	RST	PRINT_LN
 	LD	HL,(VAR_1)
-        LD      BC,START+4
+        LD      BC,4
 	ADD	HL,BC
 	LD	C,(HL)
 	INC	HL
@@ -1551,7 +1596,7 @@ AUTO_1303:
         CALL    PRINT_CR
 	JP	AUTO_123E
 AUTO_131B:
-        LD      BC,START+5
+        LD      BC,5
 	ADD	HL,BC
 	LD	B,(HL)
 	INC	HL
@@ -1638,7 +1683,7 @@ AUTO_13B7:
 	CALL	AUTO_165D
         LD      HL,FL_START
         LD      DE,VAR_2
-        LD      BC,START+7
+        LD      BC,7
 	LDIR
 	LD	A,(VAR_2_0)
 	LD	(ERR_3D00),A
@@ -1679,7 +1724,7 @@ AUTO_1403:
 	JP	Z,AUTO_2723
         LD      HL,VAR_2
         LD      DE,FL_START
-        LD      BC,START+7
+        LD      BC,7
 	LDIR
 	CALL	AUTO_03FD
 	LD	A,(ERR_3D00)
@@ -1839,7 +1884,7 @@ AUTO_1575:
 	SBC	HL,BC
 	LD	(FL_TYPE),HL
 	LD	(FL_N_2),HL
-        LD      HL,START
+        LD      HL,0
 	LD	(FL_N_4),HL
 	LD	(FL_N_6),HL
 	CALL	AUTO_15B8
@@ -1890,7 +1935,7 @@ AUTO_15DB:
 	POP	BC
 	JP	NC,AUTO_1644
 	LD	BC,(FL_TYPE)
-        LD      HL,START
+        LD      HL,0
 	LD	(FL_TYPE),HL
 AUTO_15F8:
 	PUSH	BC
@@ -1976,6 +2021,7 @@ AUTO_168F:
 	LD	B,A
 	LD	C,0
 	RET
+	;
 	LD	(MED_START),HL
 	LD	(MED_LEN),HL
 	LD	DE,(FL_SIZE)
@@ -2001,7 +2047,7 @@ CMD_MOVE:
 	SUB	9
 	LD	(L_5D23),A
 	LD	HL,(FL_N_4)
-        LD      DE,START
+        LD      DE,0
 	LD	B,9
         CALL    READ_DISK
 	LD	HL,(FL_N_4)
@@ -2085,7 +2131,7 @@ CMD_MOVE:
 	ADD	HL,DE
 	LD	(HL),0
 	LD	HL,(FL_N_4)
-        LD      DE,START
+        LD      DE,0
 	LD	B,9
         CALL    WRITE_DISK
 	LD	A,(L_5D23)
@@ -2469,11 +2515,11 @@ AUTO_1A01:
 	LD	DE,(FL_START)
 	PUSH	DE
 	PUSH	HL
-        LD      HL,START
+        LD      HL,0
 	LD	A,(DISK_2_FLG)
 	CP	255
 	JR	Z,AUTO_1A20
-        LD      HL,START+5
+        LD      HL,5
 AUTO_1A20:
 	ADD	HL,DE
 	LD	(MED_LEN),HL
@@ -2586,7 +2632,7 @@ AUTO_1AC4:
 ;
 CMD_SAVE:
 	CALL	AUTO_1852
-        LD      HL,START
+        LD      HL,0
 	LD	(AUTO_5CD1),HL
         CALL    INPUT_TXT
 	CALL	AUTO_1D8C
@@ -2734,7 +2780,7 @@ AUTO_1BDE:
 AUTO_1BFC:
 	CALL	AUTO_1C1B
 	RET	NC
-        LD      HL,START
+        LD      HL,0
 	LD	(DOS_CH_ADR),HL
 	LD	A,(DISK_2_FLG)
 	CP	255
@@ -3121,8 +3167,8 @@ AUTO_1E67:
 	LD	(CONT_SEC),DE
 	JP      R_W_REDIR
 
-        LD      (HL),30         ; НЕ исп. !!!
-
+        ;LD      (HL),30         ; НЕ исп. !!!
+	BLOCK	#1E70-$,0
 AUTO_1E70:
 	POP	HL
 	POP	BC
@@ -3182,7 +3228,7 @@ AUTO_1EBC:
 ;
 ;
 CMD_FORMAT:
-        LD      HL,START
+        LD      HL,0
 	LD	(MED_START),HL
 	LD	(DOS_CH_ADR),HL
 	LD	(AUTO_5CD1),HL
@@ -3711,7 +3757,7 @@ AUTO_229A:
 	LD	(DOS_CH_ADR),HL
 	CALL	AUTO_1AC4
 	CALL	AUTO_1B59
-        LD      HL,START
+        LD      HL,0
 	LD	(FL_LEN),HL
 	CALL	AUTO_166B
 	JP	AUTO_1E43
@@ -4127,7 +4173,7 @@ AUTO_2504:
 	RST	RST28
 	LD	B,(HL)
 	XOR	A
-        LD      HL,START
+        LD      HL,0
 	LD	(MED_LEN),HL
 AUTO_2538:
 	ADD	HL,DE
@@ -4455,8 +4501,8 @@ AUTO_276B:
 AUTO_2779:
 	DB	"BACKUP DISK",141
 AUTO_2785:
-	DB	"Insert Destination disk",13,"then "
-	DB	"press Y",0
+	DB	"Insert Destination disk",13
+	DB	"then press Y",0
 AUTO_27AA:
 	DB	"Insert Source disk then press Y",0
 AUTO_27CA:
@@ -4469,13 +4515,16 @@ AUTO_27ED:
 	DB	"Directory full",141
 AUTO_27FC:
 	DB	"No disk",141
-		DISPLAY "10k"
+
+ DISPLAY "10k"
+
 AUTO_2804:
 	DB	"Stream opened",141
 AUTO_2812:
 	DB	"Not disk file",141
 AUTO_2820:
-	DB	"File exists",13,"Over write?(Y/N",169
+	DB	"File exists",13
+	DC	"Over write?(Y/N)"
 AUTO_283C:
 	PUSH	AF
 	PUSH	BC
@@ -4489,7 +4538,7 @@ AUTO_283C:
 	POP	AF
         LD      HL,AUTO_0201
 	LD	(ADR_RET),HL
-        LD      HL,START
+        LD      HL,0
 	ADD	HL,SP
 	LD	(DOS_SP),HL
 	DEC	HL
@@ -4711,34 +4760,20 @@ CMD_80:	LD	A,#80			;
 ;
 ;
 ;Адрес #29B2. Тексты сообщений TR-DOS.
-AUTO_29B2:
-	DB	13,"*ERROR*",141
-AUTO_29BB:
-	DB	13,"No space",141
-AUTO_29C5:
-	DB	13,"File exists",141
-AUTO_29D2:
-	DB	" Free",141
-READ_ONLY_MSG:
-	DB	13,"Read Onl",249
-DISK_ERROR_MSG:
-	DB	13,"Disc Erro",242
-AUTO_29ED:
-	DB	13,"Rec.  O/",198
-AUTO_29F7:
-	DB	"Title:",160
-AUTO_29FE:
-	DB	13,"Retry,Abort,Ignore?",0
-AUTO_2A13:
-	DB	13,"Trk",160
-AUTO_2A18:
-	DB	" sec",160
-AUTO_2A1D:
-	DB	" Del. File",141
-AUTO_2A28:
-	DB	13,"No"
-AUTO_2A2B:
-	DB	" File(s)",141,0
+AUTO_29B2:	DB 13,	"*ERROR*",	141
+AUTO_29BB:	DB 13,	"No space",	141
+AUTO_29C5:	DB 13,	"File exists",	141
+AUTO_29D2:	DB	" Free",	141
+READ_ONLY_MSG:	DC 13,	"Read Only"
+DISK_ERROR_MSG:	DC 13,	"Disk Error"
+AUTO_29ED:	DC 13,	"Rec.  O/F"
+AUTO_29F7:	DC	"Title: "
+AUTO_29FE:	DZ 13,	"Retry,Abort,Ignore?"
+AUTO_2A13:	DC 13,	"Trk "
+AUTO_2A18:	DC	" sec "
+AUTO_2A1D:	DB	" Del. File",	141
+AUTO_2A28:	DB 13,	"No"
+AUTO_2A2B:	DZ	" File(s)",	141
 AUTO_2A35:
         LD      HL,AUTO_2A41
         LD      DE,AUTO_4080
@@ -4778,7 +4813,7 @@ AUTO_2A56:
 	PUSH	AF
 	LD	A,R
 	PUSH	AF
-        LD      HL,START
+        LD      HL,0
 	ADD	HL,SP
 	PUSH	HL
 	LD	A,3Ch
@@ -4872,13 +4907,13 @@ AUTO_2B09:
 	INC	HL
 	LD	(HL),D
         LD      HL,AUTO_4000
-        LD      DE,START
+        LD      DE,0
         IN      A,(WG_SEC)
 	DEC	A
 	LD	E,A
 	LD	B,1
 	CALL	AUTO_2D73
-        LD      HL,START
+        LD      HL,0
 	ADD	HL,SP
 	LD	(AUTO_4140),HL
         LD      SP,AUTO_41FF
@@ -4955,7 +4990,7 @@ AUTO_2B95:
 	INC	A
 	LD	(AUTO_40E4),A
 	LD	HL,(AUTO_40E5)
-        LD      DE,START+1
+        LD      DE,1
 	SBC	HL,DE
 	LD	(AUTO_40E5),HL
 	RET	C
@@ -6473,11 +6508,22 @@ EXP_FNS_PREPARE:
 	RET
 EXP_FNS_PREPARE_EXIT:
 	PUSH	AF
-	XOR	A
+	XOR	A	; SYS_PORT.BIOS
 	JP	EXP_FNS_PREPARE_RET
 ;*******************************
 
+RD_HEAD_DSK.FIXED:
+	LD A,7
+	JP AUTO_1C4A
 
+CMD_COPY.FIXED:
+	PUSH AF
+	CALL AUTO_05CB
+	POP AF
+	RET Z
+	INC SP
+	INC SP
+	JP AUTO_03D9
 ;*******************************
         BLOCK #3CC0 - $,255
 MAGIC_1:
@@ -6521,9 +6567,11 @@ REDIR_3D13:
 	JP NZ,EXP_FNS	;#3FF8	EXP
 	BIT 6,C
 	JP Z,AUTO_283C
-	RES 6,C
-	JP HD_CMD	;#3FF0	ROM. DI
-
+	;!TEST 06/01/2024 убираем лишние телодвижения
+	 ;RES 6,C
+	 ;JP HD_CMD	;#3FF0	ROM. DI
+	 JP EXP_FNS
+	;
 ;*****************************
         BLOCK #3CFA - $,255
 AUTO_3CFA:
@@ -6662,7 +6710,7 @@ AUTO_3DA5:
 RESET_WG:
 	LD	A,8
 	CALL	WG93_EXE
-        LD      DE,START
+        LD      DE,0
         IN      A,(WG_COM)
 	AND	2
 	LD	B,A
@@ -7031,25 +7079,25 @@ AUTO_3FEC:
 ;******************************************
 
 
-;!FIXIT Можно поправить номера функций при вызовах API и прыгать сразу в BIOS через #3FF8
+;[x]] поправлены номера функций при вызовах API и прыгает сразу в BIOS через #3FF8
 ;-------[ From TR-DOS to API 4x ]-------
 	BLOCK #3FF0-$, #FF
 HD_CMD:	PUSH AF
 	DI
-	LD A,D_ROM16ON
+	;LD A,SYS_PORT.EXTENSION
+	LD	A,1
 	OUT (SYS_PORT_ON),A
 	POP AF
 	RET
 ;---------------------------------------
 
 ;
-;----[ From API #80..#FF to TR-DOS ]-----
+;----[ From TR-DOS to API #80..#FF]-----
 	BLOCK #3FF8-$, #FF
-EXP_FNS:
-	;!TEST 06/01/2024 сохраняем состояние прерываний зачем-то
+EXP_FNS:;!TEST 06/01/2024 сохраняем состояние прерываний зачем-то
 	 ;PUSH AF
 	 ;DI	;!TODO подумать, как сохранять состояние прерываний и ничего не сломать
-	 ;XOR A	; D_ROM16OFF
+	 ;XOR A	; SYS_PORT.BIOS
 	 JP	EXP_FNS_PREPARE
 EXP_FNS_PREPARE_RET:
 	;
diff --git a/SP__48.ASM b/SP__48.ASM
index f576190..2762a51 100644
--- a/SP__48.ASM
+++ b/SP__48.ASM
@@ -19260,13 +19260,12 @@ L3C8F:  DEFB    $13, $00         ; Bright, off
         DEFB    $31, $39         ; '1', '9'
         DEFB    $13, $01         ; Bright, on
         DEFB    $38, $36         ; '8', '6'
-
+L3C97:
 ; ------
 ; UNUSED
 ; ------
 
-L3C97:
-	BLOCK   #3CF0-$,0               ;15600
+	BLOCK   #3CF0-$,0	;15600
 ;> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >;
 ;	╔═══════════════════════════╗
 ;	║ дополнения для SP48 !!    ║
diff --git a/Shared_Includes b/Shared_Includes
index 24e0629..e7e58e7 160000
--- a/Shared_Includes
+++ b/Shared_Includes
@@ -1 +1 @@
-Subproject commit 24e062942e2c89a1bcd5817cc82316b52186f86c
+Subproject commit e7e58e7b816a25137a0a253321164e863bbe782e
diff --git a/TRDOS/TR_MSD_2.ASZ b/TRDOS/TR_MSD_2.ASZ
index 141ddec..87dbeac 100644
--- a/TRDOS/TR_MSD_2.ASZ
+++ b/TRDOS/TR_MSD_2.ASZ
@@ -100,12 +100,12 @@ MSDOS_CAT:
 	CALL	AUTO_1D97	; CLS
 	CALL	OPEN_CH2
 	LD A,13
-	RST 10H
+	RST #10
 	POP DE		; СТРОКА ПОСЛЕ CAT
 
 CAT_SPACES:
 	LD A,(DE)
-	CP 20H
+	CP #20
 	JR NZ,CAT_NO_SPACE
 	INC DE
 	JR CAT_SPACES
@@ -523,44 +523,47 @@ CALC_CL_LP:
 	POP BC
 	RET
 
-HD_TX:	DB ' ERR_HD',0A0H
-HD_TX2:	DB 'HDD not found',0A0H
-MSG_3:	DB 'ERROR...',0A0H
-MSDOS_MSG: DB 'File not found...',0A0H
-NO_MEMORY: DB 'No RAM-Disk MEM',0A0H
+HD_TX:		DC	' ERR_HD '
+HD_TX2:		DC	'HDD not found '
+MSG_3:		DC	'ERROR... '
+MSDOS_MSG:	DC	'File not found... '
+NO_MEMORY:	DC	'No RAM-Disk MEM '
 
-WORDS:
-	DB 5,'CLEAR'	; очистить RAM-Disk
-	DW CLEAR_RAMD_X
-	DB 3,'CAT'	; каталог MS-DOS
-	DW MSDOS_CAT
-	DB 3,'DIR'      ; каталог MS-DOS
-	DW MSDOS_CAT
-	DB 3,'HDD'	; подключить HDD
-	DW HDD_SET
-	DB 3,'FDD'	; подключить FDD
-	DW FDD_SET
-	DB 3,'RMD'	; подключить RMD
-	DW RAMD_SET
-	DB 3,'HDT'	; тест HDD
-	DW HDD_PROG
-	DB 2,'RD'	; тест RAM-Disk space
-	DW RAMD_FAT_PROG
-	DB 4,'SAVE'	; сохранить RAM-Disk
-	DW SAVE_RMD
-	DB 4,'LOAD'	; загрузить RAM-Disk
-	DW LOAD_RMD
-	DB 4,'TBON'	; включить турбо
-	DW TB_ONOFF
-	DB 5,'TBOFF'	; выключить турбо
-	DW TB_ONOFF
-	DB 4,'INIT'	; инизиализация
-	DW INIT_RMD
-	DB 8,"SPRINTER"
-	DW SPR_1
-	DB 2,"AY"
-	DW AY8910
-	DB 0
+WORDS:	DB	5,'CLEAR'	; очистить RAM-Disk
+	DW	CLEAR_RAMD_X
+	DB	3,'CAT'		; каталог MS-DOS
+	DW	MSDOS_CAT
+	DB	3,'DIR'		; каталог MS-DOS
+	DW	MSDOS_CAT
+	DB	3,'HDD'		; подключить HDD
+	DW	HDD_SET
+	DB	3,'FDD'		; подключить FDD
+	DW	FDD_SET
+	DB	3,'RMD'		; подключить RMD
+	DW	RAMD_SET
+	DB	3,'HDT'		; тест HDD
+	DW	HDD_PROG
+	DB	2,'RD'		; тест RAM-Disk space
+	DW	RAMD_FAT_PROG
+	DB	4,'SAVE'	; сохранить RAM-Disk
+	DW	SAVE_RMD
+	DB	4,'LOAD'	; загрузить RAM-Disk
+	DW	LOAD_RMD
+	DB	4,'TBON'	; включить турбо
+	DW	TB_ONOFF
+	DB	5,'TBOFF'	; выключить турбо
+	DW	TB_ONOFF
+	DB	4,'INIT'	; инизиализация
+	DW	INIT_RMD
+	DB	8,"SPRINTER"
+	DW	SPR_1
+	DB	2,"AY"
+	DW	AY8910
+	;[ ]	07/01/2024
+	 DB	6,'SETHDD'	; /SETHDD XYZ, где X - chanel, Y - master/slave, Z - 0..3 - номер раздела
+	 DW	CHOOSE_HDD
+	;
+	DB	0
 
 ;SAVE_AUTOEXEC:
 ;	LD C,0FEH
@@ -577,18 +580,17 @@ AY8910:
 	AND A
 	RET
 
-SPR_1:
-	LD A,(DE)
+SPR_1:	LD A,(DE)
 	INC DE
-	CP #20
+	CP " "
 	JR Z,SPR_1
 	CP "1"
-	LD C,#F0	;!HARDCODE BIOS.RST_CONF.SP97_1
+	LD C,BIOS.RST_CONF.SP97_1
 	JR Z,SP_1
 	CP "2"
 	SCF
 	RET NZ
-	LD C,#F1	;!HARDCODE BIOS.RST_CONF.SP97_2
+	LD C,BIOS.RST_CONF.SP97_2
 SP_1:	LD A,(DE)
 	CP #21
 	CCF
diff --git a/TRDOS/TR_MSD_3.ASZ b/TRDOS/TR_MSD_3.ASZ
index c524135..d9ec5d5 100644
--- a/TRDOS/TR_MSD_3.ASZ
+++ b/TRDOS/TR_MSD_3.ASZ
@@ -1,6 +1,6 @@
 
 INIT_RMD:
-	LD C,#9F	;!HARDCODE BIOS.FullInit
+	LD C,BIOS.FullInit
 	;!TEST 06/01/2024 сохраняем состояние прерываний зачем-то
 	 JP EXP_FNS
 	 ;CALL EXP_FNS
@@ -30,8 +30,8 @@ INIT_RMD:
 
 RAMD_FAT_PROG:
 	CALL	AUTO_1D97	; CLS
-	CALL OPEN_CH2
-	LD HL,RAMD_FAT
+	CALL	OPEN_CH2
+	LD	HL,RAMD_FAT
 RAMD_F_L1:
 	DI
 	IN A,(PAGE3)
@@ -41,7 +41,6 @@ RAMD_F_L1:
 	LD A,C
 	LD C,(HL)
 	OUT (PAGE3),A
-;	RET_PAGE3
 	EI
 	PUSH HL
 	LD A,C
@@ -52,22 +51,28 @@ RAMD_F_L1:
 	CALL	OPEN_CH0
 	JP	AUTO_03E1
 ;***************************************************************************
+;[x] исправлен баг с неработающими командами TBON/TBOFF
 TB_ONOFF:
-	DEC DE
-	DEC DE
-	LD A,(DE)
-	CP 'F'
-	JR Z,TB_OFF_EXE
-	CP 'f'
-	JR Z,TB_OFF_EXE
-TB_ON_EXE:
-	LD C,#8F	;!HARDCODE BIOS.FN_TURBO
-	LD A,4
-	JP EXP_FNS
-TB_OFF_EXE:
-	LD C,#8F	;!HARDCODE BIOS.FN_TURBO
-	LD A,3
-	JP EXP_FNS
+	DEC	DE
+	DEC	DE
+	LD	A,(DE)
+	OR	%0010'0000
+	CP	'f'
+	LD	C,BIOS.FN_TURBO
+	LD	A,BIOS.FN_TURBO.OFF
+	JR	Z,.set
+	;
+	LD	A,BIOS.FN_TURBO.ON
+.set:	JP	EXP_FNS
+
+; TB_ON_EXE:
+; 	LD C,BIOS.FN_TURBO
+; 	LD A,4
+; 	JP EXP_FNS
+; TB_OFF_EXE:
+; 	LD C,BIOS.FN_TURBO
+; 	LD A,3
+; 	JP EXP_FNS
 ;
 ;***************************************************************************
 ;
@@ -82,19 +87,19 @@ TB_OFF_EXE:
 MSDOS_WRITE_FILE:
 	LD (CONT_BUF_ADR),HL	; адрес загрузки
 	LD (MED_START),A	; страница загрузки
-	LD A,6
+	LD A,TRDOS_ROM_CMD.WRITE
 	JR MSDOS_R_W_FILE
 ;
 MSDOS_READ_FILE:
 	LD (CONT_BUF_ADR),HL	; адрес загрузки
 	LD (MED_START),A	; страница загрузки
-	LD A,5
+	LD A,TRDOS_ROM_CMD.READ
 MSDOS_R_W_FILE:
 	LD (MED_LEN),A
-;	beg=start_claster			; Получить начальный кластер
+	; beg=start_claster. Получить начальный кластер
 	LD IX,(START_CLASTER)	; стартовый кластер
-;	next=beg
-;	max=file_len				; длина в кластерах
+	; next=beg
+	; max=file_len. длина в кластерах
 	CALL GET_FILE_CLASTERS_BC
 ;	LD A,B
 ;	CALL PRINT_HEX_A
@@ -215,10 +220,11 @@ READ_num_clasters_from_beg:
 	PUSH AF
 	LD A,(MED_LEN)
 	LD C,A
-	SUB 5
+	SUB TRDOS_ROM_CMD.READ
 	JR Z,CONT_XX1
 	DEC A
 	JR NZ,SKEEP_XX1
+	;TRDOS_ROM_CMD.WRITE
 CONT_XX1:
 	POP AF
 
@@ -497,8 +503,7 @@ READ_FAT_SEC:
 
 	LD HL,MS_FAT
 	LD A,SYS_PAGE
-	LD B,2
-	LD C,5
+	LD BC,256*2 + TRDOS_ROM_CMD.READ
 	CALL MSD_R_W_UT
 
 	POP HL
@@ -550,8 +555,12 @@ GET_FL_L2:
 ;***************************************************************************
 
 HDD_PROG:
-	LD C,BIOS.HDD_INIT and #BF
-	CALL HD_CMD
+	;!TEST 06/01/2024 убираем лишние телодвижения
+	 ;LD C,BIOS.HDD_INIT and #BF
+	 ;CALL HD_CMD
+	 LD C,BIOS.HDD_INIT
+	 CALL EXP_FNS
+	;
 	JP C,HDD_PROG_E
 	LD HL,HD_IDF_ADR+54
 	LD B,32
@@ -578,8 +587,12 @@ HDD_PROG_L:
 	RST 10H
 	POP BC
 	DJNZ HDD_PROG_L
-	LD C,BIOS.HDD_RECAL and #BF
-	CALL HD_CMD
+	;!TEST 06/01/2024 убираем лишние телодвижения
+	 ;LD C,BIOS.HDD_RECAL and #BF
+	 ;CALL HD_CMD
+	 LD C,BIOS.HDD_RECAL
+	 CALL EXP_FNS
+	;
 	JP NC,AUTO_03E1
 
 HDD_ERROR:
diff --git a/TRDOS/TR_MSD_S.ASZ b/TRDOS/TR_MSD_S.ASZ
index 2ee025a..e6fc1d0 100644
--- a/TRDOS/TR_MSD_S.ASZ
+++ b/TRDOS/TR_MSD_S.ASZ
@@ -5,7 +5,6 @@
 ;********************************************
 ;	MS-DOS utilites
 ;********************************************
-
 MSD_R_W_UT:
 	PUSH AF
 	CALL DISK_REDIR
@@ -20,7 +19,11 @@ MSD_R_W_UT:
 	;*	5. Страница ОЗУ		- A		*
 	;************************************************
 .HDD:	POP AF
-	CALL HD_CMD
+	;!TEST 06/01/2024 убираем лишние телодвижения
+	 ;CALL HD_CMD
+	 SET	6,C
+	 CALL EXP_FNS
+	;
 	RET NC
 	JP HDD_ERROR	
 	;************************************************
@@ -162,50 +165,50 @@ MSD_R_W_LOOP:
 	POP	AF
 	CALL	NZ,MSD_3F0A
 	DI
-	IN A,(PAGE2)
-	LD C,A
+	IN	A,(PAGE2)
+	LD	C,A
 	LD 	A,SYS_PAGE
 	OUT 	(PAGE2),A
-	LD	DE,(MS_BPB+SEC_SIZE-4000h)
-	LD A,C
-	OUT (PAGE2),A
+	LD	DE,(MS_BPB+SEC_SIZE-#4000)
+	LD	A,C
+	OUT	(PAGE2),A
 	EI
 	POP	HL
 	ADD	HL,DE
-	LD A,H
-	OR L
-	JR NZ,MSD_NO_PAGE
+	LD	A,H
+	OR	L
+	JR	NZ,MSD_NO_PAGE
 	DI
-	IN A,(PAGE2)
-	LD C,A
-	LD A,SYS_PAGE
-	OUT (PAGE2),A
-	LD A,(MED_START)
-	LD HL,RAMD_FAT-4000H
-	LD L,A
-	LD L,(HL)
-	LD A,C
-	OUT (PAGE2),A
+	IN	A,(PAGE2)
+	LD	C,A
+	LD	A,SYS_PAGE
+	OUT	(PAGE2),A
+	LD	A,(MED_START)
+	LD	HL,RAMD_FAT-#4000
+	LD	L,A
+	LD	L,(HL)
+	LD	A,C
+	OUT	(PAGE2),A
 	EI
-	LD A,L
-	LD HL,0C000H
-	LD (MED_START),A
+	LD	A,L
+	LD	HL,#C000
+	LD	(MED_START),A
 MSD_NO_PAGE:
 	LD	(CONT_BUF_ADR),HL
 	PUSH	HL
 
 	DI
-	IN A,(PAGE2)
-	LD C,A
+	IN	A,(PAGE2)
+	LD	C,A
 	LD 	A,SYS_PAGE
 	OUT 	(PAGE2),A
-	LD A,(DS_1440-4000H)
-	RES 0,A
-	LD (DS_1440-4000H),A
-	LD	A,(MSD_SECS-4000h)
+	LD	A,(DS_1440-#4000)
+	AND	%1111'1110
+	LD	(DS_1440-#4000),A
+	LD	A,(MSD_SECS-#4000)
 	LD 	L,A
-	LD A,C
-	OUT (PAGE2),A
+	LD	A,C
+	OUT	(PAGE2),A
 	EI
 	LD 	A,L
         LD      HL,CONT_SEC
@@ -434,16 +437,18 @@ READ_BPB:
 	LD DE,63		;!HARDCODE
 	LD A,SYS_PAGE
 	LD HL,MS_BPB
-	LD C,BIOS.HDD_READ and #BF
-	LD B,1
+	;
+	LD BC,256*1 + TRDOS_ROM_CMD.READ
 	CALL MSD_R_W_UT
 	CALL READ_BPB.PARAMS
 	RET NC
 	JP .ERROR_MSDOS
 .MAIN:	LD A,SYS_PAGE
 	LD HL,MS_BPB
-	LD C,BIOS.HDD_READ_BPB and #BF
+	LD C,TRDOS_ROM_CMD.READ_BPB
 	CALL MSD_R_W_UT
+
+	
 	;CALL BPB_PARAMS
 	;RET
 
@@ -644,8 +649,7 @@ READ_NEXT2:
 	EI
 	LD HL,MS_DIR
 	LD A,SYS_PAGE
-	LD B,1
-	LD C,5
+	LD BC,256*1 + TRDOS_ROM_CMD.READ
 	CALL MSD_R_W_UT
 	DI
 	IN A,(PAGE3)
diff --git a/TRDOS/TR_RMD_S.ASZ b/TRDOS/TR_RMD_S.ASZ
index d34babd..1cf7929 100644
--- a/TRDOS/TR_RMD_S.ASZ
+++ b/TRDOS/TR_RMD_S.ASZ
@@ -288,7 +288,7 @@ PAGE_CALC2:
 	LD B,A
 	LD C,H
 	POP HL
-	EI
+	;EI
 	RET NC
 	JP ERROR_DISK
 
@@ -399,7 +399,7 @@ CLEAR_RMD_A:
 	PUSH HL
 	PUSH DE
 	PUSH BC
-	LD C,#93	;!HARDCODE BIOS.FreeMemRMD
+	LD C,BIOS.FreeMemRMD
 	CALL EXP_FNS	; вызвать функцию
 	;!TEST 06/01/2024 сохраняем состояние прерываний зачем-то
 	 ;EI
@@ -410,9 +410,10 @@ CLEAR_RMD_A:
 	RET
 
 ;*********************************************************
+; B - ЧИСЛО ТРЕБУЕМЫХ БЛОКОВ, A - КЛЮЧ RAM-Disk
 GET_RMD_A:
-GET_RAM_BLK:		; B - ЧИСЛО ТРЕБУЕМЫХ БЛОКОВ, A - КЛЮЧ RAM-Disk
-	LD C,#92	;!HARDCODE BIOS.GetMemRMD
+GET_RAM_BLK:
+	LD C,BIOS.GetMemRMD
 	CALL EXP_FNS	; A,L - КЛЮЧ RAM-Disk - номер первого блока
 	;!TEST 06/01/2024 сохраняем состояние прерываний зачем-то
 	 ;EI
@@ -438,15 +439,18 @@ FDD_SET:
 	 ;RET
 	;
 
-HDD_SET:
-	LD C,BIOS.HDD_INIT and #BF
-	CALL HD_CMD
+HDD_SET:;!TEST 06/01/2024 убираем лишние телодвижения
+	 ;LD C,BIOS.HDD_INIT and #BF
+	 ;CALL HD_CMD
+	 LD C,BIOS.HDD_INIT
+	 CALL EXP_FNS
+	;
 	JP C,HDD_PROG_E
 
 	LD A,(OPER_DISK)
 	LD B,A
-	LD A,0
-	LD C,#CD	;!HARDCODE BIOS.HDD_TO_DRV
+	XOR A
+	LD C,BIOS.HDD_TO_DRV
 	;!TEST 06/01/2024 сохраняем состояние прерываний зачем-то
 	 JP	EXP_FNS
 	 ;CALL EXP_FNS
@@ -498,3 +502,61 @@ RAMD_SYM_OK:
 	RET
 
 
+;[ ]	07/01/2024
+CHOOSE_HDD:
+	PUSH	DE
+	LD	A,(OPER_DISK)
+	LD	C,BIOS.GET_DRV_ST
+	CALL	EXP_FNS
+	POP	DE
+	JR	C,.error
+	AND	#40	;!HARDCODE HDD
+	JR	Z,.error
+	;
+.loop:	LD	A,(DE)
+	INC	DE
+	CP	' '
+	JR	Z,.loop
+	LD	A,(DE)
+	CP	#0D
+	JR	Z,.error
+	; номер раздела
+	INC	DE
+	LD	A,(DE)
+	CP	"4"
+	JR	NC,.error
+	CP	"0"
+	JR	C,.error
+	SUB	"0"
+	RLA	
+	RLA
+	LD	C,A	
+	; master/slave
+	DEC	DE
+	LD	A,(DE)	
+	CP	"2"
+	JR	NC,.error
+	CP	"0"
+	JR	C,.error
+	SUB	"0"
+	RLA
+	OR	C
+	LD	C,A
+	; Primary/Secondary
+	DEC	DE
+	LD	A,(DE)	
+	CP	"2"
+	JR	NC,.error
+	CP	"0"
+	JR	C,.error
+	SUB	"0"
+	OR	C
+	;
+	LD	C,BIOS.HDD_PART
+	CALL	EXP_FNS
+	RET	NC
+	;
+.error:	LD	HL,MSG_3
+	JP	ERR_EXIT
+
+;bit0: Primary/Secondary, bit1 - master/slave, bit2..3: использующийся раздел в MBR
\ No newline at end of file