boot.asm - bugfixes. dssboot.asm - support fat32. Core - bugfixes

BOOT/DSSBOOT.ASM

@@ -11,10 +11,12 @@
 ;       +       System Bootstrap       +
 ;       + Initial revision 09 Nov 1998 +
 ;       +------------------------------+
+	MODULE	DSS_Boot_Loader
 
 ;	BIOS 3.06 § £à㦠¥â ®¤¨­ ᥪâ®à § £àã§ç¨ª  ¨ ¯¥à¥¤ ñâ ¥¬ã ã¯à ¢«¥­¨¥.
 	DEFINE ORIGINAL_DSS     0
         DEFINE UNIVERSAL_BOOT   1
+LOAD_SECTORS	EQU	SECTORS_OF_LOADER-1
 
         DISP     #8000
 
@@ -27,6 +29,9 @@
 
 DRIVE:		_mSYSID
 		DI
+		; ;!TEST 26/03/2024
+		;  LD	SP,#C000
+		; ;
 		LD	(DRIVE),A
 		;[ ] 17.12.2023 § £à㧪  á  ªâ¨¢­®£® à §¤¥« ,   ­¥ á ¯¥à¢®£®
 		 XOR	A
@@ -171,18 +176,15 @@ FATMSG:		DB	"FAT"
 GOOD_DRIVE:	LD	DE,#8200		;!HARDCODE 
 		LD	HL,0
 		LD	IX,2
-		LD	BC,2*256 + BIOS.DRV_READ	;!HARDCODE ¤®§ £à㧪  ¥éñ ¤¢ãå ᥪâ®à®¢ § £àã§ç¨ª 
+		LD	BC,LOAD_SECTORS*256 + BIOS.DRV_READ	; ¤®§ £à㧪  ᥪâ®à®¢ § £àã§ç¨ª 
 		LD	A,(DRIVE)
 		RST	ToBIOS_18
 		JP	C,FAIL.NULL
 		;
 		; CONTINUE
-		;!TEST 26/03/2024
-		 ;LD	SP,#C000
-		;
 		LD	HL,0
-		LD	(DISKL),HL
+		LD	(PARTITION_START_L),HL
-		LD	(DISKH),HL
+		LD	(PARTITION_START_H),HL
 		;
 		LD	BC,1*256 + BIOS.GetMem
 		RST	ToBIOS_18		;GET PAGE FOR DOS
@@ -210,7 +212,10 @@ GOOD_DRIVE:	LD	DE,#8200		;!HARDCODE
 		 OR	A
 		 PUSH	AF
 		; § £à㧪  
-		LD	HL,(FCLUSTR)
+		EXX
+		 LD	HL,(FCLUSTER_H)
+		EXX
+		LD	HL,(FCLUSTR_L)
 		LD	DE,#C000
 		CALL	LOAD_CORE		
 		; [ ] § £à㧪  system.dos ¡®«ìè¥ #4000 ¡ ©â®¢
@@ -229,8 +234,12 @@ GOOD_DRIVE:	LD	DE,#8200		;!HARDCODE
 		 LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
 		 CP	#20 + 1			; !HARDCODE ª®«-¢® § £à㦠¥¬ëå ᥪâ®à®¢
 		 JP	NC,INC_SECTOR_NUM
-		 CALL	R_F_FAT			; next cluster in chain
+		 ;CALL	R_F_FAT			; next cluster in chain
+		 CALL	READ_FROM_FAT			; next cluster in chain
 		 EX	DE,HL
+		 EXX
+		  EX	DE,HL
+		 EXX
 		 LD	DE,#C000
 		 CALL	NC,LOAD_CORE		
 .no_big_core:	;
@@ -326,7 +335,7 @@ RUN_CORE:	DI
 
 ;
 INC_SECTOR_NUM:	PUSH	DE
-		CALL	NSECTOR
+		CALL	CLUSTER_TO_SECTOR
 		LD	DE,#20		;!HARDCODE ª®«¨ç¥á⢮ ¯à®ç¨â ­­ëå ᥪâ®à®¢
 		ADD	IX,DE
 		JR	NC,.no_inc
@@ -335,7 +344,10 @@ INC_SECTOR_NUM:	PUSH	DE
 		POP	DE
 		LD	BC,RUN_CORE
 		PUSH	BC
-		PUSH	HL
+		PUSH	HL	; ¤«ï ¡ « ­á 
+		;EXX
+		PUSH	HL	; ¤«ï ¡ « ­á 
+		;EXX
 		JP	LOAD_CORE.subload
 
 ; 		CALL	.set_stack
@@ -408,20 +420,20 @@ PART_TB:	PUSH	BC
 
 YEPDOS:		;[ ] 17.12.2023 § £à㧪  á  ªâ¨¢­®£® à §¤¥« ,   ­¥ á ¯¥à¢®£®
 		 LD	A,#80
-		 CP	(IX+0)
+		 CP	(IX + _sMBR_PARTITION_RECORD.isActive)
 		 JR	NZ,PART_TB.next
 		 LD	A,4				;!HARDCODE áç¥â稪 § ¯¨á¥© ¯ àâ¨æ¨© ¢ MBR
 		 SUB	B
 		 PUSH	AF				; ­®¬¥à § £à㧮筮£® à §¤¥« 
 		;
-		LD	E,(IX+08)
+		LD	E,(IX + _sMBR_PARTITION_RECORD.Start_LBA + 0)
-		LD	D,(IX+09)
+		LD	D,(IX + _sMBR_PARTITION_RECORD.Start_LBA + 1)
-		LD	L,(IX+10)
+		LD	L,(IX + _sMBR_PARTITION_RECORD.Start_LBA + 2)
-		LD	H,(IX+11)
+		LD	H,(IX + _sMBR_PARTITION_RECORD.Start_LBA + 3)
 		PUSH	DE
 		POP	IX
-		LD	(DISKL),IX
+		LD	(PARTITION_START_L),IX
-		LD	(DISKH),HL
+		LD	(PARTITION_START_H),HL
 		LD	A,(DRIVE)
 		LD	DE,BOOT_BUFFER
 		LD	BC,1*256 + BIOS.DRV_READ
@@ -438,7 +450,7 @@ YEPDOS:		;[ ] 17.12.2023
 
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-;/*
+/*
 GET_BPB:	LD	IX,#0000
 		LD	HL,#0000
 		LD	DE,BOOT_BUFFER
@@ -551,8 +563,8 @@ GET_BPB:	LD	IX,#0000
 .BPB_FAT:	LD	(FatBuffer.FAT_TYPE),A
 		;LD	(FatBuffer.END_CHAIN_CLUSTER_L),HL
 		;
-		LD	IX,(DISKL)
+		LD	IX,(PARTITION_START_L)
-		LD	HL,(DISKH)
+		LD	HL,(PARTITION_START_H)
 		LD	DE,(FatBuffer.FAT1_SEC_L)
 		LD	BC,#0000
 		ADD	IX,DE
@@ -583,7 +595,7 @@ GET_BPB:	LD	IX,#0000
 
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-/*
+;/*
 GET_BPB:	LD	IX,#0000
 		LD	HL,#0000
 		LD	DE,BOOT_BUFFER
@@ -639,7 +651,7 @@ GET_BPB:	LD	IX,#0000
 		;
 	;	;R08 ; [x] fat32
 	;	 LD	HL,BOOT_BUFFER
-	;	 LD	DE,CORE_BUFFERS.BootSector	
+	;	 LD	DE,BootSector	
 	;	 LD	BC,_sBOOT_SECTOR_PARAMS_FAT32	; size
 	;	 LDIR
 		;
@@ -647,20 +659,21 @@ GET_BPB:	LD	IX,#0000
 		CP	#F0
 		RET	C
 		;
-		; LD	HL,(BOOT_BUFFER + BOOT_SECTOR.BytesPerSector)
+		LD	HL,(BOOT_BUFFER + BOOT_SECTOR.BytesPerSector)
-		; LD	(FatBuffer.BytesPerSector),HL
+		LD	(FatBuffer.BytesPerSector),HL
-		; LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
+		LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
-		; LD	(FatBuffer.SectorsPerCluster),A
+		LD	(FatBuffer.SectorsPerCluster),A
 		; calc. first sector FAT
 		LD	HL,(BOOT_BUFFER + BOOT_SECTOR.RESERVED_SECTORS)
 		LD	(FatBuffer.FAT1_SEC_L),HL  ; low word first sector FAT #1
-	;LD	(FatBuffer.FAT2_SEC_L),HL  ; low word first sector FAT #2
+		LD	(FatBuffer.FAT2_SEC_L),HL  ; low word first sector FAT #2
 		; fat32 
 		 XOR	A
 		 LD	B,A
 		 LD	C,A
 		 LD	(FatBuffer.FAT1_SEC_H),BC  ; high word first sector FAT #1	; fat32
-	; LD	(FatBuffer.FAT2_SEC_H),BC  ; high word first sector FAT #1	; fat32
+		 LD	(FatBuffer.FAT2_SEC_H),BC  ; high word first sector FAT #1	; fat32
+		 LD	(FatBuffer.RootDirFirstSector_H),BC
 		 LD	(FatBuffer.SectorsPerFAT_H),A				; fat32
 		;
 		;
@@ -692,9 +705,8 @@ GET_BPB:	LD	IX,#0000
 		JR	NZ,.loop1
 		;
 		LD	(FatBuffer.RootDirFirstSector_L),HL  ; first sector DIR
-
+		LD	(FatBuffer.FirstDataSector_H),BC
-	;LD	BC,(FatBuffer.BytesPerSector)
+		LD	BC,(FatBuffer.BytesPerSector)
-	LD	BC,(BOOT_BUFFER + BOOT_SECTOR.BytesPerSector)
 		LD	A,B
 		AND	A
 		;
@@ -736,10 +748,10 @@ GET_BPB:	LD	IX,#0000
 		LD	(FatBuffer.FirstDataSector_L),HL
 		; B = 0
 		;
-	;LD	HL,(FatBuffer.BytesPerSector)
+	LD	HL,(FatBuffer.BytesPerSector)
-	LD	HL,(BOOT_BUFFER + BOOT_SECTOR.BytesPerSector)
+	;LD	HL,(BOOT_BUFFER + BOOT_SECTOR.BytesPerSector)
-	;LD	A,(FatBuffer.SectorsPerCluster)
+	LD	A,(FatBuffer.SectorsPerCluster)
-	LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
+	;LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
 		;!TODO FATcacheSize
 		; calc. cluster size
 		 XOR	1		
@@ -774,17 +786,7 @@ GET_BPB:	LD	IX,#0000
 		SBC	HL,DE
 		;
 .HDDBIG:	CALL	SectorToCluster
-; 		LD	A,(FatBuffer.SectorsPerCluster)
+		INC	HL
-; 		SCF 
-; .loop7:		RRA 
-; 		JR	C,.loop7_exit
-; 		RR	B
-; 		RR	C
-; 		RR	H
-; 		RR	L
-; 		JP	.loop7
-		;
-.loop7_exit:	INC	HL
 		LD	(FatBuffer.MaxClusterLow),HL
 		LD	A,L
 		OR	H
@@ -838,8 +840,8 @@ GET_BPB:	LD	IX,#0000
 		POP	DE	; Total Sectors low
 		; HL:DE = DataSec
 		;
-	;LD	A,(FatBuffer.SectorsPerCluster)
+	LD	A,(FatBuffer.SectorsPerCluster)
-	LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
+	;LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
 		; HL:DE / A  =>  DE:BC, H=0, L - ®áâ â®ª
 		CALL	DIV_for_SPC
 		; ¢ëïá­ï¥¬ à §à來®áâì FAT
@@ -906,12 +908,12 @@ GET_BPB:	LD	IX,#0000
 		EXX
 		 LD	HL,(BOOT_BUFFER + BOOT_SECTOR.RootDirStartCluster)
 		 LD	(FatBuffer.RootDirStartCluster_L),HL
-		 LD	BC,(BOOT_BUFFER + BOOT_SECTOR.RootDirStartCluster+2)
+		 LD	DE,(BOOT_BUFFER + BOOT_SECTOR.RootDirStartCluster+2)
-		 LD	(FatBuffer.RootDirStartCluster_H),BC
+		 LD	(FatBuffer.RootDirStartCluster_H),DE
 		 ;
-		 CALL	CLUSTER_TO_SECTOR
+		 CALL	CLUSTER_TO_SECTOR.no_prepare
-		 LD	(FatBuffer.RootDirFirstSector_L),HL
+		 LD	(FatBuffer.RootDirFirstSector_L),IX
-		 LD	(FatBuffer.RootDirFirstSector_H),BC
+		 LD	(FatBuffer.RootDirFirstSector_H),HL
 		 ;
 		 LD	HL,(BOOT_BUFFER + BOOT_SECTOR.FSINFO_Sector)
 		 LD	(FatBuffer.FSINFO_Sector),HL
@@ -931,89 +933,11 @@ GET_BPB:	LD	IX,#0000
 		LD	DE,FatBuffer.BPB_LABEL
 		LD	BC,11	;!HARDCODE
 		LDIR
-		;
-	SET_PAGE_X FATPAGE
-		PUSH	AF
 		LD	DE,0
 		CALL	READ_FAT_TABLE
-		POP	AF
+		AND	A
-		OUT	(SLOT3),A
-		;
-	; “áâ ­®¢¨âì ­ ç «ì­ë© ª« áâ¥à ¤«ï ç⥭¨ï
-		LD	A,(FatBuffer.FAT_TYPE)
-		CP	FAT_TYPE.x32
-		JR	Z,.set_FSinfo
-		;
-		LD	HL,#0001
-		LD	(G_CLUST.low),HL
-		DEC	L
-		LD	(G_CLUST.high),HL
-		;
-		DEC	HL
-		LD	(FatBuffer.FREE_CLUSTERS_COUNT_L),HL
-	 	LD	(FatBuffer.FREE_CLUSTERS_COUNT_H),HL
-		XOR	A
 		RET
 		;
-.set_FSinfo:	CALL	READ_FSinfo
-		; !FIXIT ¯à®¢¥àª  ­  ®è¨¡ªã
-		;
-		; ¯à®¢¥àª  ®¤­®© ¨§ á®â­¨ áà ­ëå ᨣ­ âãà
-		LD	HL,(BOOT_BUFFER + _sFSinfo.DATA_SIGNATURE)
-		LD	DE,(BOOT_BUFFER + _sFSinfo.DATA_SIGNATURE + 2)
-		LD	BC,#7272
-		SBC	HL,BC
-		JR	NZ,.error
-		EX	DE,HL
-		LD	DE,#6141
-		SBC	HL,DE
-		JR	NZ,.error
-	; FREE_CLUSTERS_COUNT
-		 LD	BC,(BOOT_BUFFER + _sFSinfo.FREE_CLUSTERS_COUNT)
-		 LD	DE,(BOOT_BUFFER + _sFSinfo.FREE_CLUSTERS_COUNT+2)
-		 ; CF = 0
-		 CALL	.check_cluster
-		 JR	NC,.skip_FFFF
-		 ;
-		 LD	B,#FF
-		 LD	C,B
-		 LD	D,B
-		 LD	E,B
-		 ;
-.skip_FFFF:	 LD	(FatBuffer.FREE_CLUSTERS_COUNT_L),BC
-		 LD	(FatBuffer.FREE_CLUSTERS_COUNT_H),DE		
-		;
-	; FIRST_FREE_CLUSTER
-		LD	BC,(BOOT_BUFFER + _sFSinfo.FIRST_FREE_CLUSTER)
-		LD	DE,(BOOT_BUFFER + _sFSinfo.FIRST_FREE_CLUSTER+2)
-		; CF = 0
-		CALL	.check_cluster
-		JR	C,.error
-		;
-		LD	(G_CLUST.high),DE
-		LD	(G_CLUST.low),BC
-		XOR	A
-.error:		LD	(FatBuffer.UPD_FSINFO),A
-		RET	Z
-		;!TODO FREE_CLUSTERS_COUNT
-		 ;LD	HL,#FFFF
-		 ;LD	(FatBuffer.FREE_CLUSTERS_COUNT_L),HL	
-		 ;LD	(FatBuffer.FREE_CLUSTERS_COUNT_H),HL
-		;
-		XOR	A
-		LD	H,A
-		LD	L,2	
-		LD	(G_CLUST.low),HL
-		LD	L,H
-		LD	(G_CLUST.high),HL
-		RET
-		;
-		;!TODO MaxCluster - ¬ ªá¨¬ «ì­® ¤®¯ãáâ¨¬ë© ¨«¨ ­  1 ¡®«ìè¥ ¬ ªá¨¬ «ì­® ¤®¯ãá⨬®£®?
-.check_cluster:	LD	HL,(FatBuffer.MaxClusterLow)
-		SBC	HL,BC
-		LD	HL,(FatBuffer.MaxClusterHigh)
-		SBC	HL,DE
-		RET
 ;;;;;;;;
 
 ; --> BC:HL - Sector
@@ -1022,8 +946,8 @@ SectorToCluster:
 		LD	A,B
 		AND	#0F
 		LD	B,A
-	;LD	A,(FatBuffer.SectorsPerCluster)
+	LD	A,(FatBuffer.SectorsPerCluster)
-	LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
+	;LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
 		SCF 
 .loop:		RRA 
 		RET	C
@@ -1033,15 +957,85 @@ SectorToCluster:
 		RR	L
 		JP	.loop	
 ;
-*/
+; HL:DE / A  =>  DE:BC, H=0, L - ®áâ â®ª
+DIV_for_SPC:
+	LD	C,A
+	DEC	A
+	JR	Z,.exit
+	;
+	AND	E
+	LD	B,A	; ®áâ â®ª
+	LD	A,C
+	RRCA
+	;
+.loop:	SRL	H
+	RR	L 
+	RR	D
+	RR	E
+	RRCA
+	JP	NC,.loop
+	LD	A,B
+.exit:	LD	B,D
+	LD	C,E
+	EX	DE,HL
+	LD	H,0
+	LD	L,A
+	RET
+;
+;NSECTOR:
+; in:	HL':HL - CLUSTER
+; out:	HL:IX  - SECTOR
+CLUSTER_TO_SECTOR:
+		EXX
+		 PUSH	HL
+		EXX
+		POP	DE
+		; DE:HL - cluster
+		;
+.no_prepare:	PUSH	BC
+		LD	BC,-2
+		ADD	HL,BC
+		JR	C,.no_dec_de
+		DEC	DE
+.no_dec_de:	; cluster = cluster - 2
+		;	
+		LD	A,(FatBuffer.SectorsPerCluster)
+		XOR	1
+		JR	Z,.skip
+		;
+		RRA
+.loop:		ADD	HL,HL
+		RL	E
+		RL	D
+		;
+		RRA	
+		JP	NC,.loop
+		;
+.skip:		EX	DE,HL
+		LD	XL,E
+		LD	XH,D
+		LD	DE,(FatBuffer.FirstDataSector_L)
+		ADD	IX,DE
+		LD	DE,(FatBuffer.FirstDataSector_H)
+		ADC	HL,DE
+		;
+		POP	BC
+		RET 
+;
+;*/
 ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
 ; ¯®¨áª system.dos
 GETROOT:	LD	HL,(FatBuffer.RootDirFirstSector_H)
 		LD	IX,(FatBuffer.RootDirFirstSector_L)
-		LD	BC,(DISKL)
+		LD	BC,(PARTITION_START_L)
-		LD	DE,(DISKH)
+		LD	DE,(PARTITION_START_H)
+		LD	A,(FatBuffer.FAT_TYPE)
+		CP	FAT_TYPE.x32
 		LD	A,(FatBuffer.DirSizeInSectors)
+		JR	NZ,.NEXTSEC
+		;
+		LD	A,(FatBuffer.SectorsPerCluster);!FIXIT ¯à®çâñâ ⮫쪮 ¯¥à¢ë© ª« áâ¥à ä ©«®¢ ­  FAT32
 .NEXTSEC:	PUSH	AF
 		ADD	IX,BC
 		ADC	HL,DE
@@ -1049,7 +1043,7 @@ GETROOT:	LD	HL,(FatBuffer.RootDirFirstSector_H)
 		PUSH	IX
 		PUSH	HL
 		LD	BC,1*256 + BIOS.DRV_READ
-		LD	DE,DIR
+		LD	DE,DIR_BUFFER
 		LD	A,(DRIVE)
 		RST	ToBIOS_18
 		CALL	SEARCH
@@ -1069,7 +1063,7 @@ GETROOT:	LD	HL,(FatBuffer.RootDirFirstSector_H)
 
 ;
 SEARCH:		LD	C,17		;HANDELS PER SECTOR  512/32 + 1
-		LD	IX, DIR - FAT_DIRECTORY_RECORD
+		LD	IX, DIR_BUFFER - FAT_DIRECTORY_RECORD
 .SKIPNAM:	LD	DE,FAT_DIRECTORY_RECORD
 		ADD	IX,DE
 		DEC	C
@@ -1108,12 +1102,27 @@ SEARCH:		LD	C,17		;HANDELS PER SECTOR  512/32 + 1
 		AND	A	; ­  ¢ë室¥ ZF = CF = 0
 		RET
 
-; ; HL - CLUSTER
+; HL - CLUSTER
-; ; DE - ADDRESS
+; DE - ADDRESS
-; ;!TODO ᤥ« âì âãâ ®¯à¥¤¥«¥­¨¥ à §¬¥à  SYSTEM.DOS ¨ ¢®§¬®¦­®áâì § £à㧨âì ¡®«ìè¥ 1 áâà ­¨æë
+; !TODO ᤥ« âì âãâ ®¯à¥¤¥«¥­¨¥ à §¬¥à  SYSTEM.DOS 
+; [ ] ¨ ¢®§¬®¦­®áâì § £à㧨âì ¡®«ìè¥ 1 áâà ­¨æë
 LOAD_CORE:	LD	(READMEM),DE
 .loop:		PUSH	HL
-		CALL	NSECTOR
+		EXX
+		 PUSH	HL
+		EXX
+		;
+		CALL	CLUSTER_TO_SECTOR
+		;
+		;LD	A,(FatBuffer.FAT_TYPE)
+		; CP	FAT_TYPE.x32
+		; JR	NZ,.skip_it
+	;
+	LD	DE,(PARTITION_START_L)
+	ADD	IX,DE
+	LD	DE,(PARTITION_START_H)
+	ADC	HL,DE
+;.skip_it:	;
 		LD	DE,(READMEM)
 		LD	A,(BOOT_BUFFER + BOOT_SECTOR.SectorsPerCluster)
 .max_sectors+1:	CP	#20
@@ -1126,6 +1135,10 @@ LOAD_CORE:	LD	(READMEM),DE
 		EX	AF,AF'
 		LD	A,(DRIVE)
 		RST	ToBIOS_18
+
+		EXX
+		 POP	HL
+		EXX
 		POP	HL
 		;AND	A
 		RET
@@ -1141,6 +1154,9 @@ LOAD_CORE:	LD	(READMEM),DE
 		LD	DE,(FatBuffer.BytesPerCluster)
 		ADD	HL,DE
 		LD	(READMEM),HL
+		EXX
+		 POP	HL
+		EXX
 		POP	HL
 		CCF
 		RET	NC
@@ -1150,8 +1166,12 @@ LOAD_CORE:	LD	(READMEM),DE
 		 LD	(BIG_CORE),A
 		 RET	Z
 		;
-		CALL	R_F_FAT
+		CALL	READ_FROM_FAT
+	;CALL	R_F_FAT
 		RET	C
+		EXX
+		 EX	DE,HL
+		EXX
 		EX	DE,HL
 		JP	.loop
 
@@ -1240,7 +1260,7 @@ LOAD_CORE:	LD	(READMEM),DE
 
 
 ;
-
+/*
 ; -->    HL - CLUSTER
 ; <-- HL:IX - SECTOR
 NSECTOR:	LD	DE,0
@@ -1267,13 +1287,260 @@ NSECTOR:	LD	DE,0
 		LD	E,A
 		ADC	HL,DE
 		;
-		LD	DE,(DISKL)
+		LD	DE,(PARTITION_START_L)
 		ADD	IX,DE
-		LD	DE,(DISKH)
+		LD	DE,(PARTITION_START_H)
 		ADC	HL,DE
 		RET 
+*/
+
+
+;------------------------------------------------------------------------------------------------
+; <20>à®ç¨â âì ¨§ ª¥è  FAT-  ­®¬¥à á«¥¤. ª« áâ¥à 
+; ¢å®¤:	 hl  -  ­®¬¥à ª« áâ¥à  (¬« ¤è¥¥ á«®¢®)
+;	 hl' -  ­®¬¥à ª« áâ¥à  (áâ à襥 á«®¢®. ⮫쪮 ¤«ï FAT32)
+; ¢ë室: hl  -  ­®¬¥à ª« áâ¥à  (¬« ¤è¥¥ á«®¢®)
+;	 hl' -  ­®¬¥à ª« áâ¥à  (áâ à襥 á«®¢®)
+;        de  -  ­®¬¥à á«¥¤. ª« áâ¥à  (¬« ¤è¥¥ á«®¢®)
+;        de' -  ­®¬¥à á«¥¤. ª« áâ¥à  (áâ à襥 á«®¢®)
+;	 	¥á«¨ DE':DE = 0, â® ª« áâ¥à HL':HL ᢮¡®¤¥­
+;        CF  -  ª®­¥æ 楯®çª¨
+;------------------------------------------------------------------------------------------------
+READ_FROM_FAT:	CALL	CHECK_CLUSTER_IS_SMALLER
+		RET	C
+		PUSH	HL
+		;
+	IN	A,(SLOT3)
+	PUSH	AF
+	LD	A,SHARED_PAGE
+	OUT	(SLOT3),A
+		;
+		LD	A,(FatBuffer.FAT_TYPE)
+		CP	FAT_TYPE.x16
+		JR	C,.FAT12
+		JR	NZ,.FAT32
+		; fat16, ¯à®áâ® ç¨â âì á«¥¤. ­®¬¥à
+.FAT16:		CALL	GET_FAT16_CELL
+		LD	E,(HL)			; ¯à®ç¨â âì ­®¬¥à ª« áâ¥à 
+		INC	HL
+		LD	D,(HL)
+		;
+		LD	HL,SERVICE_SECTORS.FAT16
+.exit:		POP	AF
+		OUT	(SLOT3),A
+		; ®¡­ã«ï¥¬ CF ¨ ãáâ ­ ¢«¨¢ ¥¬ ª®¤ ®è¨¡ª¨ = DssErr.sys.NO_ERROR
+		XOR	A
+		; ¯à®¢¥àª  ­  á«ã¦. ª« áâ¥àë
+		SBC	HL,DE
+		POP	HL
+		;!FIXIT fat32 ¯¥à¥áâà å®¢ª 
+		EXX	
+		 LD	H,A
+		 LD	L,A
+		 LD	D,A
+		 LD	E,A
+		EXX
+		RET 
+		;
+		;
+.FAT12:		CALL	GET_FAT12_CELL
+		LD	E,(HL)
+		INC	HL
+		LD	D,(HL)
+		LD	HL,SERVICE_SECTORS.FAT12
+		JR	NC,.Correct_2
+.Correct_1:	LD	A,E
+		AND	#F0
+		DUP	4	; ¢¯à ¢® ­  4 ¡¨âa
+		 RR	D
+		 RRA
+		EDUP
+		LD	E,A
+		JR	.exit
+		;
+.Correct_2:	LD	A,D
+		AND	#0F
+		LD	D,A
+		JR	.exit
+		;
+.FAT32:		EXX
+		 PUSH	HL
+		EXX
+		;
+		CALL	GET_FAT32_CELL
+		; ¯à®ç¨â âì ¬« ¤è¥¥ á«®¢® ­®¬¥à  ª« áâ¥à 
+		LD	E,(HL)
+		INC	HL
+		LD	D,(HL)
+		INC	HL
+		; ¯à®ç¨â âì áâ à襥 á«®¢® ­®¬¥à  ª« áâ¥à 
+		LD	A,(HL)
+		INC	HL
+		EX	AF,AF'
+		LD	A,(HL)
+		EXX
+		 AND	#0F
+		 LD	D,A
+		 EX	AF,AF'
+		 LD	E,A
+		EXX
+		; ®¡­ã«ï¥¬ CF ¨ ãáâ ­ ¢«¨¢ ¥¬ ª®¤ ®è¨¡ª¨ = DssErr.sys.NO_ERROR
+		XOR	A
+		; ¯à®¢¥àª  ­  á«ã¦. ª« áâ¥àë ¬« ¤è¥£® á«®¢  ª« áâ¥à 
+		LD	HL,SERVICE_SECTORS.FAT32.Low
+		SBC	HL,DE
+		; ¯à®¢¥àª  ­  á«ã¦. ª« áâ¥àë áâ à襣® á«®¢  ª« áâ¥à 
+		EXX
+		 LD	HL,SERVICE_SECTORS.FAT32.High
+		 SBC	HL,DE
+		 POP	HL
+		EXX
+		POP	BC
+		LD	A,B
+		OUT	(SLOT3),A
+		POP	HL
+		LD	A,0
+		RET
+		;
+;¢å®¤:	HL - ­®¬¥à ª« áâ¥à 
+;¢ë室:	HL -  ¤à¥á ­ã¦­®© ï祩ª¨ ¢ áâà ­¨æ¥ FATPAGE
+;	CF - çñâ­ë©/­¥çñâ­ë©  ¤à¥á ª« áâ¥à 
+GET_FAT12_CELL:	LD	D,H
+		LD	E,L
+		SRL	H
+		RR	L			; ᤢ¨£ ¢¯à ¢® ç¥à¥§ CF
+		PUSH	AF			; á®åà. ä« £			
+		ADD	HL,DE			; CLUSTER * 1.5
+		;
+		IF FAT_CACHE.Size_12 < #1800
+		 ;!FIXIT ®¯â¨¬¨§¨à®¢ âì
+			LD	A,H
+			LD	B,H
+			;
+			AND	#1F
+			;AND	FAT_CACHE.Size_Mask_16
+			;
+			LD	H,A
+			LD	A,B
+			;
+			RLCA  
+			RLCA 
+			RLCA 
+			;DUP FAT_CACHE.Degree_16
+			; RRCA 
+			;EDUP
+			AND	#07
+			;AND	FAT_CACHE.Part_Mask_16
+			;
+			; [ ] ¯®¬¥­ï«áï ¢å®¤ ¢ ¯à®æ¥¤ãàã READ_FAT_TABLE. <20> ­ìè¥ ­®¬¥à ¡«®ª  ¢ ॣ. A ¯¥à¥¤ ¢ «áï
+			 ; LD	BC,(FatBuffer.CacheBlock)	; BC - BLOCK FAT IN CASH
+			 ; CP	C
+			 LD	DE,(FatBuffer.CacheBlock)	; BC - BLOCK FAT IN CASH
+			 CP	E
+			 LD	E,A
+			;
+			CALL	NZ,READ_FAT_TABLE	; ¯à®ç¨â âì ¢ ª¥è 16 ᥪâ®à®¢ FAT- 
+		ENDIF
+		;
+		LD	DE,FATPAGE.cache
+		ADD	HL,DE
+		POP	AF
+		RET
+		;
+;¢å®¤:	HL - ­®¬¥à ª« áâ¥à 
+;¢ë室:	HL -  ¤à¥á ­ã¦­®© ï祩ª¨ ¢ áâà ­¨æ¥ FATPAGE
+GET_FAT16_CELL:	LD	A,H
+		LD	B,H
+		;AND	#0F
+		AND	FAT_CACHE.Size_Mask_16
+		LD	H,A
+		LD	A,B
+		; A=A/16	; A - BLOCK FAT (1 BLOCK = 8192 BYTES)
+		DUP FAT_CACHE.Degree_16
+		 RRCA 
+		EDUP
+		;AND	#0F	
+		AND	FAT_CACHE.Part_Mask_16
+		;
+		ADD	HL,HL			; HL - FAT OFFSET (FROM	CASH)
+		; [x] fat32 ¯®¬¥­ï«áï ¢å®¤ ¢ ¯à®æ¥¤ãàã READ_FAT_TABLE. <20> ­ìè¥ ­®¬¥à ¡«®ª  ¢ ॣ. A ¯¥à¥¤ ¢ «áï
+		 ; LD	BC,(FatBuffer.CacheBlock)	; BC - BLOCK FAT IN CASH
+		 ; CP	C
+		 LD	DE,(FatBuffer.CacheBlock)	; BC - BLOCK FAT IN CASH
+		 CP	E
+		 LD	E,A
+		;
+		CALL	NZ,READ_FAT_TABLE	; A != C - READ NEW BLOCK FAT
+		LD	DE,FATPAGE.cache	; ­ ç «® ª¥è  FAT- 
+		ADD	HL,DE			; ­  ï祩ªã FAT
+		RET
+		;
+;¢å®¤:	HL':HL - ­®¬¥à ª« áâ¥à 
+;¢ë室:	HL -  ¤à¥á ­ã¦­®© ï祩ª¨ ¢ áâà ­¨æ¥ FATPAGE
+GET_FAT32_CELL:	; ¤¢¨£ ¥¬ ¢«¥¢® HL':H
+		LD	A,H
+		EXX
+		 LD	C,A
+		 LD	A,H
+		 AND	FAT_CACHE.Size_Mask_32 ; #0F
+		 LD	H,A
+		 LD	A,C
+		 ;
+		 LD	B,FAT_CACHE.Degree	; 4 ᤢ¨£ 
+.loop_block:	 RLCA 		; << H
+		 RL	L	; << L'
+		 RL	H	; << H'
+		 DJNZ	.loop_block
+		EXX
+		; ‚ ¨â®£¥ âãâ ¢ HL' ­®¬¥à ¡«®ª  FAT
+		;
+		; HL - FAT32 OFFSET (FROM CASH)
+		LD	A,H
+		AND	FAT_CACHE.Size_Mask_32 ; #0F
+		LD	H,A
+		ADD	HL,HL
+		ADD	HL,HL
+		PUSH	HL	; [ç] fat32 á®å࠭塞 ­  á«ãç ©, ¥á«¨ READ_FAT_TABLE ¨á¯®àâ¨â
+		AND	A
+		;
+		EXX
+		EX	DE,HL
+		LD	HL,(FatBuffer.CacheBlock)	; BC - BLOCK FAT IN CASH
+		SBC	HL,DE
+		CALL	NZ,READ_FAT_TABLE	; A != C - READ NEW BLOCK FAT
+		POP	HL
+		LD	DE,FATPAGE.cache	; ­ ç «® ª¥è  FAT- 
+		ADD	HL,DE			; ­  ï祩ªã FAT
+		RET
+		;
+; [x] fat32 ;!TEST
+; ¢å®¤:	 hl  =  ¬« ¤è¥¥ á«®¢® ­®¬¥à  ª« áâ¥à  ¤«ï áà ¢­¥­¨ï á FAT_Max_Cluster
+;	 hl' =  áâ à襥 á«®¢® ­®¬¥à  ª« áâ¥à  ¤«ï áà ¢­¥­¨ï á FAT_Max_Cluster (⮫쪮 ¤«ï fat32)
+CHECK_CLUSTER_IS_SMALLER:
+		LD	A,(FatBuffer.FAT_TYPE)
+		XOR	FAT_TYPE.x32
+		JR	NZ,.low			; Z=0 ¯à®¢¥à塞 ¬« ¤è¥¥ á«®¢® ­®¬¥à  ª« áâ¥à 
+		; ¯à®¢¥à塞 áâ à襥 á«®¢® ­®¬¥à  ª« áâ¥à  
+		EXX
+		 EX	DE,HL
+		 LD	HL,(FatBuffer.MaxClusterHigh)
+		 ; CF = 0
+		 SBC	HL,DE
+		 EX	DE,HL
+		EXX
+		LD	A,DSS_Error.sys.DISK_FULL
+		RET	C
+		RET	NZ
+		; ¯à®¢¥à塞 ¬« ¤è¥¥ á«®¢® ­®¬¥à  ª« áâ¥à  
+.low:		EX	DE,HL
+		LD	HL,(FatBuffer.MaxClusterLow)
+		SBC	HL,DE
+		EX	DE,HL
+		LD	A,DSS_Error.sys.DISK_FULL
+		RET
+		;
+/*
 ;-----------------
-;!TODO ᤥ« âì íâ® ¬ ªà®á ¬¨ ¨«¨ ¨­ª«î¤ ¬¨ ã­¨¢¥àá «ì­ë¬¨. ¯®¢â®àïîâáï ¢ ¤®á¥ ¨ ¥éñ £¤¥-â®
 ; HL - CLUSTER
 ; DE - (CLUSTER)
 R_F_FAT:	PUSH	HL
@@ -1358,8 +1625,11 @@ R_F_FAT:	PUSH	HL
 		; POP	HL
 		; RET
 ;
+*/
+;
 
 ;
+/*
 RE_FAT:		PUSH	HL
 		LD	L,A
 		LD	H,0
@@ -1374,10 +1644,10 @@ RE_FAT:		PUSH	HL
 		EX	DE,HL
 		JR	NC,.NOINX
 		INC	IX
-.NOINX:		LD	HL,(DISKL)
+.NOINX:		LD	HL,(PARTITION_START_L)
 		ADD	HL,DE
 		EX	DE,HL
-		LD	BC,(DISKH)
+		LD	BC,(PARTITION_START_H)
 		JR	NC,.NOINX2
 		INC	IX
 .NOINX2:	ADD	IX,BC
@@ -1391,18 +1661,123 @@ RE_FAT:		PUSH	HL
 		RST	ToBIOS_18
 		POP	HL
 		RET
+*/
 ;
-
+;RE_FAT:
-
+;RX01
+; <20>à®ç¨â âì ¢ ª¥è •• ᥪâ®à®¢ FAT- 
+; DE - NEW FAT BLOCK
+READ_FAT_TABLE:	PUSH	HL
+		;
+		EX	DE,HL
+		LD	(FatBuffer.CacheBlock),HL
+		;
+		CALL	GET_SECTOR_OF_FAT
+		;
+		; BC:HL - ­®¬¥à «®£.ᥪâ®à 
+		LD	DE,(FatBuffer.FAT1_SEC_L)
+		ADD	HL,DE
+		EX	DE,HL
+		LD	XH,D
+		LD	XL,E
+		LD	HL,(FatBuffer.FAT1_SEC_H)
+		; JR	NC,.no_inc
+		; INC	HL
+.no_inc:	ADC	HL,BC
+		; HL:IX - SECTOR FAT FOR READING
+		;
+		LD	DE,(PARTITION_START_L)
+		ADD	IX,DE
+		LD	DE,(PARTITION_START_H)
+		ADC	HL,DE
+		LD	DE,FAT_SECTORS_BUFFER
+	IN	A,(SLOT3)
+	PUSH	AF
+	LD	A,SHARED_PAGE
+	OUT	(SLOT3),A
+		;
+		LD	A,(FatBuffer.FAT_TYPE)
+		XOR	FAT_TYPE.x32
+		LD	BC,FAT_CACHE.Sectors_16*256 + BIOS.DRV_READ
+		JR	NZ,.next
+		LD	B,FAT_CACHE.Sectors_32
+.next:		LD	A,(DRIVE)
+		RST	ToBIOS_18
+		;
+	POP	AF
+	OUT	(SLOT3),A	
+ 		POP	HL
+		RET 
+		;
+;FAT_BLOCK * Sectors_in_Block = SECTOR_OF_FAT
+;  in:	  HL - Cache block
+; out:	C:HL - logical number
+;	   B = 0
+GET_SECTOR_OF_FAT:
+		LD	A,(FatBuffer.FAT_TYPE)
+		LD	B,FAT_CACHE.Degree_32				;!FIXIT ᤥ« âì ç¥à¥§ ¯¥à¥¬¥­­ãî
+		XOR	FAT_TYPE.x32
+		JR	Z,.next
+		LD	B,FAT_CACHE.Degree				;!FIXIT ᤥ« âì ç¥à¥§ ¯¥à¥¬¥­­ãî
+		XOR	A
+.next:		LD	C,A
+		;
+.loop:		ADD	HL,HL	;x2
+		ADC	A,C
+		DJNZ	.loop
+		;
+		LD	C,A
+		RET
 ////////////////////////////////////////////////////////////////////////
 ; Area for boot	sector [512Bytes]
 ;BOOT		_sBOOT_SECTOR_PARAMS = $
 BOOT_BUFFER		EQU	$
-DIR			EQU	BOOT_BUFFER+512
+DIR_BUFFER		EQU	BOOT_BUFFER+512
-;
-FAT_SECTORS_BUFFER	EQU	DIR+512
-VALUE			EQU	3*512+FAT_SECTORS_BUFFER
 ;
+;FAT_SECTORS_BUFFER	EQU	DIR_BUFFER+512
+;VALUE			EQU	3*512+FAT_SECTORS_BUFFER
+FAT_SECTORS_BUFFER	EQU	#C000
+VALUE			EQU	DIR_BUFFER+512
+
+FatBuffer	_sysFatBuffer = VALUE
+/*
+.DRIVE:			BYTE	#FF
+.FAT_TYPE:		BYTE	#00		; TYPE FAT (12 - 12bit, 16 - 16bit, 32 - 32bit)	; fat32
+.CacheBlock:		WORD	#0000
+.CacheUpdated:		BYTE	#00
+.RootDirStartCluster_L:	WORD	#0000
+.RootDirStartCluster_H:	WORD	#0000		; fat32
+.FAT1_SEC_L:		WORD	#0000		; MSD_FAT_SEC first sector FAT (FAT_FRM)
+.FAT1_SEC_H:		WORD	#0000		; fat32
+.FAT2_SEC_L:		WORD	#0000
+.FAT2_SEC_H:		WORD	#0000		; fat32
+.Number_Of_FATs		BYTE	#02
+.SectorsPerFAT_L	WORD	#0000
+.SectorsPerFAT_H	BYTE	#00
+.RootDirFirstSector_L:	WORD	#0000		; MSD_CAT_SEC first sector DIR
+.RootDirFirstSector_H:	WORD	#0000		; MSD_CAT_SEC first sector DIR
+.DirSizeInSectors:	BYTE	#00		; DIR_SEC_SIZE
+.FirstDataSector_L:	WORD	#0000		; MSD_DAT_SEC low
+.FirstDataSector_H:	WORD	#0000		; MSD_DAT_SEC high
+.BytesPerCluster:	WORD	#0000		; CLUSTER_LEN
+.END_CHAIN_CLUSTER_L:	WORD	#FFFF
+.END_CHAIN_CLUSTER_H:	WORD	#0FFF
+.MaxClusterLow:		WORD	#0000		; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
+.MaxClusterHigh:	WORD	#0000		; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
+.BytesPerSector:	WORD	#0000
+.SectorsPerCluster:	BYTE	#00
+.FSINFO_Sector:		WORD	#01
+.BPB_SERIAL_NUMBER:	DWORD	#00000000
+.BPB_LABEL:		BLOCK	11,' '		; 11 ¤«ï FAT, 31 ¤«ï CDFS
+.UPD_FSINFO:		BYTE	0
+.FREE_CLUSTERS_COUNT_L:	WORD	#FFFF
+.FREE_CLUSTERS_COUNT_H:	WORD	#FFFF
+;.FilesPerSector:	BYTE	#00		; ç¨á«® ä ©«®¢ëå § ¯¨á¥© ¢ ᥪâ®à¥
+;.ClustersPerBank:	BYTE	#00		; A - Clusters per bank (16k) (ç¨á«® ª« áâ¥à®¢ ­  ¡«®ª Ž‡“)
+;.READ_PG:		BYTE	#00		;!TODO ­¥ ¨á¯®«ì§ãîâáï ­¥ª®â®àë¥ §­ ç¥­¨ï, ­® § ¤ã¬ª  ­¥¯«®å ï)))
+;.S_X_H:		DWORD	#0000		; ª®«¨ç¥á⢮ ᥪâ®à®¢ ­  樫¨­¤à¥
+
+
 FatBuffer			EQU	VALUE
 .CacheBlock			EQU	FatBuffer+0 ; FatCache
 .FAT1_SEC_L			EQU	FatBuffer+2 ; FAT_FRM	MSD_FAT_SEC first sector FAT
@@ -1412,7 +1787,13 @@ FatBuffer			EQU	VALUE
 .FirstDataSector_L		EQU	FatBuffer+9 ; DAT_FRM	MSD_DAT_SEC
 .FAT_TYPE			EQU	FatBuffer+11; FAT_TYP	; !FIXIT TYPE FAT (#32 - 12bit, #36 - 16bit)
 .BytesPerCluster		EQU	FatBuffer+12; CLU_LEN	
+.FAT1_SEC_H			EQU	FatBuffer+14 ;
+.SectorsPerFAT_L		EQU	FatBuffer+16
+.SectorsPerFAT_H		EQU	FatBuffer+18
+.FAT2_SEC_L			EQU	FatBuffer+20
+.FAT2_SEC_H			EQU	FatBuffer+22
 ;.END_CHAIN_CLUSTER_L		EQU	FatBuffer+14; ENDCLUS	
+*/
 
 
 ; FatCache		EQU	VALUE+0	   ; .CacheBlock
@@ -1427,20 +1808,19 @@ FatBuffer			EQU	VALUE
 
 
 
-HANDBUF		EQU	VALUE+16
+HANDBUF			EQU	VALUE + _sysFatBuffer
-FCLUSTER32	EQU	HANDBUF + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_H
+FCLUSTER_H		EQU	HANDBUF + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_H
 ; FTIME			EQU	HANDBUF + FAT_DIRECTORY_RECORD.TIME
 ; FDATE			EQU	HANDBUF + FAT_DIRECTORY_RECORD.DATE
-FCLUSTR		EQU	HANDBUF + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_L
+FCLUSTR_L		EQU	HANDBUF + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_L
 FSIZE0			EQU	HANDBUF + FAT_DIRECTORY_RECORD.F_SIZE
 FSIZE1			EQU	HANDBUF + FAT_DIRECTORY_RECORD.F_SIZE + 2
-
+PARTITION_START_H	EQU	FSIZE1+2
-DISKH		EQU	VALUE+48
+PARTITION_START_L	EQU	PARTITION_START_H+2
-DISKL		EQU	VALUE+50
+READMEM			EQU	PARTITION_START_L+2
-READMEM		EQU	VALUE+52
+BIG_CORE		EQU	READMEM+2
+BANKDOS			EQU	BIG_CORE+1
 ;SHEL_FM		EQU	VALUE+54
-BIG_CORE	EQU	VALUE+54
-BANKDOS		EQU	VALUE+55
 ;	EQU	VALUE+56
 
 ;-----------------
@@ -1454,6 +1834,11 @@ BANKDOS		EQU	VALUE+55
 
 ;STACK	EQU	(($/256)+2)*256
 
+	DISPLAY	"BOOT_BUFFER	",/H,BOOT_BUFFER
+	DISPLAY	"DIR_BUFFER	",/H,DIR_BUFFER
+	DISPLAY	"FatBuffer	",/H,FatBuffer
+
         ENT
+	ENDMODULE
  OUTEND
 ;[]-----------------------------------------------------------[]

BOOT/boot.asm

@@ -18,12 +18,52 @@
 ; ¤¨áª¥â  ¤«ï ᮧ¤ ­¨ï ¨§ ­¥¥ § £à㧮筮©.
 ;
 ;
+ STRUCT	_sysFatBuffer
+.DRIVE:			BYTE	#FF
+.FAT_TYPE:		BYTE	#00		; TYPE FAT (12 - 12bit, 16 - 16bit, 32 - 32bit)	; fat32
+.CacheBlock:		WORD	#0000
+.CacheUpdated:		BYTE	#00
+;.SectorsPerBank:	BYTE	#00
+.RootDirStartCluster_L:	WORD	#0000
+.RootDirStartCluster_H:	WORD	#0000		; fat32
+.FAT1_SEC_L:		WORD	#0000		; MSD_FAT_SEC first sector FAT (FAT_FRM)
+.FAT1_SEC_H:		WORD	#0000		; fat32
+.FAT2_SEC_L:		WORD	#0000
+.FAT2_SEC_H:		WORD	#0000		; fat32
+.Number_Of_FATs		BYTE	#02
+.SectorsPerFAT_L	WORD	#0000
+.SectorsPerFAT_H	BYTE	#00
+.RootDirFirstSector_L:	WORD	#0000		; MSD_CAT_SEC first sector DIR
+.RootDirFirstSector_H:	WORD	#0000		; MSD_CAT_SEC first sector DIR
+.DirSizeInSectors:	BYTE	#00		; DIR_SEC_SIZE
+.FirstDataSector_L:	WORD	#0000		; MSD_DAT_SEC low
+.FirstDataSector_H:	WORD	#0000		; MSD_DAT_SEC high
+.BytesPerCluster:	WORD	#0000		; CLUSTER_LEN
+.END_CHAIN_CLUSTER_L:	WORD	#FFFF
+.END_CHAIN_CLUSTER_H:	WORD	#0FFF
+.MaxClusterLow:		WORD	#0000		; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
+.MaxClusterHigh:	WORD	#0000		; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
+.BytesPerSector:	WORD	#0000
+.SectorsPerCluster:	BYTE	#00
+.FSINFO_Sector:		WORD	#01
+.BPB_SERIAL_NUMBER:	DWORD	#00000000
+.BPB_LABEL:		BLOCK	11,' '		; 11 ¤«ï FAT, 31 ¤«ï CDFS
+;.UPD_FSINFO:		BYTE	0
+;.FREE_CLUSTERS_COUNT_L:	WORD	#FFFF
+;.FREE_CLUSTERS_COUNT_H:	WORD	#FFFF
+;.FilesPerSector:	BYTE	#00		; ç¨á«® ä ©«®¢ëå § ¯¨á¥© ¢ ᥪâ®à¥
+;.ClustersPerBank:	BYTE	#00		; A - Clusters per bank (16k) (ç¨á«® ª« áâ¥à®¢ ­  ¡«®ª Ž‡“)
+;.READ_PG:		BYTE	#00		;!TODO ­¥ ¨á¯®«ì§ãîâáï ­¥ª®â®àë¥ §­ ç¥­¨ï, ­® § ¤ã¬ª  ­¥¯«®å ï)))
+;.S_X_H:		DWORD	#0000		; ª®«¨ç¥á⢮ ᥪâ®à®¢ ­  樫¨­¤à¥
+ ENDS
+
         include         'shared_includes/constants/sp2000.inc'
         include         'shared_includes/constants/bios_equ.inc'
         include         'shared_includes/constants/dss_equ.inc'
         include         'shared_includes/macroses/accelerator.z80'
         include         'shared_includes/macroses/macros.z80'
         include         'shared_includes/structures/FileSystem.inc' 
+        ;include         'DSS/structures.inc' 
         include         '../DSS/defines.inc' 
 
         DEFINE  EXEinfoMACRO		0
@@ -42,9 +82,10 @@
 
 
 ; ¢¥àá¨ï ¯à®£à ¬¬ë
-major_version	equ	1			; áâ. ­®¬¥à ¢¥àᨨ
+major_version		equ	2			; áâ. ­®¬¥à ¢¥àᨨ
-minor_version	equ	5			; ¬«. ­®¬¥à
+minor_version		equ	0			; ¬«. ­®¬¥à
 ;;
+SECTORS_OF_LOADER	EQU	4
 
 org_addr		EQU #8000 + CLP_Buffer
 code_addr		EQU BEGIN
@@ -108,40 +149,40 @@ version_ok:	xor	a			;
 		ld	hl,root_path		; "X:\" ª®à¥­ì ¤¨áª 
 		add	a,'A'
 		ld	(hl),a
-		ld	c,1Dh			; ᬥ­  ª â «®£ 
+		ld	c,Dss.ChDir		; ᬥ­  ª â «®£ 
 		RST	ToDSS
 		;--------------------------------------------
 		; —⥭¨¥ ä ©«  system.exe
 		;--------------------------------------------
 		ld	hl,name2		; ¨¬ï ä ©« 
 		call	read_file		; ¢áï à ¡®â  ¯® § £à㧪¥ ä ©«  ¢ áâà ­¨æë
-		jr	nc,read_file1_ok
+		;jr	nc,read_file1_ok
 		; ®á¢®¡. ¡«®ª ¯ ¬ïâ¨
-read_file_err:	ld	a,(id_blck)		; ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
+;read_file_err:	ld	a,(FILE1_PARAMS.id_blck) ; ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
-		ld	c,3Eh
+; 		ld	c,Dss.FreeMem
-		RST	ToDSS
+; 		RST	ToDSS
-		ld	a,-1			; ª®¤ ®è¨¡ª¨
+		;ld	a,DSS_Error.sys.DISK_FULL ; ª®¤ ®è¨¡ª¨
-		jp	exit
+		jp	c,exit
-
 		; á®åà. à ¡. ï祩ª¨ ä ©«  system.exe
-read_file1_ok:	ld	hl,file_handle		; ®âªã¤ 
+read_file1_ok:	ld	hl,FILE1_PARAMS		; ®âªã¤ 
-		ld	de,hFile1		; ªã¤ 
+		ld	de,FILE2_PARAMS		; ªã¤ 
-		ld	bc,6
+		ld	bc,FILE2_PARAMS.dataSize
 		ldir
 		;--------------------------------------------
 		; —⥭¨¥ ä ©«  system.dos
 		;--------------------------------------------
 		ld	hl,name1		; ¨¬ï ä ©« 
 		call	read_file		; ¢áï à ¡®â  ¯® § £à㧪¥ ä ©«  ¢ áâà ­¨æë
-		jr	nc,read_file2_ok
+		;jr	c,read_file_err
+		;ld	a,DSS_Error.sys.DISK_FULL; ª®¤ ®è¨¡ª¨
+		jp	c,exit
+		;jr	nc,read_file2_ok
 		; ®á¢®¡. ¡«®ª ¯ ¬ï⨠system.exe
-file_err1:	ld	a,(id_mem)		; ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
+; file_err1:	ld	a,(FILE2_PARAMS.id_blck); ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
-		ld	c,3Eh
+; 		ld	c,Dss.FreeMem
-		RST	ToDSS
+; 		RST	ToDSS
-		jr	read_file_err		; ®á¢®¡. ¡«®ª ¯ ¬ï⨠system.dos
+		;jr	read_file_err		; ®á¢®¡. ¡«®ª ¯ ¬ï⨠system.dos
-
+confirm_flag+1:	ld	a,0
-read_file2_ok:
-confirm_flag+*:	ld	a,0
 		or	a
 		jr	z,no_confirm
 		ld	a,(boot_disk)		; á¨áâ. ¤¨áª
@@ -153,7 +194,7 @@ confirm_flag+*:	ld	a,0
 		ld	(messages.lett2),a
 		ld	a,5			; ¨­¤¥ªá áâப¨ "Insert destination disk..."
 		call	print_string
-		ld	bc,3035h		; ¦¤¥¬ ­ ¦ â¨ï ª« ¢¨è¨
+		ld	bc,Dss.K_CLEAR + Dss.WaitKey*256; ¦¤¥¬ ­ ¦ â¨ï ª« ¢¨è¨
 		RST	ToDSS
 no_confirm:	ld	a,2			; ¨­¤¥ªá áâப¨ "Installing boot loader..."
 		call	print_string
@@ -162,7 +203,7 @@ no_confirm:	ld	a,2			;
 		ld	hl,root_path		; "X:\"  áâப  ¯ãâ¨
 		add	a,'A'
 		ld	(hl),a
-		ld	c,1Dh			; ᬥ­  ⥪. ª â «®£ 
+		ld	c,Dss.ChDir		; ᬥ­  ⥪. ª â «®£ 
 		RST	ToDSS
 		;--------------------------------------------
 		; ‡ ¯¨á âì boot-§ £àã§ç¨ª
@@ -174,29 +215,29 @@ no_confirm:	ld	a,2			;
 		; ‡ ¯¨áì ä ©«  system.dos
 		ld	hl,name1		; ¨¬ï ä ©« 
 		call	write_file
-		jr	nc,ok_write1
+		jr	c,write_error
-		jr	file_err1
-		;
 ok_write1:	; ®á¢®¡®¤¨âì ¯ ¬ïâì
-		ld	a,(id_blck)		; ¡«®ª system.dos
+		; ld	a,(FILE1_PARAMS.id_blck)		; ¡«®ª system.dos
-		ld	c,3Eh
+		; ld	c,Dss.FreeMem
-		RST	ToDSS
+		; RST	ToDSS
 		;
 		; § £à. à ¡. ï祩ª¨
-		ld	hl,hFile1		; ®âªã¤ 
+		ld	hl,FILE2_PARAMS		; ®âªã¤ 
-		ld	de,file_handle		; ªã¤ 
+		ld	de,FILE1_PARAMS		; ªã¤ 
-		ld	bc,6
+		ld	bc,FILE1_PARAMS.dataSize
 		ldir
 		; ‡ ¯¨áì ä ©«  system.exe
 		ld	hl,name2		; ¨¬ï ä ©« 
 		call	write_file
 		; ®á¢®¡®¤¨âì ¯ ¬ïâì
-		push	af
+		; push	af
-		ld	a,(id_blck)		; ¡«®ª system.exe
+		; ld	a,(FILE1_PARAMS.id_blck)		; ¡«®ª system.exe
-		ld	c,3Eh
+		; ld	c,Dss.FreeMem
-		RST	ToDSS
+		; RST	ToDSS
-		pop	af
+		; pop	af
-		jr	c,exit			; ®è¨¡ª 
+		;
+		jr	c,write_error
+		;jr	c,exit			; ®è¨¡ª 
 		;
 		ld	a,(disk)		; § ¤ ­­ë© ­®¬¥à ¤¨áª 
 		add	a,'A'
@@ -209,25 +250,24 @@ ok_write1:	;
 		; § ¯à®á¨âì á¨á⥬­ë© ¤¨áª
 		ld	a,(boot_disk)		; á¨áâ. ¤¨áª
 		cp	2
-		jr	nc,exit-1		; ­¥ ¤¨áª®¢®¤ë
+		jr	nc,.not_fdd		; ­¥ ¤¨áª®¢®¤ë
 		add	a,'A'
 		ld	(messages.lett3),a
 		ld	a,6			; ¨­¤¥ªá áâப¨ "Insert system disk..."
 		call	print_string
-		ld	bc,3035h		; ¦¤¥¬ ­ ¦ â¨ï ª« ¢¨è¨
+		ld	bc,Dss.K_CLEAR + Dss.WaitKey*256; ¦¤¥¬ ­ ¦ â¨ï ª« ¢¨è¨
 		RST	ToDSS
-		xor	a			; ª®¤ "Ok"
+.not_fdd:	xor	a			; ª®¤ "Ok"
 exit:		push	af
 		call	restore_path		; ¢®ááâ. ⥪. ¤¨áª ¨ ¯ãâì
 port:		ld	a,-1			; á®åà. ¯®àâ
 		out	(SLOT3),a
 		pop	af
-		ld	c,41h			; ¢ë室 ¢ „Ž‘
+		ld	c,Dss.Exit		; ¢ë室 ¢ „Ž‘
 		ld	b,a
 		RST	ToDSS
 		jr	$
-
+		;
-
 help:		ld	a,8			; ¨­¤¥ªá áâப¨ "Invalid drive specification"
 		call	print_string
 		ld	a,4			; ¨­¤¥ªá áâப¨ åí«¯ 
@@ -255,8 +295,8 @@ name2:		db	"SYSTEM.EXE",0
 ;-------------------------------------------------
 write_boot_loader:
 		ld	a,(disk)		; § ¤ ­­ë© ­®¬¥à ¤¨áª 
-		ld	c,1			; open device
+		ld	c,Dss.DRV.Open		; open device
-		rst	18h
+		rst	ToDSS.DRV
 		ret	c
 		ld	hl,close_device		; â®çª  ¢ë室 
 		push	hl
@@ -264,10 +304,10 @@ write_boot_loader:
 		ld	hl,0			; áâ. à §àï¤ «®£. ᥪâ®à 
 		ld	ix,0			; ¬«. à §àï¤
 		ld	de,buffer		; ªã¤ 
-		ld	bc,0105h		; ¯à®ç¨â âì 1 ᥪâ®à (boot)
+		ld	bc,1*256 + Dss.DRV.Read	; ¯à®ç¨â âì 1 ᥪâ®à (boot)
-		rst	18h
+		rst	ToDSS.DRV
 		ret	c			; ®è¨¡ª  ç⥭¨ï
-		ld	a,(buffer+21)		; ¡ ©â ä®à¬ â 
+		ld	a,(buffer + _sBOOT_SECTOR_PARAMS.DRIVE_TYPE)
 		cp	#F0			; 1.44Mb
 		ret	c			; ­¥§­ ª®¬ë© ä®à¬ â
 		jr	z,write_to_floppy
@@ -285,8 +325,8 @@ write_boot_loader:
 ; § ªàëâì ¤¥¢ ©á
 close_device:	push	af			; á®åà. ä« £
 		ld	a,(disk)		; § ¤ ­­ë© ­®¬¥à ¤¨áª 
-		ld	c,2			; close device
+		ld	c,Dss.DRV.Close		; close device
-		rst	18h
+		rst	ToDSS.DRV
 		pop	af
 		ret
 
@@ -298,38 +338,45 @@ close_device:	push	af			;
 ; ¢ë室: CF - ¯à¨ ®è¨¡ª¥ § ¯¨á¨
 ;-------------------------------------------------
 write_to_floppy:
-		ld	a,(buffer+16)		; ç¨á«® ª®¯¨© FAT-®¢
+		ld	a,(buffer + BOOT_SECTOR.Number_of_FATs)		; ç¨á«® ª®¯¨© FAT-®¢
 		or	a
 		scf
 		ret	z						; ®è¨¡ª 
 		dec	a						; --ç¨á«® ª®¯¨©
 		jr	z,overwrite_floppy				; § £àã§ç¨ª 㦥 § ¯¨á ­, ¯¥à¥§ ¯¨á âì ¥£®
 		; ­ áâநâì ï祩ª¨ boot-ᥪâ®à 
-		ld	(buffer+16),a		; ç¨á«® ª®¯¨© FAT-®¢
+		ld	(buffer + BOOT_SECTOR.Number_of_FATs),a		; ç¨á«® ª®¯¨© FAT-®¢
-		ld	hl,(buffer+14)		; § à¥§¥à¢. ᥪâ®à®¢
+		ld	hl,(buffer + BOOT_SECTOR.RESERVED_SECTORS)	; § à¥§¥à¢. ᥪâ®à®¢
-		ld	bc,(buffer+22)		; ᥪâ®à®¢ ­  FAT
+		ld	bc,(buffer + BOOT_SECTOR.SectorsPerFAT16)	; ᥪâ®à®¢ ­  FAT
-		ld	a,b
+		; ld	a,b
-		or	c
+		; or	c
-		scf
+		; scf
-		ret	z			; 0 ᥪâ®à®¢ ­  FAT
+		; ret	z						; 0 ᥪâ®à®¢ ­  FAT
+		; ;
 		add	hl,bc
-		ld	(buffer+14),hl		; § à¥§¥à¢. ᥪâ®à®¢
+		ld	(buffer + BOOT_SECTOR.RESERVED_SECTORS),hl	; § à¥§¥à¢. ᥪâ®à®¢
+		ex	hl,de
+		ld	hl,SECTORS_OF_LOADER-1
+		and	a
+		sbc	hl,de
+		ccf
+		ret	c	
 overwrite_floppy:
 		; § ¯¨á âì boot-ᥪâ®à ­ § ¤
 		ld	a,(disk)					; § ¤ ­­ë© ­®¬¥à ¤¨áª 
 		ld	hl,0						; áâ. à §àï¤ «®£. ᥪâ®à 
 		ld	ix,0						; ¬«. à §àï¤
 		ld	de,buffer					; ®âªã¤ 
-		ld	bc,0106h		; § ¯¨á âì 1 ᥪâ®à
+		ld	bc,1*256 + Dss.DRV.Write			; § ¯¨á âì 1 ᥪâ®à
-		rst	18h
+		rst	ToDSS.DRV
 		ret	c						; ®è¨¡ª  § ¯¨á¨
 		; § ¯¨á âì § £àã§ç¨ª
 		ld	a,(disk)					; § ¤ ­­ë© ­®¬¥à ¤¨áª 
 		ld	hl,0						; áâ. à §àï¤ «®£. ᥪâ®à 
 		ld	ix,1						; ¬«. à §àï¤
 		ld	de,code_loader					; ®âªã¤  (ª®¤ § £àã§ç¨ª )
-		ld	bc,0306h		; § ¯¨á âì 3 ᥪâ®à  (à §¬¥à § £à.)
+		ld	bc,SECTORS_OF_LOADER*256 + Dss.DRV.Write	; § ¯¨á âì 3 ᥪâ®à  (à §¬¥à § £à.)
-		rst	18h
+		rst	ToDSS.DRV
 		ret
 
 
@@ -342,8 +389,8 @@ overwrite_floppy:
 write_to_ram_disk:
 write_to_:	ld	a,(disk)		       			; ­®¬¥à § ¤ ­­®£® ¤¨áª 
 		ld	de,#55AA
-		ld	bc,0 * 256 + 8
+		ld	bc,Dss.DRV.GenIOCTL.GetParams
-		rst	#18
+		rst	ToDSS.DRV
 		ex	af,af'
 		;[ ] 17.12.2023 § £à㧪  á  ªâ¨¢­®£® à §¤¥« ,   ­¥ á ¯¥à¢®£®
 		 ld	b,a
@@ -362,7 +409,7 @@ write_to_:	ld	a,(disk)		        ;
 		 RST	ToBIOS
 		 POP	BC
 		 LD	HL,(buffer + _sBOOT_SECTOR_PARAMS.RESERVED_SECTORS)
-		 LD	DE,04	;!HARDCODE ¬¨­¨¬ «ì­®¥ à ááâ®ï­¨¥ ­  ¤à ©¢¥ ®â ­ã«¥¢®£® ᥪâ®à  ¤® ä â  (¤«¨­  § £àã§ç¨ª  + 1)
+		 LD	DE,SECTORS_OF_LOADER + 1 ; ¬¨­¨¬ «ì­®¥ à ááâ®ï­¨¥ ­  ¤à ©¢¥ ®â ­ã«¥¢®£® ᥪâ®à  ¤® ä â  (¤«¨­  § £àã§ç¨ª  + 1)
 		 AND	A
 		 SBC	HL,DE
 		 RET	C
@@ -373,7 +420,7 @@ write_to_:	ld	a,(disk)		        ;
 		ld	hl,0			        		; áâ. à §àï¤ «®£. ᥪâ®à 
 		ld	ix,1			        		; ¬«. à §àï¤
 		ld	de,code_loader		        		; ®âªã¤  (ª®¤ § £àã§ç¨ª )
-		ld	bc,3*256 + BIOS.DRV_WRITE       ; § ¯¨á âì 3 ᥪâ®à  (à §¬¥à § £à.)
+		ld	bc,SECTORS_OF_LOADER*256 + BIOS.DRV_WRITE       ; § ¯¨á âì 3 ᥪâ®à  (à §¬¥à § £à.)
 		rst	ToBIOS
 		;[ ] 17.12.2023 § £à㧪  á  ªâ¨¢­®£® à §¤¥« ,   ­¥ á ¯¥à¢®£®
 		 pop	bc
@@ -396,7 +443,7 @@ write_to_hard_disk:
 		 LD	BC,1*256 + BIOS.DRV_READ
 		 RST	ToBIOS
 		 ; check signature
-		 LD	HL,(buffer+510)	;!HARDCODE Signature word
+		 LD	HL,(buffer + _sBOOT_SECTOR.MBR_SIGNATURE)
 		 LD	DE,#AA55
 		 AND	A
 		 SBC	HL,DE
@@ -406,9 +453,9 @@ write_to_hard_disk:
 		 PUSH	BC
 		 ; set active in buffer
 		 INC	C
-		 LD	HL,buffer + #01BE + #30	;!HARDCODE MBR: Offset of last record of partition table in the MBR
+		 LD	HL,buffer + _sBOOT_SECTOR.PARTITION_TABLE.Record_4
-		 LD	DE,#10		; à §¬¥à ®¤­®© § ¯¨á¨ MBR
+		 LD	DE,_sMBR_PARTITION_RECORD			; à §¬¥à ®¤­®© § ¯¨á¨ MBR
-		 LD	B,4		;!HARDCODE MBR: Number of entries in the partition table
+		 LD	B,_sMBR_PARTITION_TABLE / _sMBR_PARTITION_RECORD; MBR: Number of entries in the partition table
 .loop:		 XOR	A
 		 LD	(HL),A
 		;
@@ -434,6 +481,10 @@ write_to_hard_disk:
 		 JR	Z,.next
 		 CP	PartitionSysTypes.FAT16_LBA
 		 JR	Z,.next
+		 CP	PartitionSysTypes.FAT32
+		 JR	Z,.next
+		 CP	PartitionSysTypes.FAT32_LBA
+		 JR	Z,.next
 		 ; NOT SUPPORTED FS
 		 POP	BC
 		 SCF
@@ -448,8 +499,9 @@ write_to_hard_disk:
 		 ld	hl,0			        ; áâ. à §àï¤ «®£. ᥪâ®à 
 		 ld	ix,0			        ; ¬«. à §àï¤
 		 ld	de,buffer		        ; ®âªã¤  (ª®¤ § £àã§ç¨ª )
-		 ld	bc,1*256 + BIOS.DRV_WRITE       ; § ¯¨á âì 3 ᥪâ®à  (à §¬¥à § £à.)
+		 ld	bc,1*256 + BIOS.DRV_WRITE       ; § ¯¨á âì 1 ᥪâ®à
-		 JP	ToBIOS
+		 RST	ToBIOS
+		 RET
 		;
 ;-------------------------------------------------
 ; ‚뤥«¨âì § ¤ ­­ë© ¤¨áª ¨§ ª®¬-áâப¨
@@ -461,7 +513,7 @@ write_to_hard_disk:
 get_drive_letter:
 		inc	hl			; ¡ãä¥à áâப¨
 		ld	de,buffer		; ¡ãä¥à ¤«ï ¢ë¤¥«. ¯ à ¬¥âà 
-		ld	c,43h			; ¢ë¤¥«¨âì ¯ à ¬¥âà ª®¬. áâப¨
+		ld	c,Dss.GSwitch		; ¢ë¤¥«¨âì ¯ à ¬¥âà ª®¬. áâப¨
 		RST	ToDSS
 		ld	de,buffer
 		ld	a,(de)
@@ -480,7 +532,7 @@ get_drive_letter:
 		jr	c,get_drive_err
 		cp	'z'+1
 		jr	nc,get_drive_err
-		res	5,a
+		and	%1101'1111
 		sub	'A'
 		or	a
 		ret
@@ -495,11 +547,11 @@ get_drive_err:	scf				;
 ;----------------------------------------------------
 ; á®åà. ⥪. á¨á⥬­ë© ¤¨áª ¨ ¯ãâì
 ;----------------------------------------------------
-save_path:	ld	c,2			; 㧭 âì ¤¨áª
+save_path:	ld	c,Dss.CurDisk		; 㧭 âì ¤¨áª
 		RST	ToDSS
 		ld	(sys_disk),a
 		ld	hl,sys_path
-		ld	c,1Eh			; 㧭 âì ¯ãâì
+		ld	c,Dss.CurDir		; 㧭 âì ¯ãâì
 		RST	ToDSS
 		ret
 
@@ -508,38 +560,40 @@ save_path:	ld	c,2			; 㧭
 ; ¢®ááâ. ⥪. á¨á⥬­ë© ¤¨áª ¨ ¯ãâì
 ;----------------------------------------------------
 restore_path:	ld	a,(sys_disk)
-		ld	c,1			; ᬥ­  ¤¨áª 
+		ld	c,Dss.ChDisk		; ᬥ­  ¤¨áª 
 		RST	ToDSS
 		ld	hl,sys_path
-		ld	c,1Dh			; ᬥ­  ¯ãâ¨
+		ld	c,Dss.ChDir		; ᬥ­  ¯ãâ¨
 		RST	ToDSS
 		ret
+;
 
-
+;
-
-
-
 disk:		db	0			; ­®¬¥à § ¤ ­­®£® ¤¨áª 
 boot_disk:	db	0			; ­®¬¥à boot-¤¨áª  á¨á⥬ë
 
-
-
 ; à ¡. ï祩ª¨ ⥪. ä ©« 
 ;
 ;  ç⥭¨¥: system.exe, ¤ «¥¥ system.dos
 ;  § ¯¨áì: system.dos, ¤ «¥¥ system.exe
-file_handle:	db	-1			; ¤¥áªà¨¯â®à ä ©« 
+FILE1_PARAMS:
-id_blck:	db	-1			; ¨¤¥­â¨ä. ¢ë¤¥«. ¡«®ª  ¯ ¬ïâ¨
+.handle:	db	-1			; ¤¥áªà¨¯â®à ä ©« 
+.id_blck:	db	-1			; ¨¤¥­â¨ä. ¢ë¤¥«. ¡«®ª  ¯ ¬ïâ¨
 		;
-lsize:		dw	0			; ¬«.à §àï¤ à §¬¥à  ä ©« 
+.sizeLow:	dw	0			; ¬«.à §àï¤ à §¬¥à  ä ©« 
-hsize:		dw	0			; áâ.à §àï¤
+.sizeHigh:	dw	0			; áâ.à §àï¤
+.dataSize	EQU	$-FILE1_PARAMS
 
 ; á®åà. ¤ ­­ë¥ system.exe
-hFile1:		db	-1			; ¤¥áªà. ä ©« 
+FILE2_PARAMS:
-id_mem:		db	-1			; ¨¤¥­â¨ä. ¡«®ª 
+.handle:	db	-1			; ¤¥áªà¨¯â®à ä ©« 
+.id_blck:	db	-1			; ¨¤¥­â¨ä. ¢ë¤¥«. ¡«®ª  ¯ ¬ïâ¨
 		;
-		dw	0			; ¬«.à §àï¤
+.sizeLow:	dw	0			; ¬«.à §àï¤ à §¬¥à  ä ©« 
-		dw	0			; áâ.à §àï¤
+.sizeHigh:	dw	0			; áâ.à §àï¤
+.dataSize	EQU	$-FILE2_PARAMS
+
+	ASSERT FILE1_PARAMS.dataSize = FILE2_PARAMS.dataSize, "Erorr! FILE1_PARAMS != FILE2_PARAMS"
 ;
 ;
 ;
@@ -550,8 +604,8 @@ messages:	db	0
 		db	"\r\nBoot and System files Installer v"			;0
 		db	major_version + '0','.'
 		db	(minor_version / 10) + '0',(minor_version % 10) + '0','.'    
-		db	"\r\n\nCopyright (c) 2006-2022 Vasil Ivanov."
+		db	"\r\n\nCopyright (c) 2006 Vasil Ivanov."
-		db	"\r\n\nCopyright (c) 2023 Sprinter Team."                
+		db	"\r\n\nCopyright (c) 2023-2024 Sprinter Team."                
 		db	"\r\n\n",0
 		;
 		db	"System successfully installed on disk "		;1
@@ -586,7 +640,7 @@ messages:	db	0
 ; ‚뢥á⨠áâப㠯® ¨­¤¥ªáã
 ; ¢å®¤: a=¨­¤¥ªá áâப¨
 print_string:	call	get_string		; ¯®¨áª áâப¨ ¯® ¥¥ ¨­¤¥ªáã ¢ 'a'
-		ld	c,5Ch			; ¢ë¢®¤ áâப¨
+		ld	c,Dss.PChars		; ¢ë¢®¤ áâப¨
 		RST	ToDSS
 		ret
 
@@ -616,33 +670,43 @@ get_loop:	ex	af,af'
 ; ¢å®¤: hl=¨¬ï ä ©« 
 ; ¢ë室: CF-¯à¨ ®è¨¡ª¥
 ;====================================================
-read_file:	ld	a,1			; ­  ç⥭¨¥
+read_file:	ld	a,Dss.Open.R		; ­  ç⥭¨¥
-		ld	c,11h			; ®âªàëâì ä ©«
+		ld	c,Dss.Open		; ®âªàëâì ä ©«
 		RST	ToDSS
-		jr	nc,ok			; ¡¥§ ®è¨¡®ª
+		jr	nc,.ok			; ¡¥§ ®è¨¡®ª
+		;
+		push	af
 		ld	a,9			; ¨­¤¥ªá "Can't open file"
 		call	print_string
-		scf
+		pop	af
-		ret
-ok:		ld	(file_handle),a		; ¤¥áªà. ä ©« 
-		ld	hl,0
-		ld	ix,0
-		ld	bc,0215h		; 㪠§ â¥«ì ­  ª®­¥æ ä ©« 
-		RST	ToDSS
-		ld	(hsize),hl		; áâ.à §àï¤ à §¬¥à  ä ©« 
-		ld	(lsize),ix		; ¬«.à §àï¤
-		call	get_memory		; à áç. ¨ ¢ë¤¥«. áâà ­¨æë ¯®¤ ä ©«
-		jr	c,not_enough		; ­¥ 墠⠥⠯ ¬ïâ¨
-		call	file_to_bank		; § £à. ä ©« ¢ áâà ­¨æë
-close_file:	ld	a,(file_handle)		; ¤¥áªà. ä ©« 
-		ld	c,12h			; § ªàëâì ä ©«
-		RST	ToDSS
 		ret
 		;
-not_enough:	call	close_file
+.ok:		ld	(FILE1_PARAMS.handle),a	; ¤¥áªà. ä ©« 
+		ld	hl,0
+		ld	ix,0
+		ld	bc,Dss.Move_FP.FrEnd	; 㪠§ â¥«ì ­  ª®­¥æ ä ©« 
+		RST	ToDSS
+		ld	(FILE1_PARAMS.sizeHigh),hl	; áâ.à §àï¤ à §¬¥à  ä ©« 
+		ld	(FILE1_PARAMS.sizeLow),ix	; ¬«.à §àï¤
+		call	get_memory		; à áç. ¨ ¢ë¤¥«. áâà ­¨æë ¯®¤ ä ©«
+		jr	c,.not_enough		; ­¥ 墠⠥⠯ ¬ïâ¨
+		call	file_to_bank		; § £à. ä ©« ¢ áâà ­¨æë
+.close_file:	push	af
+		ld	a,(FILE1_PARAMS.handle)	; ¤¥áªà. ä ©« 
+		ld	c,Dss.Close		; § ªàëâì ä ©«
+		RST	ToDSS
+		pop	af
+		ret
+		;
+.not_enough:	push	af
+		call	.close_file
 		ld	a,10			; ¨­¤¥ªá "Can't allocate memory"
 		call	print_string
+		pop	af
+		or	a
 		scf
+		ret	nz
+		ld	a,DSS_Error.sys.NOT_ENOUGH_MEMORY
 		ret
 
 
@@ -652,9 +716,9 @@ not_enough:	call	close_file
 ; ç¨á«® áâà ­¨æ ¨ ¢ë¤¥«¨âì ¨å.
 ; ‚ë室: CF - ¯à¨ ­¥å¢ âª¥ ¯ ¬ïâ¨
 ;----------------------------------------------------
-get_memory:	ld	hl,(hsize)		; áâ.à §àï¤ à §¬¥à  ä ©« 
+get_memory:	ld	hl,(FILE1_PARAMS.sizeHigh)	; áâ.à §àï¤ à §¬¥à  ä ©« 
-		ld	bc,(lsize)		; ¬«.à §àï¤
+		ld	bc,(FILE1_PARAMS.sizeLow)	; ¬«.à §àï¤
-		ld	de,4000h		; ¤¥«¨â¥«ì (à §¬¥à áâà ­¨æë)
+		ld	de,#4000			; ¤¥«¨â¥«ì (à §¬¥à áâà ­¨æë)
 		xor	a
 		scf
 malloc1:	rr	d
@@ -669,7 +733,7 @@ malloc1:	rr	d
 		jr	malloc1
 		;
 malloc2:	or	a
-		jr	z,$+3
+		jr	z,$+3			;!FIXIT $
 		inc	bc
 		xor	a
 		cp	b
@@ -677,9 +741,9 @@ malloc2:	or	a
 		ret	nz
 		; ¢ë¤¥«¨âì ¡«®ª ¯ ¬ïâ¨
 		ld	b,c			; b=ç¨á«® áâà ­¨æ
-		ld	c,3Dh
+		ld	c,Dss.GetMem
 		RST	ToDSS
-		ld	(id_blck),a		; ¨¤¥­â¨ä. ¡«®ª 
+		ld	(FILE1_PARAMS.id_blck),a		; ¨¤¥­â¨ä. ¡«®ª 
 		ret
 
 
@@ -688,39 +752,38 @@ malloc2:	or	a
 ;----------------------------------------------------
 file_to_bank:	ld	hl,0
 		ld	ix,0
-		ld	a,(file_handle)		; ¤¥áªà. ä ©« 
+		ld	a,(FILE1_PARAMS.handle)	; ¤¥áªà. ä ©« 
-		ld	bc,0015h		; 㪠§ â¥«ì ­  ­ ç «® ä ©« 
+		ld	bc,Dss.Move_FP.FrStart	; 㪠§ â¥«ì ­  ­ ç «® ä ©« 
 		RST	ToDSS
-		ld	a,(id_blck)		; ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
+		ld	a,(FILE1_PARAMS.id_blck)	; ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
-		ld	b,0			; «®£. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
+		;ld	b,0			; «®£. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
-		ld	c,0C4h			; ¯®«ãç¨âì 䨧. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
+		ld	bc,0*256 + BIOS.GetMemPage; ¯®«ãç¨âì 䨧. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
-		rst	08h
+		rst	ToBIOS
 		ret	c
-loop_to_bank:	push	af
+.loop:		push	af
 		out	(SLOT3),a
 		ld	hl,page_buffer		; #C000 ªã¤ 
-		ld	de,4000h		; ᪮«ìª®
+		ld	de,#4000		; ᪮«ìª®
-		ld	a,(file_handle)		; ¤¥áªà. ä ©« 
+		ld	a,(FILE1_PARAMS.handle)	; ¤¥áªà. ä ©« 
-		ld	c,13h			; ç¨â âì ä ©«
+		ld	c,Dss.Read		; ç¨â âì ä ©«
 		RST	ToDSS
 		pop	bc
-		jr	nc,ok_to_bank
+		jr	c,.error
-		ld	a,12			; ¨­¤¥ªá "Reading error"
+		; ok
+		cp	-1			; ¯à®ç¨â ­® ¬¥­ì襥 ç¨á«® ¡ ©â ?
+		ret	z			; ¤ 
+		ld	a,b			; a=䨧¨ç. áâà ­¨æ 
+		ld	c,BIOS.GetMemPageNext	; ¯®«ãç¨âì ­®¬¥à á«¥¤. 䨧. áâà ­¨æë ¡«®ª 
+		rst	ToBIOS
+		ret	c
+		cp	#FF
+		jr	nz,.loop		; ­¥ ¯®á«¥¤­ïï áâà ­¨æ 
+		ret
+		; error
+.error:		ld	a,12			; ¨­¤¥ªá "Reading error"
 		call	print_string
 		scf
 		ret
-		;
-ok_to_bank:	cp	-1			; ¯à®ç¨â ­® ¬¥­ì襥 ç¨á«® ¡ ©â ?
-		ret	z			; ¤ 
-		ld	a,b			; a=䨧¨ç. áâà ­¨æ 
-		ld	c,0C7h			; ¯®«ãç¨âì ­®¬¥à á«¥¤. 䨧. áâà ­¨æë ¡«®ª 
-		rst	08h
-		ret	c
-		cp	255
-		jr	nz,loop_to_bank		; ­¥ ¯®á«¥¤­ïï áâà ­¨æ 
-		ret
-
-
 
 
 ;====================================================
@@ -728,72 +791,76 @@ ok_to_bank:	cp	-1			;
 ; ¢å®¤: hl=¨¬ï ä ©« 
 ; ¢ë室: CF-¯à¨ ®è¨¡ª¥
 ;====================================================
-write_file:	ld	a,20h			;  âਡãâ " à娢­ë©"
+write_file:	ld	a,FAT_ATTR.ARCHIVE	;  âਡãâ " à娢­ë©"
-		ld	c,0Ah			; ᮧ¤ âì ä ©«
+		ld	c,Dss.Create		; ᮧ¤ âì ä ©«
 		RST	ToDSS
-		jr	nc,create_ok		; ¡¥§ ®è¨¡®ª
+		jr	nc,.create_ok		; ¡¥§ ®è¨¡®ª
+		push	af
 		ld	a,13			; ¨­¤¥ªá "Can't create file"
 		call	print_string
-		scf
+		pop	af
 		ret
 		;
-create_ok:	ld	(file_handle),a		; ¤¥áªà. ä ©« 
+.create_ok:	ld	(FILE1_PARAMS.handle),a	; ¤¥áªà. ä ©« 
-		ld	hl,close_file		; § ªà. ä ©«
+		ld	hl,read_file.close_file	; § ªà. ä ©«
 		push	hl			; â®çª  ¢ë室 
 		;
 		; ç⥭¨¥ ä ©«  ¨§ ¡ ­®ª ¨ § ¯¨áì ­  ¤¨áª
-		ld	a,(id_blck)		; ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
+		ld	a,(FILE1_PARAMS.id_blck)	; ¨¤¥­â¨ä. ¡«®ª  ¯ ¬ïâ¨
-		ld	b,0			; «®£. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
+		;ld	b,0			; «®£. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
-		ld	c,0C4h			; ¯®«ãç¨âì 䨧. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
+		ld	bc,BIOS.GetMemPage	; ¯®«ãç¨âì 䨧. ­®¬¥à áâà ­¨æë ¢ ¡«®ª¥
-		rst	08h
+		rst	ToBIOS
 		ret	c
-write_loop:	push	af
+.loop:		push	af
 		out	(SLOT3),a
-		ld	hl,(lsize)		; ¬«.à §àï¤ à §¬¥à  ä ©« 
+		ld	hl,(FILE1_PARAMS.sizeLow)		; ¬«.à §àï¤ à §¬¥à  ä ©« 
-		ld	de,(hsize)		; áâ.à §àï¤
+		ld	de,(FILE1_PARAMS.sizeHigh)		; áâ.à §àï¤
-		ld	bc,4000h
+		ld	bc,#4000
 		xor	a
 		sbc	hl,bc
 		ld	b,a
 		ex	de,hl
 		sbc	hl,bc
 		ex	de,hl
-		jr	c,write_end		; § ¯¨á âì ®áâ â®ª
+		jr	c,.write_end		; § ¯¨á âì ®áâ â®ª
-		ld	(lsize),hl
+		ld	(FILE1_PARAMS.sizeLow),hl
-		ld	(hsize),de
+		ld	(FILE1_PARAMS.sizeHigh),de
 		;
 		ld	hl,page_buffer		; #C000 ®âªã¤ 
-		ld	de,4000h		; ᪮«ìª®
+		ld	de,#4000		; ᪮«ìª®
-		ld	a,(file_handle)		; ¤¥áªà. ä ©« 
+		ld	a,(FILE1_PARAMS.handle)	; ¤¥áªà. ä ©« 
-		ld	c,14h			; § ¯¨áì ä ©« 
+		ld	c,Dss.Write		; § ¯¨áì ä ©« 
 		RST	ToDSS
 		pop	bc
-		jr	nc,write_ok
+		jr	c,.error
-		ld	a,14			; ¨­¤¥ªá "Writing error"
-		call	print_string
-		scf
-		ret
 		;
-write_ok:	cp	-1			; § ¯¨á ­® ¬¥­ì襥 ç¨á«® ¡ ©â ?
+.write_ok:	cp	-1			; § ¯¨á ­® ¬¥­ì襥 ç¨á«® ¡ ©â ?
+		ld	a,DSS_Error.sys.DISK_FULL
 		scf
-		ret	z			; ¤ , ­  ¤¨áª¥ ­¥â ¬¥áâ 
+		jr	nz,.error		; ¤ , ­  ¤¨áª¥ ­¥â ¬¥áâ 	
 		ld	a,b			; a=䨧¨ç. áâà ­¨æ 
-		ld	c,0C7h			; ¯®«ãç¨âì ­®¬¥à á«¥¤. 䨧. áâà ­¨æë ¡«®ª 
+		ld	c,BIOS.GetMemPageNext 	; ¯®«ãç¨âì ­®¬¥à á«¥¤. 䨧. áâà ­¨æë ¡«®ª 
-		rst	08h
+		rst	ToBIOS
 		ret	c
-		cp	255
+		cp	#FF
-		jr	nz,write_loop		; ­¥ ¯®á«¥¤­ïï áâà ­¨æ 
+		jr	nz,.loop		; ­¥ ¯®á«¥¤­ïï áâà ­¨æ 
 		ret
 		;
-write_end:	pop	af			; ¡ « ­á á⥪ 
+.write_end:	pop	af			; ¡ « ­á á⥪ 
-		ld	de,(lsize)		; ᪮«ìª®
+		ld	de,(FILE1_PARAMS.sizeLow)	; ᪮«ìª®
 		ld	a,e
 		or	d
 		ret	z			; 0 ¡ ©â®¢
 		ld	hl,page_buffer		; #C000 ®âªã¤ 
-		ld	a,(file_handle)		; ¤¥áªà. ä ©« 
+		ld	a,(FILE1_PARAMS.handle)	; ¤¥áªà. ä ©« 
-		ld	c,14h			; § ¯¨áì ä ©« 
+		ld	c,Dss.Write		; § ¯¨áì ä ©« 
 		RST	ToDSS
+		ret	nc
+		;
+.error:		push	af
+		ld	a,14			; ¨­¤¥ªá "Writing error"
+		call	print_string
+		pop	af
 		ret
 
 
@@ -807,6 +874,6 @@ code_loader.size        EQU $-code_loader
 
 ; 512 ¡ ©â, ¡ãä¥à boot-ᥪâ®à 
 buffer          equ     $
-sys_disk	equ	buffer+513		; ¤¨áª á¨á⥬ë
+sys_disk	equ	buffer+512		; ¤¨áª á¨á⥬ë
 sys_path	equ	sys_disk+1		; ¯ãâì á¨á⥬ë
 

DSS/API/Execute.ASM

@@ -544,12 +544,12 @@ EXSTACK:	DW CORE_BUFFERS.XSTACK.Spoint		;
 LEAVE:		LD	A,B
 		LD	(ErrorLevel),A
 		CALL	FREE_PROCESS_MEMORY
-		LD	SP,(EXSTACK)
 		;[x] 10/12/23 close EXE FMs
 		 CALL	FREE_PROCESS_FMs
 		;
 	_mDECTASK
-		; 
+		LD	SP,(EXSTACK)
+		; âãâ á⥪ ¢ ­ã«¥¢®© áâà ­¨æ¥!
 		 POP	AF
 		 POP	HL
 		 OUT	(SLOT1),A
@@ -561,6 +561,7 @@ LEAVE:		LD	A,B
 		 POP	HL
 		 LD	(EXSTACK),SP
 		 LD	SP,HL
+		;
 		EX	DE,HL
 		LD	A,(ErrorLevel)
 		;R12
@@ -572,6 +573,9 @@ LEAVE:		LD	A,B
 		 JP	(HL)
 		;
 .norm_exit:	AND	A
+		;!TEST
+		 EI
+		;
 		JP	(HL)
 ;/////////////////////////////////////////////////////////////////////
 

DSS/API/diskINF.asm

@@ -81,15 +81,15 @@ DISKINF:	LD	C,B
 		LD	C,4	;!HARDCODE _sBOOT_SECTOR_PARAMS.BPB_SERIAL_NUMBER
 		CALL	.mCOPY_LOOP
 		;
-		;LD	HL,CORE_BUFFERS.FatBuffer.BPB_LABEL
-		CALL	GET_LABEL
-		LD	C,11	;!HARDCODE _sBOOT_SECTOR_PARAMS.BPB_LABEL
-		CALL	.mCOPY_LOOP
 		; fat32
 		EXX
 		 PUSH	DE
 		 PUSH	HL
 		EXX
+		;LD	HL,CORE_BUFFERS.FatBuffer.BPB_LABEL
+		CALL	GET_LABEL
+		LD	C,11	;!HARDCODE _sBOOT_SECTOR_PARAMS.BPB_LABEL
+		CALL	.mCOPY_LOOP
 		PUSH	DE
 		LD	A,XH
 		LD	DE,Dss.DRV.GenIOCTL.Enter

DSS/FS/FAT/FAT.asm

@@ -722,8 +722,9 @@ RD_BPB:			; LD	C,SLOT3
 		 LD	C,A
 		 LD	(CORE_BUFFERS.FatBuffer.FAT1_SEC_H),BC  ; high word first sector FAT #1	; [ ] fat32
 		 LD	(CORE_BUFFERS.FatBuffer.FAT2_SEC_H),BC  ; high word first sector FAT #1	; [ ] fat32
-		 ;LD	(CORE_BUFFERS.FatBuffer.END_CHAIN_CLUSTER_H),BC					; [ ] fat32 reset variables
+		 LD	(CORE_BUFFERS.FatBuffer.RootDirFirstSector_H),BC
 		 LD	(CORE_BUFFERS.FatBuffer.SectorsPerFAT_H),A					; [ ] fat32
+		 ;LD	(CORE_BUFFERS.FatBuffer.END_CHAIN_CLUSTER_H),BC					; [ ] fat32 reset variables
 		;
 		;
 		LD	DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.SectorsPerFAT16)
@@ -754,7 +755,8 @@ RD_BPB:			; LD	C,SLOT3
 		JR	NZ,.loop1
 		;
 		LD	(CORE_BUFFERS.FatBuffer.RootDirFirstSector_L),HL  ; first sector DIR
-
+		LD	(CORE_BUFFERS.FatBuffer.FirstDataSector_H),BC
+		;
 		LD	BC,(CORE_BUFFERS.FatBuffer.BytesPerSector)
 		LD	A,B
 		AND	A
@@ -979,18 +981,17 @@ RD_BPB:			; LD	C,SLOT3
 		LD	(CORE_BUFFERS.FatBuffer.FAT1_SEC_H),HL
 		LD	(CORE_BUFFERS.FatBuffer.FAT2_SEC_H),HL
 		;
-.mirrored_FATs:	;
+.mirrored_FATs:	LD	HL,CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT32.LABEL
-		LD	HL,CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT32.LABEL
 		;
 		EXX
 		 LD	HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.RootDirStartCluster)
 		 LD	(CORE_BUFFERS.FatBuffer.RootDirStartCluster_L),HL
-		 LD	BC,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.RootDirStartCluster+2)
+		 LD	DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.RootDirStartCluster+2)
-		 LD	(CORE_BUFFERS.FatBuffer.RootDirStartCluster_H),BC
+		 LD	(CORE_BUFFERS.FatBuffer.RootDirStartCluster_H),DE
 		 ;
-		 CALL	CLUSTER_TO_SECTOR
+		 CALL	CLUSTER_TO_SECTOR.no_prepare
-		 LD	(CORE_BUFFERS.FatBuffer.RootDirFirstSector_L),HL
+		 LD	(CORE_BUFFERS.FatBuffer.RootDirFirstSector_L),IX
-		 LD	(CORE_BUFFERS.FatBuffer.RootDirFirstSector_H),BC
+		 LD	(CORE_BUFFERS.FatBuffer.RootDirFirstSector_H),HL
 		 ;
 		 LD	HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FSINFO_Sector)
 		 LD	(CORE_BUFFERS.FatBuffer.FSINFO_Sector),HL

DSS/FS/FAT/FAT_X.asm

@@ -968,17 +968,17 @@ GET_FAT12_CELL:
 
 
 ;[x] fat32	;!TEST
-;NSECTOR:
+;CLUSTER_TO_SECTOR:
 ; in:	HL':HL - CLUSTER
 ; out:	HL:IX  - SECTOR
 CLUSTER_TO_SECTOR:
-		PUSH	BC
 		EXX
 		 PUSH	HL
 		EXX
 		POP	DE
 		; DE:HL - cluster
 		;
+.no_prepare:	PUSH	BC
 		LD	BC,-2
 		ADD	HL,BC
 		JR	C,.no_dec_de

DSS/Structures.inc

@@ -100,14 +100,14 @@
 .END_CHAIN_CLUSTER_H:	WORD	#0FFF
 .MaxClusterLow:		WORD	#0000		; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
 .MaxClusterHigh:	WORD	#0000		; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
-.BytesPerSector		WORD	#0000
+.BytesPerSector:	WORD	#0000
-.SectorsPerCluster	BYTE	#00
+.SectorsPerCluster:	BYTE	#00
-.FSINFO_Sector		WORD	#01
+.FSINFO_Sector:		WORD	#01
-.BPB_SERIAL_NUMBER	DWORD	#00000000
+.BPB_SERIAL_NUMBER:	DWORD	#00000000
-.BPB_LABEL		BLOCK	11,' '		; 11 ¤«ï FAT, 31 ¤«ï CDFS
+.BPB_LABEL:		BLOCK	11,' '		; 11 ¤«ï FAT, 31 ¤«ï CDFS
-.UPD_FSINFO		BYTE	0
+.UPD_FSINFO:		BYTE	0
-.FREE_CLUSTERS_COUNT_L	WORD	#FFFF
+.FREE_CLUSTERS_COUNT_L:	WORD	#FFFF
-.FREE_CLUSTERS_COUNT_H	WORD	#FFFF
+.FREE_CLUSTERS_COUNT_H:	WORD	#FFFF
 ;.FilesPerSector:	BYTE	#00		; ç¨á«® ä ©«®¢ëå § ¯¨á¥© ¢ ᥪâ®à¥
 ;.ClustersPerBank:	BYTE	#00		; A - Clusters per bank (16k) (ç¨á«® ª« áâ¥à®¢ ­  ¡«®ª Ž‡“)
 ;.READ_PG:		BYTE	#00		;!TODO ­¥ ¨á¯®«ì§ãîâáï ­¥ª®â®àë¥ §­ ç¥­¨ï, ­® § ¤ã¬ª  ­¥¯«®å ï)))

DSS/build.txt

@@ -1 +1 @@
-987
+988