mirror of
https://github.com/Tolik-Trek/Estex-DSS.git
synced 2026-06-15 09:21:47 +03:00
2780 lines
62 KiB
NASM
2780 lines
62 KiB
NASM
;[BEGIN]
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||
;//MODULE: FAT
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;//CREATE: 19-05-1998 AUTHOR: Denis Parinov
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;//UPDATE: 24-10-1999 DNS Restore module
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;---------------------------------------------------------------
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;Rev Date Name Description
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;---------------------------------------------------------------
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;R08 14-11-2002 DNS IMPROVE BPB-FUNCTION
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;R07 17-12-1999 DNS BUG FIX SIGNATURE #55AA AT 510 OFFSET
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;RY01 16-11-1999 DNS ERROR READING FAT CHAIN
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;RX01 10-02-1999 DNS UPGRADE FAT CASH
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;---------------------------------------------------------------
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; [ ] RST_FS
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;----------------------------------------------------------------------;
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FAT_MODULE_START EQU $
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SET_FSInfo: LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
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CP FAT_TYPE.x32
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RET NZ
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;
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LD A,(CORE_BUFFERS.FS_Buffer.UPD_FSINFO)
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OR A
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RET Z
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;
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; „¥« ¥¬ FSInfo ᥪâ®à
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; ç¨á⨬ ᥪâ®à
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LD HL,CORE_BUFFERS.SECTOR_BUFFER
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LD DE,CORE_BUFFERS.SECTOR_BUFFER+1
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LD (HL),0
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LD BC,512 - 1 ;!HARDCODE à §¬¥à ᥪâ®à
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LDIR
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; LEAD_SIGNATURE
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LD HL,#5252
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.LEAD_SIGNATURE),HL
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LD HL,#4161
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.LEAD_SIGNATURE + 2),HL
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; DATA_SIGNATURE
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LD HL,#7272
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.DATA_SIGNATURE),HL
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LD HL,#6141
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.DATA_SIGNATURE + 2),HL
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; SECTOR_SIGNATURE
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LD HL,#AA55
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.SECTOR_SIGNATURE),HL
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; FREE_CLUSTERS_COUNT
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LD HL,(CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_L)
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.FREE_CLUSTERS_COUNT),HL
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LD HL,(CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_H)
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.FREE_CLUSTERS_COUNT+2),HL
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; FIRST_FREE_CLUSTER
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LD HL,(G_CLUST.low)
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.FIRST_FREE_CLUSTER),HL
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LD HL,(G_CLUST.high)
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LD (CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.FIRST_FREE_CLUSTER+2),HL
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; <20>¨è¥¬ ¥£® ¢¨â
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XOR A
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LD (CORE_BUFFERS.FS_Buffer.UPD_FSINFO),A
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JR WRITE_FSinfo
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; ;
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; <20>à®ç¨â âì BPB ¢ SECTOR_BUFFER
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READ_BPB: LD C,Dss.DRV.GetBPB
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JR RW_SECTOR
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; ‡ ¯¨á âì FSinfo ¨§ SECTOR_BUFFER
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WRITE_FSinfo: LD IX,(CORE_BUFFERS.FS_Buffer.FSINFO_Sector)
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LD HL,0
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;JR WRITE_SECTOR
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; ‡ ¯¨á âì ᥪâ®à ¨§ SECTOR_BUFFER
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; ‚室: HL:IX = Logical Block (sector)
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WRITE_SECTOR: LD BC,1*256 + Dss.DRV.Write
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JR RW_SECTOR
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; <20>à®ç¨â âì FSinfo ¢ SECTOR_BUFFER
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READ_FSinfo: LD IX,(CORE_BUFFERS.FS_Buffer.FSINFO_Sector)
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LD HL,0
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; <20>à®ç¨â âì ᥪâ®à ¢ SECTOR_BUFFER
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; ‚室: HL:IX = Logical Block (sector)
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READ_SECTOR: LD BC,1*256 + Dss.DRV.Read
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;
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RW_SECTOR: IN A,(SLOT3)
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PUSH AF
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IN A,(SLOT0)
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OUT (SLOT3),A
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;
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LD A,(CORE_BUFFERS.FS_Buffer.DRIVE)
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LD DE,CORE_BUFFERS.SECTOR_BUFFER+#C000
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RST ToDSS.DRV
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EX AF,AF'
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;
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POP AF
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OUT (SLOT3),A
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EX AF,AF'
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RET
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;
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; [ ] 㤠«¥¨¥ § ¯¨á¨ LFN
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;
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; ¢å®¤: IX = ⥪ãé ï § ¯¨áì ¢ áâà ¨æ¥ á ª â «®£®¬ FAT ¤«ï ª®â®à®©
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; ¤® 㤠«¨âì § ¯¨á¨ LFS
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DELETE_LFN_RECORDS:
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PUSH IX
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LD A,XH
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AND #C0
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SUB 1
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LD C,A
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; ‚ ॣ¨áâॠC ¬ ᪠¤«ï ®¯à¥¤¥«¥¨ï ¢ë室 § ¯à¥¤¥«ë áâà ¨æë
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;
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.find_LFN: LD DE, -(FAT_DIRECTORY_RECORD)
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LD A,FAT_ATTR.LFS_Entry
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;
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.loop: ADD IX,DE
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LD A,XH
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CP C
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JR Z,.beyond_boundaries
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;
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LD A,FAT_ATTR.LFS_Entry
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CP (IX+FAT_DIRECTORY_RECORD.ATTRIBUT)
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JR NZ,.exit
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LD (IX+FAT_DIRECTORY_RECORD.NAME),#E5
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JR .loop
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;
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.exit: AND A
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.beyond_boundaries: ; !TODO ¯®¤£à㧪 ¤à㣮© ç á⨠ª â «®£ . ¯®ª § £«ãèª
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POP IX
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RET
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;----------------------------------------------------------------------;
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; <20>®¨áª § ¯¨á¨ ª â «®£ ¢ ᯨ᪥ ª â «®£
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;
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; ¢å®¤: a = âਡãâ § ¯¨á¨
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; ¢ë室: de = ¨¤¥ªá § ¯¨á¨ ¢ ᯨ᪥ ª â «®£
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; (HANDBUF) = file's direcory record
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; CF - ª â «®£ ¥ ©¤¥
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SEARCH:
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.Dir: ;LD A,FAT_ATTR.DIRECTORY
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LD A,FAT_ATTR.HiddenSysDir
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CALL .Custom
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RET NC
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CP DSS_Error.sys.PATH_NOT_FOUND + 1
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RET C
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;
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SCF
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LD A,DSS_Error.sys.TOO_MANY_FILES_IN_DIR
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RET
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;
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.File: LD A,FAT_ATTR.NoDIRnoVolID
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.Custom: EX AF,AF' ; A = 76ADLSHR
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SET_PAGE_X DIRPAGE
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;PUSH AF
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EX AF,AF'
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;
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CPL
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LD C,A
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LD IX,DIRPAGE.buffer
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;!TEST 9/11/23 record index
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; ®¯â¨¬¨§ æ¨ï ¤«ï ¨¤¥ªá § ¯¨á¨ ¢ ᯨ᪥ ª â «®£ .
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; <09>® ¤®¡¨âáï ¢¥àãâì ¤«ï ¯¥à¥¡®à ª â «®£ > #4000 ¡ ©â
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; EXX
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; LD DE,0
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; EXX
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;
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.loop: LD A,(IX+FAT_DIRECTORY_RECORD.NAME)
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OR A
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JR Z,.error_file_not_found
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CP #E5 ;!HARDCODE #E5 - § ¯¨áì ¢ ¤¨à¥ªâ®à¨¨ ᢮¡®¤ , â ª ª ª ä ©«/¤¨à¥ªâ®à¨ï ¡ë«¨ 㤠«¥ë
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JR Z,.next_record
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LD A,(IX+FAT_DIRECTORY_RECORD.ATTRIBUT)
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LD D,A
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AND C
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JR NZ,.next_record
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;
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LD A,C
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INC A
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JR NZ,.found_attr
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; A=0
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OR D
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JR NZ,.next_record
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;
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.found_attr: LD HL,MASKARE
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LD D,XH
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LD E,XL
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LD B,11
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EX DE,HL
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.loop_compare: LD A,(DE)
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CP '?'
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JR Z,.next_char
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CP (HL)
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JR NZ,.next_record
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;
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.next_char: INC HL
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INC DE
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DJNZ .loop_compare
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;
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LD D,XH
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LD E,XL
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;!TEST 9/11/23 record index
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; EXX
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; PUSH DE
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; EXX
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PUSH IX
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;
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LD HL,HANDBUF
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EX DE,HL
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LD BC,HANDBUF.SIZE
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LDIR
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;!TEST 9/11/23 record index
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POP DE
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;
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EX AF,AF'
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OUT (SLOT3),A
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EX AF,AF'
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AND A
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RET
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;
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.next_record: LD DE,FAT_DIRECTORY_RECORD
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;!TEST 9/11/23 record index
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; EXX
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; INC DE
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; EXX
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;
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ADD IX,DE
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JR NC,.loop
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.error_too_many_files:
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EX AF,AF'
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OUT (SLOT3),A
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LD A,DSS_Error.sys.TOO_MANY_FILES_IN_DIR
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SCF
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RET
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;
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.error_file_not_found:
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EX AF,AF'
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OUT (SLOT3),A
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LD A,DSS_Error.sys.FILE_NOT_FOUND
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SCF
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RET
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;----------------------------------------------------------------------;
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;
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;!TODO ?
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;GHANDLE:
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; PUSH DE
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; PUSH HL
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; PUSH IX
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; CALL TESTDSK
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; JP C,G_HAND1
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; CALL LOADDIR
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; POP DE
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; LD HL,DIR
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; LD BC,FAT_DIRECTORY_RECORD
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;G_HAND2:
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; LD A,D
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; OR E
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; JP Z,G_HAND3
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; ADD HL,BC
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; DEC DE
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; JP G_HAND2
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;G_HAND3:
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; EXX
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; POP DE
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; EXX
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;G_HAND4:
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; EX DE,HL
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; LD A,DIRPAGE
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; CALL BANK
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; EX DE,HL
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; LD DE,HANDTA
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;
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; DUP 32
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; LDI
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; EDUP
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;
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; EXX
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; OUT (SLOT3),A
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; LD HL,HANDTA
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;
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; DUP 32
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; LDI
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; EDUP
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;
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; EXX
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; POP BC
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; DEC BC
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; LD A,B
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; OR C
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; RET Z
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; PUSH BC
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; JP G_HAND4
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;G_HAND1 POP IX
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; POP HL
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; POP DE
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; RET
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;HANDTA BLOCK 32,0
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;
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;----------------------------------------------------------------------;
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; FIND "MASKAREA" IN DIRECTORY
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; [x] fat32 ;!TEST
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; ¢ë室: IY:DE - cluster number
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FINDDIR:
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SET_PAGE_X DIRPAGE
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;
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PUSH AF
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LD IX,DIRPAGE.buffer
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.big_loop:
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LD A,(IX + FAT_DIRECTORY_RECORD.NAME)
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OR A
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JR Z,.error
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CP #E5
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JR Z,.next_step
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LD A,(IX + FAT_DIRECTORY_RECORD.ATTRIBUT)
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AND FAT_ATTR.DIRECTORY
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JR Z,.next_step
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LD HL,MASKARE
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LD D,XH
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LD E,XL
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EX DE,HL
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LD B,11 ;!HARDCODE
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.loop: LD A,(DE)
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CP "?"
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JR Z,.compared
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CP (HL)
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JR NZ,.next_step
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.compared:
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INC HL
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INC DE
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DJNZ .loop
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;
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LD A,(IX + FAT_DIRECTORY_RECORD.NAME)
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CP "."
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JP NZ,.ADDSPEC
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LD A,(IX + FAT_DIRECTORY_RECORD.NAME + 1)
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CP "."
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JP NZ,.IT_DIR
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LD HL,CORE_BUFFERS.WorkDirectory
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LD D,H
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LD E,L
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INC HL
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LD BC,CORE_BUFFERS.WorkDirectory.DEPTH
|
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XOR A
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CPIR
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JP PO,.error ;[x] 20/11/23 ¯à®¢¥àª ¢ë室 § £à ¨æë
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DEC HL ;R009
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DEC HL
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LD BC,CORE_BUFFERS.WorkDirectory.DEPTH
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LD A,'\'
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CPDR
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INC HL
|
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EX DE,HL
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; CF = 0
|
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SBC HL,DE
|
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EX DE,HL
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JR NZ,.MM3
|
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INC HL
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.MM3: LD (HL),0
|
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JP .IT_DIR
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;
|
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.next_step:
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LD BC,FAT_DIRECTORY_RECORD
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ADD IX,BC
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JR NC,.big_loop
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;
|
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.error: POP AF
|
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OUT (SLOT3),A
|
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LD A,DSS_Error.sys.PATH_NOT_FOUND
|
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SCF
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RET
|
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;
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.ADDSPEC:
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LD HL,CORE_BUFFERS.WorkDirectory+1
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LD BC,CORE_BUFFERS.WorkDirectory.DEPTH-1
|
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CALL .CHECK_SLASH
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JR C,.error
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;R011
|
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LD A,B
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AND A
|
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JR NZ,.nxt
|
||
LD A,C
|
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CP 8+1+3 ;!HARDCODE ¨¬ï ª â «®£ + â®çª + à áè¨à¥¨¥
|
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JR C,.error
|
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.nxt: ;
|
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LD E,XL
|
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LD D,XH
|
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; [x] ®¯â¨¬¨§ æ¨ï ¯® à §¬¥àã
|
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EX DE,HL
|
||
CALL GetName
|
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EX DE,HL
|
||
;
|
||
|
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; LD BC,256*8 + ' ' ;!HARDCODE
|
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; .MM1: LD A,(DE)
|
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; INC DE
|
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; CP C
|
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; JR Z,.MM2
|
||
; LD (HL),A
|
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; INC HL
|
||
; .MM2 DJNZ .MM1 ;x42-40 50-55
|
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; LD A,(DE)
|
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; INC DE
|
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; CP C
|
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; JR Z,.MM3
|
||
; LD (HL),"."
|
||
; INC HL
|
||
; LD (HL),A
|
||
; INC HL
|
||
; LD A,(DE)
|
||
; INC DE
|
||
; CP C
|
||
; JR Z,.MM3
|
||
; LD (HL),A
|
||
; INC HL
|
||
; LD A,(DE)
|
||
; CP C
|
||
; JR Z,.MM3
|
||
; LD (HL),A
|
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; .MM2_5: INC HL
|
||
; .MM3: LD (HL),0
|
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; ; JP IT_DIR
|
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;
|
||
.IT_DIR:; fat32
|
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LD E,(IX + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_H)
|
||
LD D,(IX + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_H+1)
|
||
LD YH,D
|
||
LD YL,E
|
||
LD E,(IX + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_L)
|
||
LD D,(IX + FAT_DIRECTORY_RECORD.FIRST_CLUSTER_L+1)
|
||
POP AF
|
||
OUT (SLOT3),A
|
||
AND A
|
||
RET
|
||
;
|
||
.CHECK_SLASH:
|
||
XOR A
|
||
CPIR
|
||
;[x] 20/11/23 ¯à®¢¥àª ¢ë室 § £à ¨æë
|
||
SCF
|
||
RET PO
|
||
;
|
||
DEC HL
|
||
DEC HL
|
||
LD A,'\' ; #5C
|
||
CP (HL)
|
||
INC HL
|
||
RET Z
|
||
LD (HL),A
|
||
INC HL
|
||
LD (HL),0
|
||
;INC HL
|
||
RET
|
||
;----------------------------------------------------------------------;
|
||
|
||
CHECK_ROOT_CLUSTER:
|
||
EX DE,HL
|
||
LD HL,(CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_L) ;R005
|
||
LD A,L
|
||
OR H
|
||
LD HL,(CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_H)
|
||
OR L
|
||
OR H
|
||
EX DE,HL
|
||
RET
|
||
|
||
;----------------------------------------------------------------------;
|
||
; ¢å®¤: HL - ¨¬ï ¤¨à¥ªâ®à¨¨
|
||
; [x] fat32 ;!TEST
|
||
|
||
OPENDIR: LD IY,CORE_BUFFERS.FM_BUF
|
||
LD A,(HL)
|
||
OR A
|
||
JR NZ,.SUBDIR
|
||
;
|
||
.REROOT: LD DE,0 ; !FIXIT ; [ ] CDFS - ¡à âì ¯¥à¢ë© ª« áâ¥à ¨§ ¯¥à¥¬¥®©
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_L),DE
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_H),DE
|
||
CALL LOADDIR
|
||
; CF=0
|
||
LD HL,CORE_BUFFERS.WorkDirectory
|
||
LD (HL),'\'
|
||
INC HL
|
||
LD (HL),#00
|
||
;AND A
|
||
RET
|
||
;
|
||
.SUBDIR: CP "."
|
||
JR NZ,.SUBDIR2
|
||
; fat32
|
||
CALL CHECK_ROOT_CLUSTER
|
||
JR NZ,.no_root ;R005
|
||
; "cd ." or "cd .."
|
||
;R005
|
||
INC HL
|
||
LD A,(HL)
|
||
OR A
|
||
DEC HL
|
||
JR Z,.REROOT
|
||
;
|
||
.no_root: EXX
|
||
LD HL,MASKARE
|
||
LD DE,MASKARE+1
|
||
LD BC,10 ;!HARDCODE
|
||
LD (HL),' '
|
||
LDIR
|
||
EXX
|
||
LD DE,MASKARE
|
||
.loop: LDI
|
||
LD A,(HL)
|
||
OR A
|
||
JR NZ,.loop
|
||
JR .SUBDIR3
|
||
;
|
||
.SUBDIR2: CALL MASK.name
|
||
RET C
|
||
; fat32
|
||
.SUBDIR3: CALL FINDDIR
|
||
RET C
|
||
EX DE,HL
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_L),HL ; fat32
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_H),IY ; fat32
|
||
LD HL,#4000 ;!HARDCODE
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.F_SIZE),HL
|
||
;-------------; EX DE,HL
|
||
; JP LOADDIR
|
||
|
||
; <20>à®ç¨â âì ᯨ᮪ ª â «®£
|
||
; [x] fat32 ;!TEST
|
||
LOADDIR: ;!TODO optimize
|
||
CALL LOAD_SAVE_DIR_PREPARE
|
||
PUSH AF
|
||
EX AF,AF'
|
||
JR NZ,.read_dir
|
||
LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
CP FAT_TYPE.x32
|
||
JR NZ,.LoadRootDir
|
||
; fat32
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.RootDirStartCluster_L)
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_L),HL
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.RootDirStartCluster_H)
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_H),HL
|
||
|
||
;LD HL,(CORE_BUFFERS.FS_Buffer.BytesPerCluster) ; !FIXIT ¢ëç¨âë¢ âì ¯®«®áâìî ª â «®£
|
||
LD HL,#4000 ; à §¬¥à ¤¨à¥ªâ®à¨¨ ;!HARDCODE
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.F_SIZE),HL
|
||
;
|
||
.read_dir: LD HL,DIRPAGE.buffer ; ªã¤
|
||
LD DE,#4000 ; ᪮«ìª®
|
||
XOR A ; ¤¥áªà¨¯â®à
|
||
CALL READ ; ç⥨¥ ¨§ ä ©«
|
||
LD (SAVEDIR.DIRSIZE),DE ; ç¨á«® ¯à®ç¨â. ¡ ©â®¢
|
||
POP AF
|
||
OUT (SLOT3),A
|
||
RET
|
||
;
|
||
.LoadRootDir: LD HL,(CORE_BUFFERS.FS_Buffer.RootDirFirstSector_H) ;!TODO ¢®§¬®¦®, å¢ â¨â LD HL,0
|
||
LD IX,(CORE_BUFFERS.FS_Buffer.RootDirFirstSector_L) ; ®¬¥à «®£. ᥪâ®à
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DirSizeInSectors)
|
||
LD B,32 ; !HARDCODE sector size 512. 16384/(sector 512). à §¬¥à root-ª â «®£
|
||
CP B
|
||
JR NC,.RTD1
|
||
LD B,A ; ç¨á«® ᥪâ®à®¢
|
||
.RTD1: PUSH AF ; 21/04/2025 fix ¬ãá®à ¢ áâà ¨æ¥ ª â «®£ , ¥á«¨ ª â «®£ ¬¥ìè¥ áâà ¨æë
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE) ; ®¬¥à ¤¨áª
|
||
LD DE,DIRPAGE.buffer ; ¡ãä¥à
|
||
LD C,Dss.DRV.Read ; ç⥨¥ ᥪâ®à®¢
|
||
RST ToDSS.DRV
|
||
; !FIXIT ¥â ¯à®¢¥àª¨ ®è¨¡ªã
|
||
; 21/04/2025 fix ¬ãá®à ¢ áâà ¨æ¥ ª â «®£ , ¥á«¨ ª â «®£ ¬¥ìè¥ áâà ¨æë
|
||
POP AF
|
||
JR NC,.exit
|
||
XOR A
|
||
LD (DE),A
|
||
;
|
||
.exit: POP AF
|
||
OUT (SLOT3),A
|
||
RET
|
||
;----------------------------------------------------------------------;
|
||
|
||
|
||
;!TODO FAT procedures
|
||
;----------------------------------------------------------------------;
|
||
|
||
LOAD_SAVE_DIR_PREPARE:
|
||
;!TODO optimize
|
||
XOR A ; FILE MANIPULATOR = 0
|
||
LD H,A
|
||
LD L,A
|
||
LD IX,0
|
||
LD B,A ; ®â ç « ä ©«
|
||
CALL MOVE_FP
|
||
;
|
||
SET_PAGE_X DIRPAGE
|
||
AND A
|
||
EX AF,AF'
|
||
;
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE)
|
||
LD (IY+_sFM.DRIVE),A
|
||
;!FIXIT ¯¥à¥¤¥« âì à ¡®âã ¡¥§ IY
|
||
LD A,(IY+_sFM.FS_REC.FIRST_CLUSTER_L)
|
||
OR (IY+_sFM.FS_REC.FIRST_CLUSTER_L+1)
|
||
OR (IY+_sFM.FS_REC.FIRST_CLUSTER_H)
|
||
OR (IY+_sFM.FS_REC.FIRST_CLUSTER_H+1)
|
||
;
|
||
EX AF,AF'
|
||
RET
|
||
|
||
;----------------------------------------------------------------------;
|
||
|
||
; ᪮¯¨à®¢ âì § ¯¨áì ¢ ᯨ᮪ ¤¨áª (ª â «®£ ) de ix iy
|
||
; ¨ á¡à®á¨âì ª¥è ª â «®£ ¤¨áª
|
||
; ¢å®¤: (HANDBUF) - § ¯¨áì ª â «®£
|
||
WRT_HND:
|
||
SET_PAGE_X DIRPAGE
|
||
EX AF,AF'
|
||
LD HL,DIRPAGE.buffer
|
||
;!TEST 9/11/23 record index
|
||
; EXX
|
||
; LD DE,0
|
||
; EXX
|
||
;
|
||
LD BC,FAT_DIRECTORY_RECORD
|
||
.loop: ;LD A,(IX+00)
|
||
LD A,(HL)
|
||
OR A
|
||
JR Z,.WRT_HN2
|
||
CP #E5
|
||
JR Z,.WRT_HN2
|
||
;ADD IX,BC
|
||
ADD HL,BC
|
||
JR NC,.loop ;!FIXIT ª®«¨ç¥á⢮ § ¯¨á¥© ª â «®£ = áâà ¨æ
|
||
;
|
||
EX AF,AF'
|
||
OUT (SLOT3),A
|
||
LD A,DSS_Error.sys.ROOT_OVERFLOW
|
||
SCF
|
||
RET
|
||
;
|
||
.WRT_HN2: ;LD D,XH
|
||
;LD E,XL
|
||
EX DE,HL
|
||
LD HL,HANDBUF
|
||
LD BC,HANDBUF.SIZE
|
||
LDIR
|
||
EX AF,AF'
|
||
OUT (SLOT3),A
|
||
LD HL,DIRPAGE.buffer
|
||
LD BC,(SAVEDIR.DIRSIZE)
|
||
DEC BC
|
||
ADD HL,BC
|
||
AND A
|
||
SBC HL,DE
|
||
JR NC,SAVEDIR
|
||
LD HL,(SAVEDIR.DIRSIZE)
|
||
LD BC,(CORE_BUFFERS.FS_Buffer.BytesPerCluster)
|
||
ADD HL,BC
|
||
LD (SAVEDIR.DIRSIZE),HL
|
||
AND A
|
||
;JP SAVEDIR
|
||
;----------------------------------------------------------------------;
|
||
; ‘¡à®á¨âì ª¥è ª â «®£ ¤¨áª.
|
||
; ¢å®¤: iy=áâàãªâãà ¤¥áªà¨¯â®à
|
||
; [x] fat32 ;!TEST
|
||
SAVEDIR: ;!TODO optimize
|
||
CALL LOAD_SAVE_DIR_PREPARE
|
||
PUSH AF
|
||
EX AF,AF'
|
||
JR NZ,.save_dir
|
||
;
|
||
LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
CP FAT_TYPE.x32
|
||
JR NZ,.SaveRootDir
|
||
; fat32
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.RootDirStartCluster_L)
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_L),HL
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.RootDirStartCluster_H)
|
||
LD (CORE_BUFFERS.FM_BUF.FS_REC.FIRST_CLUSTER_H),HL
|
||
;
|
||
.save_dir: LD HL,DIRPAGE.buffer
|
||
; à §¬¥à ᯨ᪠ª â «®£ size_cash_directory
|
||
;!FIXIT ¥á«¨ ® 㦠, â® ¯à®¢¥à¨âì ¡ £¨ ( ¯à¨¬¥à, à §¬¥à ¤¨à४â®à¨¨ ¬¥ìè¥ ¯à¨ ®âªàë⨨ ¨ ¡®«ìè¥ ¯®á«¥ ¯à ¢®ª)
|
||
; ª®£¤ ¡ã¤¥â ç⥨¥ ªã᪠¬¨ ª â «®£ ¢ ªíè, âãâ ¥éñ áçñâ稪 ¯à¨ªàãâ¨âì
|
||
.DIRSIZE+1: LD DE,0
|
||
XOR A
|
||
CALL WRITE
|
||
POP AF
|
||
OUT (SLOT3),A
|
||
RET
|
||
;
|
||
.SaveRootDir: LD HL,(CORE_BUFFERS.FS_Buffer.RootDirFirstSector_H) ;!TODO ¢®§¬®¦®, å¢ â¨â LD HL,0
|
||
LD IX,(CORE_BUFFERS.FS_Buffer.RootDirFirstSector_L)
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DirSizeInSectors)
|
||
LD B,32 ;!HARDCODE sector size 512, Root Dir max size in sectors
|
||
SUB B
|
||
JR NC,.RTD1S
|
||
ADD A,B
|
||
LD B,A
|
||
.RTD1S: LD A,(CORE_BUFFERS.FS_Buffer.DRIVE)
|
||
LD DE,DIRPAGE.buffer
|
||
LD C,Dss.DRV.Write
|
||
RST ToDSS.DRV
|
||
POP AF
|
||
OUT (SLOT3),A
|
||
RET
|
||
;----------------------------------------------------------------------;
|
||
|
||
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
||
; [x] fat32
|
||
; RD_BPB: CALL READ_BPB
|
||
; RET C
|
||
; ;
|
||
; LD DE,#AA55 ; ᨣ âãà ;R05
|
||
; LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.MBR_SIGNATURE) ;R08 ;R07
|
||
; ;[ ] CDFS
|
||
; ;R05
|
||
; AND A
|
||
; SBC HL,DE
|
||
; JP NZ,DOS_X_Error.UnknownBPB
|
||
;
|
||
; ;R08 ; [x] fat32
|
||
; LD HL,CORE_BUFFERS.SECTOR_BUFFER
|
||
; LD DE,CORE_BUFFERS.BootSector
|
||
; LD BC,_sBOOT_SECTOR_PARAMS_FAT32 ; size
|
||
; LDIR
|
||
;
|
||
FAT_BPB: LD A,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.DRIVE_TYPE)
|
||
CP #F0
|
||
JP C,RD_BPB.UnknownBPB
|
||
;
|
||
XOR A
|
||
LD (.UsesVarsFAT32),A
|
||
;
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.BytesPerSector)
|
||
LD (CORE_BUFFERS.FS_Buffer.BytesPerSector),HL
|
||
LD A,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.SectorsPerCluster)
|
||
LD (CORE_BUFFERS.FS_Buffer.SectorsPerCluster),A
|
||
; calc. first sector FAT
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.RESERVED_SECTORS)
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT1_SEC_L),HL ; low word first sector FAT #1
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT2_SEC_L),HL ; low word first sector FAT #2
|
||
;[ ] fat32
|
||
XOR A
|
||
LD B,A
|
||
LD C,A
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT1_SEC_H),BC ; high word first sector FAT #1 ; [ ] fat32
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT2_SEC_H),BC ; high word first sector FAT #1 ; [ ] fat32
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirFirstSector_H),BC
|
||
LD (CORE_BUFFERS.FS_Buffer.SectorsPerFAT_H),A ; [ ] fat32
|
||
;LD (CORE_BUFFERS.FS_Buffer.END_CHAIN_CLUSTER_H),BC ; [ ] fat32 reset variables
|
||
;
|
||
;
|
||
EXX
|
||
LD H,A
|
||
LD L,A
|
||
LD D,A
|
||
LD E,A
|
||
EXX
|
||
LD DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.SectorsPerFAT16)
|
||
LD A,E
|
||
OR D
|
||
JR NZ,.skip_high
|
||
;
|
||
LD (.UsesVarsFAT32),A
|
||
EXX
|
||
LD DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.SectorsPerFAT32 + 2)
|
||
LD A,E
|
||
EXX
|
||
;
|
||
LD (CORE_BUFFERS.FS_Buffer.SectorsPerFAT_H),A
|
||
LD DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.SectorsPerFAT32)
|
||
;
|
||
.skip_high: LD (CORE_BUFFERS.FS_Buffer.SectorsPerFAT_L),DE
|
||
LD A,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.Number_of_FATs) ; amount FATs
|
||
LD (CORE_BUFFERS.FS_Buffer.Number_Of_FATs),A
|
||
CP 1
|
||
JR Z,.one_FAT
|
||
JP C,RD_BPB.UnknownBPB
|
||
DEC A
|
||
ADD HL,DE
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT2_SEC_L),HL
|
||
EXX
|
||
ADC HL,DE
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT2_SEC_H),HL
|
||
EXX
|
||
;JR NC,.no_inc_BC
|
||
;INC BC
|
||
.no_inc_BC:;LD (CORE_BUFFERS.FS_Buffer.FAT2_SEC_H),BC
|
||
.one_FAT: ;
|
||
.loop1: ADD HL,DE
|
||
;JR NC,.loop1_1
|
||
;INC BC
|
||
EXX
|
||
ADC HL,DE
|
||
EXX
|
||
.loop1_1: DEC A
|
||
JR NZ,.loop1
|
||
;
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirFirstSector_L),HL ; first sector DIR
|
||
EXX
|
||
; ¬®¦® áà §ã âãâ § £ âì áâ à訩 ¡ ©â, ¯®â®¬ã-çâ® ¤« FAT32 á«¥¤ãî騩 à áçñâ - íâ® ¯à¨¡ ¢«¥¨¥ ã«ï.
|
||
LD (CORE_BUFFERS.FS_Buffer.FirstDataSector_H),HL
|
||
EXX
|
||
;
|
||
LD BC,(CORE_BUFFERS.FS_Buffer.BytesPerSector)
|
||
LD A,B
|
||
AND A
|
||
;
|
||
RL C
|
||
RLA
|
||
RL C
|
||
RLA
|
||
RL C
|
||
RLA
|
||
;
|
||
LD C,A
|
||
LD B,0 ; BC - File handels per sector
|
||
;;;;
|
||
IF COMPILE_UNUSED_CODE
|
||
LD (CORE_BUFFERS.FS_Buffer.FilesPerSector),A
|
||
ENDIF
|
||
;
|
||
EX DE,HL
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FilesInRootDIR) ; 0 for fat32
|
||
; fat32
|
||
LD A,H
|
||
OR L
|
||
;JR Z,.skip_loop2
|
||
JR NZ,.filesRoot
|
||
;
|
||
INC A
|
||
LD (.UsesVarsFAT32),A
|
||
DEC A
|
||
JR .skip_loop2
|
||
;
|
||
.filesRoot: DEC HL
|
||
XOR A
|
||
;NEXTAD2
|
||
.loop2: INC A
|
||
JP Z,RD_BPB.UnknownBPB
|
||
SBC HL,BC
|
||
JR NC,.loop2
|
||
;
|
||
.skip_loop2: EX DE,HL
|
||
LD C,A ; A - sectors in DIR
|
||
LD B,0
|
||
LD (CORE_BUFFERS.FS_Buffer.DirSizeInSectors),A
|
||
|
||
ADD HL,BC ; Start DATA area
|
||
LD (CORE_BUFFERS.FS_Buffer.FirstDataSector_L),HL
|
||
; B = 0
|
||
;
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.BytesPerSector)
|
||
LD A,(CORE_BUFFERS.FS_Buffer.SectorsPerCluster)
|
||
;!TODO FATcacheSize
|
||
; calc. cluster size
|
||
XOR 1
|
||
JR Z,.loop3.end
|
||
RRA
|
||
.loop3: ADD HL,HL
|
||
RRA
|
||
JP NC,.loop3
|
||
.loop3.end: ;
|
||
LD (CORE_BUFFERS.FS_Buffer.BytesPerCluster),HL
|
||
;LD DE,#8001 ; ¯à®¢¥àª à §¬¥à ª« áâ¥à ¡®«ìè¥ 32 ª¡ - ¥ ¯®¤¤¥à¦¨¢ ¥âáï ; !TODO
|
||
;AND A
|
||
;SBC HL,DE
|
||
;JP NC,DOS_X_Error.UnknownBPB ; [ ] fixed bug, thanks to @Romychs (Roman Boykov)
|
||
////////////////////////////////////////////////////////////////////////
|
||
;!TODO ¥ ¨á¯®«ì§ã¥âáï § ç¥¨ï ¢ëç¨á«ï¥¬ë¥ ¨ á®åà ï¥¬ë¥ ¢ FS_Buffer
|
||
; EX DE,HL
|
||
; LD HL,#3FFF ;!HARDCODE ;!TODO FATcacheSize
|
||
; XOR A
|
||
; ;NEXTAD4 ;!FIXIT ®¯â¨¬¨§¨à®¢ âì ª®£¤ ¯® ¤®¡¨âáï
|
||
;.loop4: INC A
|
||
; JP Z,DOS_X_Error.UnknownBPB
|
||
; SBC HL,DE
|
||
; JR NC,.loop4
|
||
; LD (CORE_BUFFERS.FS_Buffer.ClustersPerBank),A ; A - Clusters per bank (16k)
|
||
;
|
||
; LD HL,0
|
||
; LD BC,(CORE_BUFFERS.SECTOR_BUFFER + _sBOOT_SECTOR_PARAMS.SectorsPerTrack) ; Sector per track
|
||
; LD A,(CORE_BUFFERS.SECTOR_BUFFER + _sBOOT_SECTOR_PARAMS.HEADS)
|
||
;.BPB_L1: ; calc. sector per cylinder
|
||
; ADD HL,BC
|
||
; DEC A
|
||
; JR NZ,.BPB_L1
|
||
; LD (CORE_BUFFERS.FS_Buffer.S_X_H),HL
|
||
////////////////////////////////////////////////////////////////////////
|
||
; [ ] fat32
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.SectorsPerDrive)
|
||
LD A,H
|
||
OR L
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FirstDataSector_L)
|
||
JP NZ,.HDDSMAL
|
||
;
|
||
EXX
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.BPB_BIG_TOTAL_SECTORS_H)
|
||
PUSH HL ; Total Sectors high
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FirstDataSector_H)
|
||
EXX
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.BPB_BIG_TOTAL_SECTORS_L)
|
||
PUSH HL ; Total Sectors low
|
||
AND A
|
||
SBC HL,DE
|
||
EXX
|
||
SBC HL,DE
|
||
PUSH HL
|
||
EXX
|
||
POP BC
|
||
;JP NC,.HDDBIG
|
||
;DEC BC
|
||
JP .HDDBIG
|
||
;
|
||
.HDDSMAL: ; CF = 0
|
||
LD BC,0
|
||
PUSH BC ; Total Sectors high
|
||
PUSH HL ; Total Sectors low
|
||
SBC HL,DE
|
||
;
|
||
.HDDBIG: CALL SectorToCluster
|
||
;
|
||
.loop7_exit: INC HL
|
||
LD (CORE_BUFFERS.FS_Buffer.MaxClusterLow),HL
|
||
LD A,L
|
||
OR H
|
||
JR NZ,.no_inc_bc
|
||
INC BC
|
||
.no_inc_bc: LD (CORE_BUFFERS.FS_Buffer.MaxClusterHigh),BC
|
||
;
|
||
XOR A
|
||
LD H,A
|
||
LD L,A
|
||
LD (CORE_BUFFERS.FS_Buffer.CacheBlock),HL
|
||
LD (CORE_BUFFERS.FS_Buffer.CacheUpdated),A
|
||
; A = 0
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_H)
|
||
LD H,A
|
||
EX DE,HL
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_L)
|
||
; DE:HL = SectorsPerFAT
|
||
;
|
||
LD A,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.Number_of_FATs)
|
||
LD B,A
|
||
DEC A
|
||
JR Z,.loop_mul_end
|
||
; .Number_of_FATs * .SectorsPerFAT
|
||
.loop_mul: ADD HL,HL
|
||
EX DE,HL
|
||
ADC HL,HL
|
||
EX DE,HL
|
||
DJNZ .loop_mul
|
||
.loop_mul_end: ; .DirSizeInSectors + .Number_of_FATs * .SectorsPerFAT
|
||
LD B,0
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DirSizeInSectors)
|
||
LD C,A
|
||
ADD HL,BC
|
||
JR NC,.no_inc_DE
|
||
INC DE
|
||
.no_inc_DE: ; .RESERVED_SECTORS + .DirSizeInSectors + .Number_of_FATs * .SectorsPerFAT
|
||
LD BC,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.RESERVED_SECTORS)
|
||
ADD HL,BC
|
||
JR NC,.no_inc_de
|
||
INC DE
|
||
.no_inc_de: ; Total_Sectors - (.RESERVED_SECTORS + .DirSizeInSectors + .Number_of_FATs * .SectorsPerFAT)
|
||
AND A
|
||
LD B,D
|
||
LD C,E
|
||
POP DE ; Total Sectors low
|
||
EX DE,HL
|
||
SBC HL,DE
|
||
EX (SP),HL ; Total Sectors high
|
||
SBC HL,BC
|
||
POP DE ; Total Sectors low
|
||
; HL:DE = DataSec
|
||
;
|
||
LD A,(CORE_BUFFERS.FS_Buffer.SectorsPerCluster)
|
||
; HL:DE / A => DE:BC, H=0, L - ®áâ ⮪
|
||
CALL DIV_by_Shifts
|
||
; ¢ëïá塞 à §à冷áâì FAT
|
||
LD A,D
|
||
OR E
|
||
JR NZ,.its_FAT32
|
||
;
|
||
LD HL,4084
|
||
SBC HL,BC
|
||
JR NC,.its_FAT12
|
||
;
|
||
LD HL,65524
|
||
SBC HL,BC
|
||
JR C,.its_FAT32
|
||
;
|
||
; It's FAT16
|
||
LD A,(.UsesVarsFAT32)
|
||
AND A
|
||
JP NZ,RD_BPB.UnknownBPB
|
||
;
|
||
LD HL,#FFFF
|
||
LD A,FAT_TYPE.x16
|
||
.set_vars: EXX
|
||
LD HL,0
|
||
LD (CORE_BUFFERS.FS_Buffer.END_CHAIN_CLUSTER_H),HL
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirStartCluster_L),HL
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirStartCluster_H),HL
|
||
LD HL,CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT.LABEL
|
||
EXX
|
||
LD DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT.SERIAL_NUMBER)
|
||
LD BC,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT.SERIAL_NUMBER+2)
|
||
JR .SET_VARS
|
||
;
|
||
.its_FAT12: LD A,(.UsesVarsFAT32)
|
||
AND A
|
||
JP NZ,RD_BPB.UnknownBPB
|
||
;
|
||
LD HL,#0FFF
|
||
LD A,FAT_TYPE.x12
|
||
JR .set_vars
|
||
;
|
||
.its_FAT32: LD A,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.MainFATnumber)
|
||
CP #80
|
||
JR C,.mirrored_FATs ;¥á«¨ ¢á¥ ª®¯¨¨ FAT ¨á¯®«ì§ãîâáï
|
||
; ¨á¯®«ì§ã¥âáï ⮫쪮 ®¤ ª®¯¨ï FAT
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_H)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_H)
|
||
LD D,0
|
||
EXX
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_L)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_L)
|
||
AND #0F
|
||
JR Z,.first_FAT_active
|
||
LD B,A
|
||
;
|
||
.fat_calc_loop: ADD HL,DE
|
||
EXX
|
||
ADC HL,DE
|
||
EXX
|
||
DJNZ .fat_calc_loop
|
||
;
|
||
.first_FAT_active:
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT1_SEC_L),HL
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT2_SEC_L),HL
|
||
EXX
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT1_SEC_H),HL
|
||
LD (CORE_BUFFERS.FS_Buffer.FAT2_SEC_H),HL
|
||
;
|
||
.mirrored_FATs: LD HL,CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT32.LABEL
|
||
;
|
||
EXX
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.RootDirStartCluster)
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirStartCluster_L),HL
|
||
LD DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.RootDirStartCluster+2)
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirStartCluster_H),DE
|
||
;
|
||
CALL CLUSTER_TO_SECTOR.no_prepare
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirFirstSector_L),IX
|
||
LD (CORE_BUFFERS.FS_Buffer.RootDirFirstSector_H),HL
|
||
;
|
||
LD HL,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FSINFO_Sector)
|
||
LD (CORE_BUFFERS.FS_Buffer.FSINFO_Sector),HL
|
||
;
|
||
LD A,FAT_TYPE.x32
|
||
LD HL,#0FFF
|
||
LD (CORE_BUFFERS.FS_Buffer.END_CHAIN_CLUSTER_H),HL
|
||
LD H,L
|
||
LD DE,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT32.SERIAL_NUMBER)
|
||
LD BC,(CORE_BUFFERS.SECTOR_BUFFER + BOOT_SECTOR.FAT32.SERIAL_NUMBER+2)
|
||
;
|
||
.SET_VARS: LD (CORE_BUFFERS.FS_Buffer.FAT_TYPE),A
|
||
LD (CORE_BUFFERS.FS_Buffer.END_CHAIN_CLUSTER_L),HL
|
||
LD (CORE_BUFFERS.FS_Buffer.BPB_SERIAL_NUMBER),DE
|
||
LD (CORE_BUFFERS.FS_Buffer.BPB_SERIAL_NUMBER+2),BC
|
||
EXX
|
||
LD DE,CORE_BUFFERS.FS_Buffer.BPB_LABEL
|
||
LD BC,11 ;!HARDCODE
|
||
LDIR
|
||
;
|
||
SET_PAGE_X FATPAGE
|
||
PUSH AF
|
||
LD DE,0
|
||
CALL READ_FAT_TABLE
|
||
POP AF
|
||
OUT (SLOT3),A
|
||
;
|
||
; “áâ ®¢¨âì ç «ìë© ª« áâ¥à ¤«ï ç⥨ï
|
||
LD A,(CORE_BUFFERS.FS_Buffer.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 (CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_L),HL
|
||
LD (CORE_BUFFERS.FS_Buffer.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,(CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.DATA_SIGNATURE)
|
||
LD DE,(CORE_BUFFERS.SECTOR_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,(CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.FREE_CLUSTERS_COUNT)
|
||
LD DE,(CORE_BUFFERS.SECTOR_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 (CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_L),BC
|
||
LD (CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_H),DE
|
||
;
|
||
; FIRST_FREE_CLUSTER
|
||
LD BC,(CORE_BUFFERS.SECTOR_BUFFER + _sFSinfo.FIRST_FREE_CLUSTER)
|
||
LD DE,(CORE_BUFFERS.SECTOR_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 (CORE_BUFFERS.FS_Buffer.UPD_FSINFO),A
|
||
RET Z
|
||
;!TODO FREE_CLUSTERS_COUNT
|
||
;LD HL,#FFFF
|
||
;LD (CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_L),HL
|
||
;LD (CORE_BUFFERS.FS_Buffer.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,(CORE_BUFFERS.FS_Buffer.MaxClusterLow)
|
||
SBC HL,BC
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.MaxClusterHigh)
|
||
SBC HL,DE
|
||
RET
|
||
;
|
||
.UsesVarsFAT32: DB 0
|
||
;;;;;;;;
|
||
|
||
; --> BC:HL - Sector
|
||
; <-- BC:HL - Cluster
|
||
SectorToCluster:
|
||
LD A,B
|
||
AND #0F
|
||
LD B,A
|
||
LD A,(CORE_BUFFERS.FS_Buffer.SectorsPerCluster)
|
||
SCF
|
||
.loop: RRA
|
||
RET C
|
||
RR B
|
||
RR C
|
||
RR H
|
||
RR L
|
||
JP .loop
|
||
;
|
||
|
||
; DOS_X_Error:
|
||
; .UnknownBPB: LD A,DSS_Error.sys.UNKNOWN_FORMAT
|
||
; SCF
|
||
; RET
|
||
;
|
||
; .Not_ready: LD A,DSS_Error.sys.NOT_READY
|
||
; ; CF = 1
|
||
; RET
|
||
;
|
||
;
|
||
;!TODO ª ¡ãä¥à ¬!
|
||
/*
|
||
FS_Buffer:
|
||
;.MSG: DB 'FAT'
|
||
.DRIVE: DB #FF
|
||
.FAT_TYPE: DB #00 ; TYPE FAT (12 - 12bit, 16 - 16bit, 32 - 32bit) ; [x] fat32
|
||
.CacheBlock: DW #00
|
||
.CacheUpdated: DB #00
|
||
;.SectorsPerBank: DB #00
|
||
.RootDirStartCluster_L: DW #0000
|
||
.RootDirStartCluster_H: DW #0000 ; [ ] fat32
|
||
.FAT1_SEC_L: DW #0000 ; MSD_FAT_SEC first sector FAT (FAT_FRM)
|
||
.FAT1_SEC_H: DW #0000 ; [ ] fat32
|
||
.FAT2_SEC_L: DW #0000
|
||
.FAT2_SEC_H: DW #0000 ; [ ] fat32
|
||
.SectorsPerFAT_L DW #0000
|
||
.SectorsPerFAT_H DB #00
|
||
.RootDirFirstSector_L: DW #0000 ; MSD_CAT_SEC first sector DIR
|
||
.RootDirFirstSector_H: DW #0000 ; MSD_CAT_SEC first sector DIR ; !TODO ®£à ¨ç¥¨¥ ¢ 32 ƒ¨£ ;!FIXIT ¥ ¨á¯®«ì§ã¥âáï
|
||
.DirSizeInSectors: DB #00 ; DIR_SEC_SIZE
|
||
.FirstDataSector_L: DW #0000 ; MSD_DAT_SEC low
|
||
.FirstDataSector_H: DW #0000 ; MSD_DAT_SEC high ; [ ] fat32 ¡ë«® ®£à ¨ç¥¨¥ ¢ 32 ƒ¨£
|
||
.BytesPerCluster: DW #0000 ; CLUSTER_LEN
|
||
.END_CHAIN_CLUSTER_L: DW #FFFF
|
||
.END_CHAIN_CLUSTER_H: DW #0FFF ; [ ] fat3
|
||
.MaxClusterLow: DW #0000 ; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
|
||
.MaxClusterHigh: DW #0000 ; ¬ ªá. ç¨á«® ª« áâ¥à®¢ (¡¥§ á«ã¦.)
|
||
;
|
||
.BytesPerSector DW #0000
|
||
.SectorsPerCluster DB #00
|
||
.BPB_SERIAL_NUMBER DW 0,0
|
||
.BPB_LABEL BLOCK 11,' ' ; 11 ¤«ï FAT, 31 ¤«ï CDFS
|
||
IF COMPILE_UNUSED_CODE
|
||
.FilesPerSector: DB #00 ; ç¨á«® ä ©«®¢ëå § ¯¨á¥© ¢ ᥪâ®à¥
|
||
.ClustersPerBank: DB #00 ; A - Clusters per bank (16k) (ç¨á«® ª« áâ¥à®¢ ¡«®ª Ž‡“) ; ????? íâ® ¨á¯®«ì§ã¥âáï?
|
||
ENDIF
|
||
;.READ_PG: DB #00 ;!TODO ¥ ¨á¯®«ì§ãîâáï ¥ª®â®àë¥ § 票ï, ® § ¤ã¬ª ¥¯«®å ï)))
|
||
;.S_X_H: DW #0000 ; ª®«¨ç¥á⢮ ᥪâ®à®¢ 樫¨¤à¥ ; ????? íâ® ¨á¯®«ì§ã¥âáï?
|
||
;
|
||
*/
|
||
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
||
|
||
|
||
|
||
;ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ;
|
||
; FAT_X 12-16-32
|
||
;ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ;
|
||
|
||
; “¤ «ï¥â § ¯¨áì ¢ ª â «®£¥ ¨ ®á¢®¡®¦¤ ¥â § ïâãî 楯®çªã ª« áâ¥à®¢
|
||
; ‚室: IX - 㪠§ ⥫ì 㤠«ï¥¬ãî § ¯¨áì ¢ DIRPAGE
|
||
;!TODO record index. ¢®§¬®¦®, çâ® ¬®¦¥â á«®¬ âìáï, ¥á«¨ ¡®«ìè¥ áâà ¨æë
|
||
DELETE_REC_FAT: SET_PAGE_X DIRPAGE
|
||
EX AF,AF'
|
||
CALL DELETE_LFN_RECORDS ; [x] 㤠«¥¨¥ § ¯¨á¨ LFN
|
||
LD (IX + FAT_DIRECTORY_RECORD.NAME),#E5 ; ¯à¨§ ª 㤠«¥¨ï ä ©«
|
||
; fat32
|
||
LD L,(IX+FAT_DIRECTORY_RECORD.FIRST_CLUSTER_H) ; ü ¯¥à¢®£® ª« áâ¥à
|
||
LD H,(IX+FAT_DIRECTORY_RECORD.FIRST_CLUSTER_H+1)
|
||
LD A,L
|
||
OR H
|
||
EXX
|
||
LD L,(IX+FAT_DIRECTORY_RECORD.FIRST_CLUSTER_L) ; ü ¯¥à¢®£® ª« áâ¥à
|
||
LD H,(IX+FAT_DIRECTORY_RECORD.FIRST_CLUSTER_L+1)
|
||
OR L
|
||
OR H
|
||
;
|
||
EX AF,AF'
|
||
OUT (SLOT3),A
|
||
EX AF,AF'
|
||
JP Z,SAVEDIR ; á¡à®á¨âì ª¥è ª â «®£ ¤¨áª
|
||
; ¥á«¨ à §¬¥à ä ©« ¥ ®«ì
|
||
.loop: ;EX DE,HL ; hl=®¬¥à ª« áâ¥à
|
||
;EXX
|
||
; EX DE,HL
|
||
;EXX
|
||
CALL READ_FROM_FAT ; ¯à®ç¨â âì ¨§ ª¥è FAT- ®¬¥à á«¥¤. ª« áâ¥à
|
||
EXX
|
||
PUSH DE ; ®¬¥à á«¥¤. ª« áâ¥à
|
||
PUSH AF
|
||
LD DE,#0000 ; ®¬¥à ª« áâ¥à
|
||
EXX
|
||
PUSH DE
|
||
;
|
||
CALL SET_NEW_FREE_CLUSTER
|
||
;
|
||
LD DE,#0000 ; ®¬¥à ª« áâ¥à
|
||
CALL WRITE_TO_FAT.Custom ; § ¯¨á âì ¢ ª¥è FAT- ®¬¥à ª« áâ¥à
|
||
POP HL
|
||
EXX
|
||
POP AF
|
||
POP HL
|
||
;EX DE,HL
|
||
EXX
|
||
;EX DE,HL
|
||
JP NC,.loop
|
||
CALL WRITE_FAT_TABLE
|
||
JP SAVEDIR ; á¡à®á¨âì ª¥è ª â «®£ ¤¨áª
|
||
|
||
; “áâ ®¢¨âì ¯¥à¢ë¬ ¨§¢¥áâë¬ ª« áâ¥à®¬ ¤«ï ¯®¨áª ᢮¡®¤®£®.
|
||
; “áâ ®¢¨âáï ⮫쪮 ¥á«¨ ¬¥ìè¥ ¯à¥¤ë¤ã饣®
|
||
; ‚室: HL':HL - cluster
|
||
; ¯®àâ¨â DE, BC' ¨ A
|
||
; [x] à ìè¥ ¡ë« è á 㯥à¥âìáï ¢ "DISK FULL" ¥á«¨ G_CLUST 㪠§ë¢ « ª« áâ¥à ¤ «ìè¥, 祬 ¤à㣮© ᢮¡®¤ë©
|
||
; [ ] free clusters for FSInfo
|
||
SET_NEW_FREE_CLUSTER:
|
||
LD A,1 ; 㢥«¨ç¨âì
|
||
CALL SET_NEW_FREE_CLUSTERS ; [ ] free clusters for FSInfo
|
||
; CF=0
|
||
;
|
||
EX DE,HL
|
||
LD HL,(G_CLUST.low)
|
||
SBC HL,DE
|
||
EX DE,HL
|
||
;
|
||
EXX
|
||
LD B,D
|
||
LD C,E
|
||
EX DE,HL
|
||
LD HL,(G_CLUST.high)
|
||
SBC HL,DE
|
||
EX DE,HL
|
||
LD D,B
|
||
LD E,C
|
||
EXX
|
||
RET C
|
||
;
|
||
JR G_CLUST.set_new
|
||
; LD (G_CLUST.low),HL
|
||
; EXX
|
||
; LD (G_CLUST.high),HL
|
||
; EXX
|
||
; XOR A
|
||
; INC A
|
||
; LD (CORE_BUFFERS.FS_Buffer.RESET_FSINFO),A
|
||
; RET
|
||
|
||
;
|
||
; [x] fat32 ;!TEST
|
||
; ©â¨ ¯¥à¢ë© ᢮¡®¤ë© ª« áâ¥à ;!TODO ¯à®¢¥à¨âì ¯¥à¥¡®à ª« áâ¥à®¢
|
||
; ¢ë室: HL - ¬« ¤è¨© ®¬¥à ᢮¡®¤®£® ª« áâ¥à
|
||
; HL' - áâ à訩 ®¬¥à ᢮¡®¤®£® ª« áâ¥à
|
||
G_CLUST: ;
|
||
.low+1: LD HL,#0001
|
||
EXX
|
||
.high+1: LD HL,#0000
|
||
EXX
|
||
.loop: INC HL ; ®¬¥à ª« áâ¥à
|
||
LD A,L
|
||
OR H
|
||
; [x] fat32
|
||
EXX
|
||
JR NZ,.no_inc
|
||
INC HL
|
||
.no_inc: EXX
|
||
;
|
||
CALL READ_FROM_FAT ; ¯à®ç¨â âì ¨§ ª¥è FAT- ®¬¥à á«¥¤. ª« áâ¥à
|
||
CP DSS_Error.sys.DISK_FULL
|
||
SCF
|
||
RET Z
|
||
;
|
||
EXX
|
||
LD A,D
|
||
OR E
|
||
EXX
|
||
OR D
|
||
OR E
|
||
JR NZ,.loop
|
||
.set_new: ; A = 0
|
||
LD (G_CLUST.low),HL
|
||
EXX
|
||
LD (G_CLUST.high),HL
|
||
EXX
|
||
INC A
|
||
LD (CORE_BUFFERS.FS_Buffer.UPD_FSINFO),A
|
||
RET
|
||
|
||
; ‚室: A - 㬥ìè¨âì (0) ¨«¨ 㢥«¨ç¨âì (!0) ç¨á«® ᢮¡®¤ëå ª« áâ¥à®¢
|
||
SET_NEW_FREE_CLUSTERS:
|
||
EX AF,AF
|
||
PUSH HL
|
||
PUSH DE
|
||
EXX
|
||
PUSH HL
|
||
PUSH DE
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_H)
|
||
LD A,H
|
||
AND L
|
||
EXX
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_L)
|
||
AND H
|
||
AND L
|
||
INC A
|
||
EXX
|
||
JR Z,.no_change
|
||
EXX
|
||
;
|
||
EX AF,AF
|
||
OR A
|
||
JR Z,.dec_clusters
|
||
; inc clusters
|
||
INC HL
|
||
LD A,H
|
||
OR L
|
||
JR NZ,.set_new
|
||
EXX
|
||
INC HL
|
||
EXX
|
||
;
|
||
.set_new: LD A,1
|
||
LD (CORE_BUFFERS.FS_Buffer.UPD_FSINFO),A
|
||
;
|
||
LD (CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_L),HL
|
||
EXX
|
||
LD (CORE_BUFFERS.FS_Buffer.FREE_CLUSTERS_COUNT_H),HL
|
||
.no_change: POP DE
|
||
POP HL
|
||
EXX
|
||
POP DE
|
||
POP HL
|
||
RET
|
||
;
|
||
.dec_clusters: LD A,H
|
||
OR L
|
||
DEC HL
|
||
JR NZ,.set_new
|
||
EXX
|
||
DEC HL
|
||
EXX
|
||
JP .set_new
|
||
; ;
|
||
|
||
;
|
||
; [x] fat32 ;!TEST
|
||
; <20>ਪ९¨âì ª ¯®á«¥¤¥¬ã ª« áâ¥àã 楯®çª¨ ®¢ë© ¯ãá⮩ ª« áâ¥à
|
||
; ‚室: HL':HL - ®¬¥à ª« áâ¥à ª ª®â®à®¬ã ¯à¨ªà¥¯¨âì ¯ãá⮩
|
||
; ‚ë室: HL':HL - ®¬¥à ª« áâ¥à ª ª®â®à®¬ã ¯à¨ªà¥¯¨«áï ¯ãá⮩
|
||
; DE':DE - ®¬¥à ¯ãá⮣® ª« áâ¥à
|
||
INC_FAT: PUSH HL ; ⥪ã騩 ª« áâ¥à
|
||
EXX
|
||
PUSH HL ; ⥪ã騩 ª« áâ¥à
|
||
EXX
|
||
;
|
||
CALL G_CLUST
|
||
;
|
||
EXX
|
||
POP DE ; ⥪ã騩 ª« áâ¥à
|
||
EXX
|
||
POP DE ; ⥪ã騩 ª« áâ¥à
|
||
RET C
|
||
; HL':HL - ᢮¡®¤ë© ª« áâ¥à, DE':DE - ⥪ã騩 ª« áâ¥à
|
||
;
|
||
EX DE,HL
|
||
EXX
|
||
EX DE,HL
|
||
EXX
|
||
;
|
||
CALL WRITE_TO_FAT.Custom ; § ¯¨á âì ¢ ª¥è FAT- ®¬¥à ª« áâ¥à
|
||
;!FIXIT <¥â ª®âà®«ï ®è¨¡ª¨>
|
||
;
|
||
PUSH HL
|
||
EX DE,HL
|
||
EXX
|
||
PUSH HL
|
||
EX DE,HL
|
||
EXX
|
||
;
|
||
CALL WRITE_TO_FAT ; § ¯¨á âì ¢ ª¥è FAT- ®¬¥à ª« áâ¥à
|
||
;!TEST ;!TODO 2/12/23 ; [ ] ¡ £ á ¨§¡ëâ®ç®© § ¯¨áìî WRITE_FAT_TABLE?
|
||
;CALL WRITE_FAT_TABLE ; ¯®¤ª«. ¡ ªã ª¥è FAT ¨ § ¯¨á âì ¥£® ¤¨áª
|
||
;
|
||
EXX
|
||
POP DE
|
||
EX DE,HL
|
||
EXX
|
||
POP DE
|
||
EX DE,HL
|
||
;
|
||
; [ ] free clusters for FSInfo
|
||
XOR A ; 㬥ìè¨âì
|
||
CALL SET_NEW_FREE_CLUSTERS ; [ ] free clusters for FSInfo
|
||
RET
|
||
;RX01
|
||
|
||
|
||
; [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,(CORE_BUFFERS.FS_Buffer.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,(CORE_BUFFERS.FS_Buffer.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,(CORE_BUFFERS.FS_Buffer.MaxClusterLow)
|
||
SBC HL,DE
|
||
EX DE,HL
|
||
LD A,DSS_Error.sys.DISK_FULL
|
||
RET
|
||
;
|
||
|
||
;
|
||
;[x] fat32 ;!TEST
|
||
;------------------------------------------------------------------------------------------------
|
||
; <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
|
||
;
|
||
SET_PAGE_X FATPAGE
|
||
;
|
||
PUSH HL
|
||
PUSH AF
|
||
LD A,(CORE_BUFFERS.FS_Buffer.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 客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
|
||
;
|
||
|
||
; ‚室: HL - <20>®¬¥à ¯¥à¢®© ï祩ª¨ ª« áâ¥à ¢ ¡«®ª¥ ä â
|
||
; <20>®àâ¨âì ⮫쪮 HL ¨ A
|
||
SET_FAT32_CACHE_BLOCK_CHANGED_REGION:
|
||
;DEC HL
|
||
;LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
;CP FAT_TYPE.x16 + 1
|
||
;JR C,.start
|
||
;DEC HL
|
||
;DEC HL
|
||
;
|
||
.start: LD A,H
|
||
AND #38
|
||
LD HL,#0108
|
||
JR Z,.set_region
|
||
;
|
||
.loop: SLA H
|
||
;AND A
|
||
SUB L
|
||
JR NZ,.loop
|
||
;
|
||
.set_region: LD A,(CORE_BUFFERS.FS_Buffer.CacheUpdated)
|
||
OR H
|
||
LD (CORE_BUFFERS.FS_Buffer.CacheUpdated),A
|
||
RET
|
||
|
||
;
|
||
; [x] fat32 ;!TEST
|
||
;
|
||
; !TODO optimize
|
||
; ¯à¨ § ¯¨á¨ ¢ ªíè § ç¥¨ï ®â¬¥ç âì ç¥à¥§ OR ¢ ï祩ª¥ FS_Buffer.SectorOfCacheBlock
|
||
; ¡¨â ᮮ⢥âáâ¢ãî騩 ªãáªã ¢ áâà ¨æ¥ ªíè , ª®â®àë© ¡ë« ¨§¬¥ñ ¨ ¯®â®¬ ᪨¤ë¢ âì ¤¨áª
|
||
; ⮫쪮 ⥠ªã᪨, ª®â®àë¥ ¡ë«¨ ¨§¬¥¥ë.
|
||
; |--------------------|
|
||
; | bit | adresses |
|
||
; |-----|--------------|
|
||
; | 0 | #0000..#07FF |
|
||
; | 1 | #0800..#0FFF |
|
||
; | 2 | #1000..#17FF |
|
||
; | 3 | #1800..#1FFF |
|
||
; | 4 | #2000..#27FF |
|
||
; | 5 | #2800..#2FFF |
|
||
; | 6 | #3000..#37FF |
|
||
; | 7 | #3800..#3FFF |
|
||
; |--------------------|
|
||
;
|
||
;------------------------------------------------------------------------------------------------
|
||
; ‡ ¯¨á âì ¢ ª¥è FAT- ®¬¥à ª« áâ¥à
|
||
; ¢å®¤: hl = ¬« ¤è¥¥ á«®¢® ®¬¥à ª« áâ¥à ¢ ª®â®àë© § ¯¨á âì
|
||
; hl' = áâ à襥 á«®¢® ®¬¥à ª« áâ¥à ¢ ª®â®àë© § ¯¨á âì (⮫쪮 ¤«ï fat32)
|
||
; .Custom:
|
||
; de = ¬« ¤è¥¥ á«®¢® ®¬¥à ª« áâ¥à ª®â®à®¥ ¢¯¨á âì
|
||
; de' = áâ à襥 á«®¢® ®¬¥à ª« áâ¥à ª®â®à®¥ ¢¯¨á âì (⮫쪮 ¤«ï fat32)
|
||
; ¢ë室: HL':HL â ª¨¥ ¦¥ ª ª ¨ ¢å®¤¥
|
||
; .Custom:
|
||
; HL':HL ¨ DE':DE â ª¨¥ ¦¥ ª ª ¨ ¢å®¤¥
|
||
;------------------------------------------------------------------------------------------------
|
||
WRITE_TO_FAT: LD DE,(CORE_BUFFERS.FS_Buffer.END_CHAIN_CLUSTER_L) ; ®¬¥à ª« áâ¥à
|
||
EXX
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.END_CHAIN_CLUSTER_H) ; ®¬¥à ª« áâ¥à
|
||
EXX
|
||
.Custom: PUSH DE
|
||
EXX
|
||
PUSH DE
|
||
EXX
|
||
CALL CHECK_CLUSTER_IS_SMALLER
|
||
EXX
|
||
POP DE
|
||
EXX
|
||
POP DE
|
||
RET C
|
||
;
|
||
EXX
|
||
SET_PAGE_X FATPAGE
|
||
EXX
|
||
PUSH HL
|
||
AND A
|
||
PUSH AF
|
||
PUSH DE ; ¬« ¤è¨© ®¬¥à ª« áâ¥à ª®â®àë© ¢¯¨á âì
|
||
; [x] 2/12/23 FAT ¥ ¢á¥£¤ ¬®£ § ¯¨á âìáï HDD
|
||
;LD A,1
|
||
;LD (CORE_BUFFERS.FS_Buffer.CacheUpdated),A
|
||
;
|
||
LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
CP FAT_TYPE.x16
|
||
JR C,.FAT12
|
||
JR NZ,.FAT32
|
||
;
|
||
.FAT16: CALL GET_FAT16_CELL
|
||
POP DE ; ¬« ¤è¨© ®¬¥à ª« áâ¥à ª®â®àë© ¢¯¨á âì
|
||
LD (HL),E ; á®åà. ¢ ª¥è¥ FAT-
|
||
INC HL ; ®¬¥à ª« áâ¥à
|
||
LD (HL),D
|
||
.exit: ;
|
||
; [ ] ã᪮२¥ à ¡®âë á ªí襬 FAT
|
||
CALL SET_FAT32_CACHE_BLOCK_CHANGED_REGION
|
||
;
|
||
POP AF ; ¢®ááâ. ¯®àâ
|
||
POP HL
|
||
OUT (SLOT3),A
|
||
; [x] 2/12/23 FAT ¥ ¢á¥£¤ ¬®£ § ¯¨á âìáï HDD
|
||
;LD A,#FF
|
||
;LD (CORE_BUFFERS.FS_Buffer.CacheUpdated),A
|
||
;
|
||
; CF = 0
|
||
RET
|
||
;
|
||
.FAT12: ;!FIXIT ¯¥à¥¤¥« âì ¯¥à¥¬¥ë¥ FAT_CACHE
|
||
CALL GET_FAT12_CELL
|
||
POP DE ; ¬« ¤è¨© ®¬¥à ª« áâ¥à ª®â®àë© ¢¯¨á âì
|
||
JR C,.Correct_1 ; ®¬¥à ¥çñâë©
|
||
LD (HL),E
|
||
INC HL
|
||
LD A,(HL)
|
||
AND #F0
|
||
OR D
|
||
LD (HL),A
|
||
JR .exit
|
||
;
|
||
.Correct_1: ; ¢«¥¢® 4 ¡¨âa
|
||
PUSH DE
|
||
EX DE,HL
|
||
ADD HL,HL
|
||
ADD HL,HL
|
||
ADD HL,HL
|
||
ADD HL,HL
|
||
EX DE,HL
|
||
;
|
||
LD A,(HL)
|
||
AND #0F
|
||
OR E
|
||
LD (HL),A ; á®åà. ¢ ª¥è¥ FAT-
|
||
INC HL ; ®¬¥à ª« áâ¥à
|
||
LD (HL),D
|
||
POP DE
|
||
JR .exit
|
||
;
|
||
.FAT32: ; [x] fat32 ;!TEST
|
||
EXX
|
||
PUSH DE ; áâ à訩 ®¬¥à ª« áâ¥à ª®â®àë© ¢¯¨á âì
|
||
PUSH HL ; áâ à襥 á«®¢® ®¬¥à ª« áâ¥à ¢ ª®â®àë© § ¯¨á âì
|
||
EXX
|
||
CALL GET_FAT32_CELL
|
||
EXX
|
||
POP HL ; áâ à襥 á«®¢® ®¬¥à ª« áâ¥à ¢ ª®â®àë© § ¯¨á âì
|
||
POP DE
|
||
PUSH DE ; áâ à訩 ®¬¥à ª« áâ¥à ª®â®àë© ¢¯¨á âì
|
||
EXX
|
||
POP BC ; áâ à訩 ®¬¥à ª« áâ¥à ª®â®àë© ¢¯¨á âì
|
||
POP DE ; ¬« ¤è¨© ®¬¥à ª« áâ¥à ª®â®àë© ¢¯¨á âì
|
||
; á®åà. ¢ ª¥è¥ FAT- ®¬¥à ª« áâ¥à
|
||
LD (HL),E
|
||
INC HL
|
||
LD (HL),D
|
||
INC HL
|
||
LD (HL),C
|
||
INC HL
|
||
LD A,(HL)
|
||
AND #F0
|
||
OR B
|
||
LD (HL),A
|
||
JR .exit
|
||
;;;;;;;;;
|
||
|
||
|
||
|
||
; [x] fat32 ;!TEST
|
||
;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,(CORE_BUFFERS.FS_Buffer.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
|
||
; GET_SECTOR_OF_FAT:
|
||
; XOR A
|
||
; LD B,A
|
||
; LD C,A
|
||
; DUP FAT_CACHE.Degree ; 4
|
||
; ADD HL,HL ;x2
|
||
; ADC A,C
|
||
; EDUP
|
||
; LD C,A
|
||
; LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
; CP FAT_TYPE.x32
|
||
; RET NZ
|
||
; ADD HL,HL ;x2
|
||
; RET NC
|
||
; INC C
|
||
; RET
|
||
;;;;;;;;;
|
||
|
||
|
||
; [x] fat32 ;!TEST
|
||
;RE_FAT:
|
||
;RX01
|
||
; <20>à®ç¨â âì ¢ ª¥è •• ᥪâ®à®¢ FAT-
|
||
; DE - NEW FAT BLOCK
|
||
READ_FAT_TABLE: PUSH HL
|
||
PUSH DE
|
||
LD A,(CORE_BUFFERS.FS_Buffer.CacheUpdated)
|
||
OR A
|
||
CALL NZ,WRITE_FAT_TABLE.Start
|
||
POP DE
|
||
;
|
||
EX DE,HL
|
||
LD (CORE_BUFFERS.FS_Buffer.CacheBlock),HL
|
||
;
|
||
CALL GET_SECTOR_OF_FAT
|
||
;
|
||
; BC:HL - ®¬¥à «®£.ᥪâ®à
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_L)
|
||
ADD HL,DE
|
||
EX DE,HL
|
||
LD XH,D
|
||
LD XL,E
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_H)
|
||
; JR NC,.no_inc
|
||
; INC HL
|
||
.no_inc: ADC HL,BC
|
||
; HL:IX - SECTOR FAT FOR READING
|
||
LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
XOR FAT_TYPE.x32
|
||
LD BC,FAT_CACHE.Sectors_16 * 256 + Dss.DRV.Read ; ॣ B * FAT_CACHE.Sector_Size = CASH SIZE
|
||
JR NZ,.next
|
||
LD B,FAT_CACHE.Sectors_32 ; ॣ B * FAT_CACHE.Sector_Size = CASH SIZE
|
||
.next: LD DE,FATPAGE.cache ; ªã¤ ; DE - FAT ADDRESS
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE) ; ®¬¥à ¤¨áª
|
||
RST ToDSS.DRV
|
||
POP HL
|
||
RET
|
||
|
||
|
||
; [x] fat32 ;!TEST
|
||
; <20>®¤ª«îç¨âì ¡ ªã ª¥è FAT ¨ § ¯¨á âì ¥£® ¤¨áª
|
||
WRITE_FAT_TABLE:
|
||
SET_PAGE_X FATPAGE
|
||
PUSH AF
|
||
CALL .Start ;!TODO ¥â ª®âà®«ï ®è¨¡®ª
|
||
POP AF
|
||
OUT (SLOT3),A
|
||
RET
|
||
; ‡ ¯¨áì ª¥è FAT- ¤¨áª
|
||
.Start: CALL SET_FSInfo
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.CacheBlock)
|
||
;FAT_BLOCK * Sectors_in_Block = SECTOR_OF_FAT
|
||
CALL GET_SECTOR_OF_FAT
|
||
; B=0, C:HL - ᬥ饨¥ ¢ ᥪâ®à å ¢ãâਠ⠡«¨æë FAT ç «® ¡«®ª
|
||
LD (.pop_offset_HL),HL
|
||
LD DE,FAT_CACHE.Sectors_32
|
||
LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
CP FAT_TYPE.x32
|
||
JR Z,.next
|
||
LD DE,FAT_CACHE.Sectors_16 ; !FIXIT ¡à âì íâ® § 票¥ ¨§ ¯¥à¥¬¥®© ¢¥§¤¥
|
||
;
|
||
.next: ADD HL,DE ;+ SIZE CASH (16 SECTORS)
|
||
JR NC,.no_inc
|
||
INC C
|
||
.no_inc: ; C:HL ᬥ饨¥ ¢ ᥪâ®à å ¢ãâਠ⠡«¨æë FAT ª®¥æ ¡«®ª
|
||
;
|
||
; ª®¥æ ¡«®ª ¢ë室¨â § ¯à¥¤¥«ë â ¡«¨æë?
|
||
LD B,E ; MAX ç¨á«® ᥪâ®à®¢ ¤«ï çâ¥¨ï ¢ ªíè
|
||
LD A,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_H)
|
||
LD (.sub_A),A
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_L)
|
||
AND A
|
||
LD A,C
|
||
SBC HL,DE
|
||
.sub_A+1: SBC A,0
|
||
JR C,.WALLFAT ; ‘F=1: ¥ ¢ë室¨â
|
||
OR A
|
||
JP NZ,.ERR
|
||
;
|
||
EX DE,HL
|
||
; DE - ᪮«ìª® ᥪâ®à®¢ ª®¥æ ¡«®ª ¢ë室¨â § ¯à¥¤¥«ë â ¡«¨æë.
|
||
LD HL,FAT_CACHE.Sectors_16 ; !FIXIT ¡à âì íâ® § 票¥ ¨§ ¯¥à¥¬¥®© ¢¥§¤¥
|
||
; CF = 0
|
||
SBC HL,DE
|
||
;SBC A,0
|
||
JR C,.ERR ;!TODO ¯à®¢¥à¨âì
|
||
LD B,L ; ç¨á«® ᥪâ®à®¢ ¤«ï çâ¥¨ï ¢ ªíè
|
||
.WALLFAT: ;
|
||
.pop_offset_HL+1:
|
||
LD HL,0
|
||
; B = ç¨á«® ᥪâ®à®¢
|
||
LD IX,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_H)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_L)
|
||
PUSH BC
|
||
; á®åà 塞 ¯¥à¢ãî ª®¯¨î FAT. ‚室 IX:DE - ç «® â ¡«¨æë FAT
|
||
; C:HL - ᬥ饨¥ ¢ãâਠ⠡«¨æë
|
||
; B - ª®«¨ç¥á⢮ ᥪâ®à®¢
|
||
CALL .SAVE_FAT_XX
|
||
; [x] ¥á«¨ ¢á¥£® ®¤ â ¡«¨æ FAT, â® ¯®¢â®à®© § ¯¨á¨ ¥ ¯à®¨á室¨â 13/03/2024
|
||
POP BC ; B = ç¨á«® ᥪâ®à®¢, C = áâ à訩 ¡ ©â á¬¥é¥¨ï ¢ ᥪâ®à å
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_H)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FAT2_SEC_H)
|
||
AND A
|
||
SBC HL,DE
|
||
JR NZ,.not_one_FAT
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FAT2_SEC_L)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FAT1_SEC_L)
|
||
; CF = 0
|
||
SBC HL,DE
|
||
JR Z,.only_one_FAT
|
||
;
|
||
.not_one_FAT: LD A,(CORE_BUFFERS.FS_Buffer.FAT_TYPE)
|
||
CP FAT_TYPE.x32
|
||
JR NZ,.fat_num_2
|
||
;
|
||
LD A,(CORE_BUFFERS.FS_Buffer.Number_Of_FATs)
|
||
CP 2
|
||
JR Z,.fat_num_2
|
||
; á®åà 塞 ¡®«ìè¥ ¤¢ãå ª®¯¨© FAT
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FAT2_SEC_H)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_H)
|
||
LD D,0
|
||
EXX
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.FAT2_SEC_L)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_L)
|
||
DEC A
|
||
.many_fat_loop: EXX
|
||
PUSH HL
|
||
PUSH HL
|
||
POP IX
|
||
EXX
|
||
PUSH HL
|
||
PUSH BC
|
||
EX DE,HL
|
||
LD HL,(.pop_offset_HL)
|
||
CALL .SAVE_FAT_XX
|
||
POP BC
|
||
POP HL
|
||
;
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_L)
|
||
ADD HL,DE
|
||
EXX
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.SectorsPerFAT_H)
|
||
POP HL
|
||
ADC HL,DE
|
||
EXX
|
||
DEC A
|
||
JR NZ,.many_fat_loop
|
||
JR .norm_exit
|
||
;
|
||
; á®åà 塞 ¢â®àãî ª®¯¨î FAT
|
||
.fat_num_2: LD IX,(CORE_BUFFERS.FS_Buffer.FAT2_SEC_H)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FAT2_SEC_L)
|
||
LD HL,(.pop_offset_HL)
|
||
CALL .SAVE_FAT_XX
|
||
.norm_exit: AND A ;!TODO ¥â ª®âà®«ï ®è¨¡®ª
|
||
.only_one_FAT: ;
|
||
.ERR: LD A,0
|
||
LD (CORE_BUFFERS.FS_Buffer.CacheUpdated),A
|
||
RET
|
||
; ‚室: IX:DE - ç «® â ¡«¨æë FAT ¢ ᥪâ®à å
|
||
; C:HL - ᬥ饨¥ ¢ â ¡«¨æ¥ ¢ ᥪâ®à å
|
||
; B - ª®«¨ç¥á⢮ ᥪâ®à®¢
|
||
.SAVE_FAT_XX: ADD HL,DE
|
||
JR NC,.no_inc_C
|
||
INC C
|
||
; ®¬¥à «®£. ᥪâ®à
|
||
.no_inc_C: LD D,0
|
||
LD E,C
|
||
ADD IX,DE
|
||
LD D,XH
|
||
LD E,XL
|
||
EX DE,HL
|
||
LD XH,D
|
||
LD XL,E
|
||
; HL:IX - ᬥ饨¥ ¢ãâà¨ à §¤¥« ç «® 㦮£® ¡«®ª FAT
|
||
LD A,(CORE_BUFFERS.FS_Buffer.CacheUpdated)
|
||
CP #FF
|
||
JR NZ,.SAVE_NOT_ALL_BLOCK
|
||
;
|
||
LD DE,FATPAGE.cache ; ®âªã¤
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE) ; ®¬¥à ¤¨áª
|
||
LD C,Dss.DRV.Write
|
||
JP ToDSS.DRV
|
||
;
|
||
.SAVE_NOT_ALL_BLOCK:
|
||
; A = CORE_BUFFERS.FS_Buffer.CacheUpdated
|
||
; HL:IX - ᬥ饨¥ ¢ãâà¨ à §¤¥« ç «® 㦮£® ¡«®ª FAT
|
||
; B = ¬ ªá¨¬ «ì®¥ ç¨á«® ¡«®ª®¢ ¤«ï § ¯¨á¨
|
||
EXX
|
||
LD HL,FATPAGE.cache
|
||
LD DE,#0800 ;!HARDCODE à §¬¥à ॣ¨® ¢ ¡«®ª¥ Š<>˜ FAT (¡ ©â®¢)
|
||
EXX
|
||
LD C,A
|
||
LD A,B
|
||
|
||
LD B,8 ;!HARDCODE ª®«¨ç¥á⢮ ॣ¨®®¢ ¢ ¡«®ª¥ Š<>˜ FAT
|
||
LD DE,4 ;!HARDCODE à §¬¥à ॣ¨® ¢ ¡«®ª¥ Š<>˜ FAT (ᥪâ®à®¢)
|
||
; ç⮡ ¥ áà âì § £à ¨æë FAT
|
||
.region_loop: SUB A,E
|
||
JR NC,.good_blk
|
||
; ¬ ªá¨¬ «ì® ¤®¯ãáâ¨¬ë© ¡«®ª ¤«ï § ¯¨á¨ ¬¥ìè¥, 祬 å®ç¥âáï
|
||
ADD A,E
|
||
LD E,A
|
||
;
|
||
.good_blk: SRL C
|
||
CALL C,.SAVE_FAT_CACHE_REGION
|
||
EXX
|
||
ADD HL,DE
|
||
EXX
|
||
ADD IX,DE
|
||
JR NC,.no_inc_HL
|
||
INC HL
|
||
.no_inc_HL: DJNZ .region_loop
|
||
RET
|
||
; HL' - €¤à¥á ¢ áâà ¨æ¥ Š<>˜
|
||
; HL:IX - ᬥ饨¥ ¢ãâà¨ à §¤¥« ç «® 㦮£® <20>…ƒˆŽ<CB86>€ ¡«®ª FAT
|
||
.SAVE_FAT_CACHE_REGION:
|
||
PUSH AF
|
||
PUSH DE
|
||
PUSH BC
|
||
PUSH HL
|
||
PUSH IX
|
||
;
|
||
EXX
|
||
PUSH HL
|
||
PUSH HL
|
||
EXX
|
||
LD B,E ; ª®«-¢® ᥪâ®à®¢
|
||
POP DE ; €¤à¥á ¢ áâà ¨æ¥ Š<>˜
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE) ; ®¬¥à ¤¨áª
|
||
LD C,Dss.DRV.Write
|
||
RST ToDSS.DRV
|
||
; HL:IX = Sector + Sector counter
|
||
; DE = Address + (Sector counter * Size sector)
|
||
EXX
|
||
POP HL ; ¤à¥á ¢ áâà ¨æ¥ Š<>˜
|
||
LD DE,#0800 ;!HARDCODE à §¬¥à ॣ¨® ¢ ¡«®ª¥ Š<>˜ FAT (¡ ©â®¢)
|
||
EXX
|
||
;
|
||
POP IX
|
||
POP HL
|
||
POP BC
|
||
POP DE
|
||
POP AF
|
||
RET
|
||
;-----------------------------------------------------------------------
|
||
;
|
||
;[x] fat32 ;!TEST
|
||
;¢å®¤: HL':HL - ®¬¥à ª« áâ¥à
|
||
;¢ë室: HL - ¤à¥á 㦮© 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 ; [x] fat32 á®åà 塞 á«ãç ©, ¥á«¨ READ_FAT_TABLE ¨á¯®àâ¨â
|
||
AND A
|
||
;
|
||
EXX
|
||
EX DE,HL
|
||
LD HL,(CORE_BUFFERS.FS_Buffer.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
|
||
;-----------------------------------------------------------------------
|
||
;¢å®¤: HL - ®¬¥à ª« áâ¥à
|
||
;¢ë室: HL - ¤à¥á 㦮© 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,(CORE_BUFFERS.FS_Buffer.CacheBlock) ; BC - BLOCK FAT IN CASH
|
||
; CP C
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.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 - ®¬¥à ª« áâ¥à
|
||
;¢ë室: HL - ¤à¥á 㦮© 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,(CORE_BUFFERS.FS_Buffer.CacheBlock) ; BC - BLOCK FAT IN CASH
|
||
; CP C
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.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
|
||
;-----------------------------------------------------------------------
|
||
|
||
|
||
|
||
;[x] fat32 ;!TEST
|
||
;CLUSTER_TO_SECTOR:
|
||
; 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,(CORE_BUFFERS.FS_Buffer.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,(CORE_BUFFERS.FS_Buffer.FirstDataSector_L)
|
||
; [x] fat32
|
||
;XOR A
|
||
;
|
||
ADD IX,DE
|
||
; [x] fat32
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.FirstDataSector_H)
|
||
;LD D,A
|
||
;LD E,A
|
||
;
|
||
ADC HL,DE
|
||
POP BC
|
||
RET
|
||
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
; [x] fat32 ;!TEST
|
||
; READ SECTORS OF FILE
|
||
; ¢å®¤: HL:DE - FP (in sectors)
|
||
; IY - FM
|
||
; IX - buffer in RAM
|
||
; B - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï
|
||
BLOCK_READ: LD (READ.PointerOnBuffer),IX
|
||
LD A,(CORE_BUFFERS.FS_Buffer.SectorsPerCluster) ;SECTORS PER CLUSTER
|
||
LD C,A
|
||
PUSH BC ; B - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï, C - SectorsPerCluster
|
||
; HL:DE / A => DE:BC, H=0, L - ®áâ ⮪
|
||
CALL DIV_by_Shifts
|
||
PUSH HL ; ®áâ ⮪ DIV_by_Shifts
|
||
; [x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
PUSH BC ; ¬« ¤è¥¥ á«®¢® ®¬¥à ª« áâ¥à
|
||
PUSH DE ; [x] fat32 áâ à襥 á«®¢® ®¬¥à ª« áâ¥à
|
||
;
|
||
; EXX
|
||
; LD L,(IY+_sFM.FS_REC.FIRST_CLUSTER_H) ; START CLUSTER High
|
||
; LD H,(IY+_sFM.FS_REC.FIRST_CLUSTER_H+1)
|
||
; LD A,L
|
||
; OR H
|
||
; EXX
|
||
; LD L,(IY+_sFM.FS_REC.FIRST_CLUSTER_L) ; START CLUSTER Low
|
||
; LD H,(IY+_sFM.FS_REC.FIRST_CLUSTER_L+1)
|
||
; OR L
|
||
; OR H
|
||
CALL CHECK_FIRST_CLUSTER
|
||
JR Z,.fast_exit_4
|
||
CALL GetSavedCluster
|
||
;HL': HL - ¨§¢¥áâë© ª« áâ¥à ä ©« ¤«ï ®âáçñâ
|
||
;DE : BC - ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (D=D+1, B=B+1)
|
||
;
|
||
PUSH DE ; [x] ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (áâ à襥 á«®¢®)
|
||
JR .enter_loop1
|
||
;
|
||
.fast_exit_5: POP DE
|
||
.fast_exit_4: ; [x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
POP DE ; [x] fat32 áâ à襥 á«®¢® ®¬¥à ª« áâ¥à
|
||
POP BC
|
||
;
|
||
POP BC
|
||
POP DE
|
||
AND A
|
||
RET
|
||
; [x] fat32
|
||
.loop1_big: PUSH BC
|
||
LD BC,0
|
||
.loop1_small: PUSH BC
|
||
CALL READ_FROM_FAT
|
||
POP BC
|
||
JR C,.fast_exit_5 ;RY01
|
||
EX DE,HL
|
||
EXX
|
||
EX DE,HL
|
||
EXX
|
||
.enter_loop1: INC B
|
||
DEC BC ; ‚‘ - ᬥ饨¥ ¢ãâà¨ ä ©« ¢ ª« áâ¥à å (¬« ¤è¥¥ á«®¢®)
|
||
DJNZ .loop1_small
|
||
POP BC ; [x] ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (áâ à襥 á«®¢®)
|
||
INC B
|
||
DEC BC
|
||
DJNZ .loop1_big
|
||
;;;;
|
||
;
|
||
;[x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
POP DE ; [x] fat32 áâ à襥 á«®¢® ®¬¥à ª« áâ¥à
|
||
POP BC ; ¬« ¤è¥¥ á«®¢® ®¬¥à ª« áâ¥à
|
||
CALL SaveGotCluster
|
||
;
|
||
POP DE ; D = 0, E = ®áâ ⮪ DIV_by_Shifts
|
||
POP BC ; B - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï, C - SectorsPerCluster
|
||
; (SP) = (RET)
|
||
; à ¡®â á ®áâ ⪮¬ ®â ¤¥«¥¨ï
|
||
LD A,C
|
||
SUB E
|
||
LD C,A
|
||
CP B ; (SectorsPerCluster - ®áâ ⮪) - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï
|
||
JR C,.skip1 ; SIZE > RESIDUE CLUSTER
|
||
LD C,B ; SIZE < CLUSTER
|
||
.skip1: LD A,B
|
||
SUB C
|
||
LD B,A
|
||
;
|
||
EXX
|
||
PUSH HL ; ®¬¥à ª« áâ¥à áâ àè ï ç áâì
|
||
EXX
|
||
PUSH HL ; ®¬¥à ª« áâ¥à ¬« ¤è ï ç áâì
|
||
PUSH BC ; B = ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤®ç¨âªã, C = (SectorsPerCluster - ®áâ ⮪) «¨¡® ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï
|
||
PUSH DE ; D = 0, E = ®áâ ⮪ DIV_by_Shifts
|
||
CALL CLUSTER_TO_SECTOR
|
||
POP DE ; D = 0, E = ®áâ ⮪ DIV_by_Shifts
|
||
ADD IX,DE
|
||
JR NC,.skip2
|
||
INC HL
|
||
.skip2: LD DE,(READ.PointerOnBuffer)
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE)
|
||
LD B,C
|
||
LD C,Dss.DRV.Read
|
||
RST ToDSS.DRV
|
||
;
|
||
JR C,.Error
|
||
POP BC ; B = ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤®ç¨âªã, C = (SectorsPerCluster - ®áâ ⮪) «¨¡® ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï
|
||
LD HL,(READ.PointerOnBuffer)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.BytesPerSector)
|
||
;!TEST
|
||
LD A,B
|
||
LD B,C
|
||
.loop2: ADD HL,DE
|
||
DJNZ .loop2
|
||
;
|
||
LD (READ.PointerOnBuffer),HL
|
||
POP DE ; ®¬¥à ª« áâ¥à ¬« ¤è ï ç áâì
|
||
EXX
|
||
POP HL ; ®¬¥à ª« áâ¥à áâ àè ï ç áâì
|
||
EXX
|
||
OR A
|
||
RET Z ; ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤®ç¨âªã = 0?
|
||
LD B,A
|
||
;
|
||
.loop4: LD HL,CORE_BUFFERS.FS_Buffer.SectorsPerCluster
|
||
LD A,B
|
||
SUB (HL)
|
||
LD B,A
|
||
LD C,(HL)
|
||
JR NC,.BLOKRD7
|
||
LD B,0
|
||
ADD A,(HL) ;0 AND CF
|
||
LD C,A
|
||
OR A ;CLEAR CF
|
||
RET Z
|
||
;
|
||
.BLOKRD7: EX DE,HL
|
||
PUSH BC
|
||
; HL':HL - ®¬¥à ª« áâ¥à
|
||
CALL READ_FROM_FAT
|
||
POP BC
|
||
JR C,.ECL1 ;RY01
|
||
;
|
||
EXX
|
||
EX DE,HL
|
||
PUSH HL ; ®¬¥à á«¥¤. ª« áâ¥à (áâ à襥 á«®¢®)
|
||
EXX
|
||
EX DE,HL
|
||
PUSH HL ; ®¬¥à á«¥¤. ª« áâ¥à (¬« ¤è¥¥ á«®¢®)
|
||
PUSH BC
|
||
CALL CLUSTER_TO_SECTOR
|
||
LD DE,(READ.PointerOnBuffer)
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE)
|
||
LD B,C
|
||
LD C,Dss.DRV.Read
|
||
RST ToDSS.DRV
|
||
JR C,.Error
|
||
;
|
||
POP BC
|
||
LD HL,(READ.PointerOnBuffer)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.BytesPerSector)
|
||
.loop3: ADD HL,DE
|
||
DEC C
|
||
JR NZ,.loop3
|
||
LD (READ.PointerOnBuffer),HL
|
||
POP DE ; ®¬¥à á«¥¤. ª« áâ¥à (¬« ¤è¥¥ á«®¢®)
|
||
EXX
|
||
POP HL ; ®¬¥à á«¥¤. ª« áâ¥à (áâ à襥 á«®¢®)
|
||
EXX
|
||
JP .loop4
|
||
;
|
||
.Error: POP BC
|
||
POP DE
|
||
POP HL
|
||
;SCF
|
||
RET
|
||
;
|
||
.ECL1: AND A
|
||
RET
|
||
;-----------------------------------------------------------------------
|
||
|
||
; [x] fat32
|
||
; ¢å®¤: IY - FM
|
||
; ¢ë室: HL':HL - first cluster
|
||
; ZF = 0 ¥á«¨ ¯¥à¢®£® ª« áâ¥à ¥â
|
||
CHECK_FIRST_CLUSTER:
|
||
EXX
|
||
LD L,(IY+_sFM.FS_REC.FIRST_CLUSTER_H) ; START CLUSTER High
|
||
LD H,(IY+_sFM.FS_REC.FIRST_CLUSTER_H+1)
|
||
LD A,L
|
||
OR H
|
||
EXX
|
||
LD L,(IY+_sFM.FS_REC.FIRST_CLUSTER_L) ; START CLUSTER
|
||
LD H,(IY+_sFM.FS_REC.FIRST_CLUSTER_L+1)
|
||
OR L
|
||
OR H
|
||
RET
|
||
|
||
; [x] fat32
|
||
; WRITE SECTORS OF FILE
|
||
; ¢å®¤: HL:DE - FP (in sectors)
|
||
; IX - data in RAM
|
||
; IY - FM
|
||
; B - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï § ¯¨á¨
|
||
BLOK_WRITE: LD (READ.PointerOnBuffer),IX
|
||
LD A,(CORE_BUFFERS.FS_Buffer.SectorsPerCluster) ;SECTORS PER CLUSTER
|
||
LD C,A
|
||
PUSH BC ; B - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï, C - SectorsPerCluster
|
||
; HL:DE / A => DE:BC, H=0, L - ®áâ ⮪
|
||
CALL DIV_by_Shifts
|
||
PUSH HL ; ®áâ ⮪ DIV_by_Shifts
|
||
;[x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
PUSH BC ; ¬« ¤è¥¥ á«®¢® ®¬¥à ª« áâ¥à
|
||
PUSH DE ; fat32 áâ à襥 á«®¢® ®¬¥à ª« áâ¥à
|
||
;
|
||
; EXX
|
||
; LD L,(IY+_sFM.FS_REC.FIRST_CLUSTER_H) ; START CLUSTER High
|
||
; LD H,(IY+_sFM.FS_REC.FIRST_CLUSTER_H+1)
|
||
; LD A,L
|
||
; OR H
|
||
; EXX
|
||
; LD L,(IY+_sFM.FS_REC.FIRST_CLUSTER_L) ; START CLUSTER
|
||
; LD H,(IY+_sFM.FS_REC.FIRST_CLUSTER_L+1)
|
||
; OR L
|
||
; OR H
|
||
CALL CHECK_FIRST_CLUSTER
|
||
JR NZ,.FindCluster
|
||
;
|
||
PUSH BC ; ¬« ¤è¥¥ á«®¢® ®¬¥à ª« áâ¥à
|
||
PUSH DE ; fat32 áâ à襥 á«®¢® ®¬¥à ª« áâ¥à
|
||
; [x] fat32
|
||
CALL G_CLUST
|
||
JP C,.Error_6
|
||
;
|
||
LD (IY+_sFM.FS_REC.FIRST_CLUSTER_L),L
|
||
LD (IY+_sFM.FS_REC.FIRST_CLUSTER_L+1),H
|
||
; [x] fat32
|
||
EXX
|
||
LD (IY+_sFM.FS_REC.FIRST_CLUSTER_H),L ; START CLUSTER High
|
||
LD (IY+_sFM.FS_REC.FIRST_CLUSTER_H+1),H
|
||
EXX
|
||
;
|
||
XOR A
|
||
CALL SET_NEW_FREE_CLUSTERS
|
||
;
|
||
CALL WRITE_TO_FAT
|
||
; 02/12/23 ; [ ] ¡ £ á ¨§¡ëâ®ç®© § ¯¨áìî WRITE_FAT_TABLE?
|
||
;PUSH HL
|
||
;CALL WRITE_FAT_TABLE ; ¯®¤ª«. ¡ ªã ª¥è FAT ¨ § ¯¨á âì ¥£® ¤¨áª
|
||
;POP HL
|
||
;
|
||
POP DE ; ¬« ¤è¥¥ á«®¢® ®¬¥à ª« áâ¥à
|
||
POP BC ; fat32 áâ à襥 á«®¢® ®¬¥à ª« áâ¥à
|
||
;
|
||
INC B
|
||
INC D ; fat32
|
||
PUSH DE
|
||
JP .enter_loop
|
||
;[x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
.FindCluster: CALL GetSavedCluster
|
||
;HL': HL - ¨§¢¥áâë© ª« áâ¥à ä ©« ¤«ï ®âáçñâ
|
||
;DE : BC - ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (D=D+1, B=B+1)
|
||
;
|
||
PUSH DE ; ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (áâ à襥 á«®¢®)
|
||
JP .enter_loop
|
||
;
|
||
; [x] fat32
|
||
.loop_big: PUSH BC
|
||
LD BC,0
|
||
.loop: PUSH BC
|
||
CALL READ_FROM_FAT
|
||
JR NC,.next
|
||
; end of chain - get new cluster
|
||
CALL INC_FAT
|
||
JP C,.Error_6
|
||
; [x] ¨§¡ëâ®ç®¥ ®¡à 饨¥ 01/04/2024
|
||
;CALL READ_FROM_FAT
|
||
;
|
||
.next: POP BC
|
||
EX DE,HL
|
||
EXX
|
||
EX DE,HL
|
||
EXX
|
||
.enter_loop: INC B
|
||
DEC BC
|
||
DJNZ .loop
|
||
POP BC ; ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (áâ à襥 á«®¢®)
|
||
INC B
|
||
DEC BC
|
||
DJNZ .loop_big
|
||
;;;;
|
||
;
|
||
;[x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
POP DE
|
||
POP BC
|
||
CALL SaveGotCluster
|
||
;
|
||
POP DE ; D = 0, E = ®áâ ⮪ DIV_by_Shifts
|
||
POP BC ; B - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï, C - SectorsPerCluster
|
||
; (SP) = (RET)
|
||
;
|
||
LD A,C
|
||
SUB E
|
||
LD C,A
|
||
CP B ; (SectorsPerCluster - ®áâ ⮪) - ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï
|
||
JR C,.skip1 ;SIZE > RESIDUE CLUSTER
|
||
LD C,B ;SIZE < CLUSTER
|
||
.skip1: LD A,B
|
||
SUB C
|
||
LD B,A
|
||
;
|
||
EXX
|
||
PUSH HL ; ®¬¥à ª« áâ¥à áâ àè ï ç áâì
|
||
EXX
|
||
PUSH HL ; ®¬¥à ª« áâ¥à ¬« ¤è ï ç áâì
|
||
PUSH BC ; B = ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤®ç¨âªã, C = (SectorsPerCluster - ®áâ ⮪) «¨¡® ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤«ï ç⥨ï
|
||
PUSH DE ; D = 0, E = ®áâ ⮪ DIV_by_Shifts
|
||
CALL CLUSTER_TO_SECTOR
|
||
POP DE ; D = 0, E = ®áâ ⮪ DIV_by_Shifts
|
||
ADD IX,DE
|
||
JR NC,.skip2
|
||
INC HL
|
||
; DOUBLE 1
|
||
.skip2: LD DE,(READ.PointerOnBuffer)
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE)
|
||
LD B,C
|
||
LD C,Dss.DRV.Write
|
||
RST ToDSS.DRV
|
||
;
|
||
LD A,DSS_Error.sys.WRITE_ERROR
|
||
JR C,.Error_3
|
||
POP BC
|
||
LD HL,(READ.PointerOnBuffer)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.BytesPerSector)
|
||
;
|
||
LD A,B
|
||
LD B,C
|
||
.loop2: ADD HL,DE
|
||
DJNZ .loop2
|
||
;
|
||
LD (READ.PointerOnBuffer),HL
|
||
POP DE ; ®¬¥à ª« áâ¥à ¬« ¤è ï ç áâì
|
||
EXX
|
||
POP HL ; ®¬¥à ª« áâ¥à áâ àè ï ç áâì
|
||
EXX
|
||
;
|
||
OR A
|
||
RET Z ; ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤®ç¨âªã = 0?
|
||
LD B,A
|
||
;
|
||
.big_loop: LD HL,CORE_BUFFERS.FS_Buffer.SectorsPerCluster
|
||
LD A,B
|
||
SUB (HL)
|
||
LD B,A
|
||
LD C,(HL)
|
||
JR NC,.WR7
|
||
LD B,0
|
||
ADD A,(HL) ;0 AND CF
|
||
LD C,A
|
||
OR A ;CLEAR CF
|
||
RET Z
|
||
;
|
||
.WR7: EX DE,HL
|
||
PUSH BC
|
||
; HL':HL - ®¬¥à ª« áâ¥à
|
||
CALL READ_FROM_FAT
|
||
JR NC,.WR9
|
||
CALL INC_FAT
|
||
JR C,.ErrorFull
|
||
; [x] ¨§¡ëâ®ç®¥ ®¡à 饨¥ 01/04/2024
|
||
;CALL READ_FROM_FAT
|
||
;
|
||
.WR9: POP BC
|
||
EXX
|
||
EX DE,HL
|
||
PUSH HL ; ®¬¥à á«¥¤. ª« áâ¥à (áâ à襥 á«®¢®)
|
||
EXX
|
||
EX DE,HL
|
||
PUSH HL ; ®¬¥à á«¥¤. ª« áâ¥à (¬« ¤è¥¥ á«®¢®)
|
||
PUSH BC
|
||
CALL CLUSTER_TO_SECTOR
|
||
; DOUBLE 1
|
||
LD DE,(READ.PointerOnBuffer)
|
||
LD A,(CORE_BUFFERS.FS_Buffer.DRIVE)
|
||
LD B,C
|
||
LD C,Dss.DRV.Write
|
||
RST ToDSS.DRV
|
||
LD A,DSS_Error.sys.WRITE_ERROR
|
||
JR C,.Error_3
|
||
POP BC
|
||
LD HL,(READ.PointerOnBuffer)
|
||
LD DE,(CORE_BUFFERS.FS_Buffer.BytesPerSector)
|
||
.loop3: ADD HL,DE
|
||
DEC C
|
||
JR NZ,.loop3
|
||
LD (READ.PointerOnBuffer),HL
|
||
POP DE ; ®¬¥à á«¥¤. ª« áâ¥à (¬« ¤è¥¥ á«®¢®)
|
||
EXX
|
||
POP HL ; ®¬¥à á«¥¤. ª« áâ¥à (áâ à襥 á«®¢®)
|
||
EXX
|
||
JP .big_loop
|
||
;
|
||
.Error_6: POP BC
|
||
POP BC
|
||
POP BC
|
||
.Error_3: POP BC ;[x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
POP BC
|
||
POP DE
|
||
;LD A,DSS_Error.sys.WRITE_ERROR
|
||
;SCF
|
||
RET
|
||
;
|
||
.ErrorFull: POP BC
|
||
LD A,DSS_Error.sys.DISK_FULL
|
||
;SCF
|
||
RET
|
||
|
||
;
|
||
;[x] fat32
|
||
;[x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
; ‚室: DE - ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (áâ à襥 á«®¢®)
|
||
; BC - ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (¬« ¤è¥¥ á«®¢®)
|
||
; HL - ¯¥à¢ë© ª« áâ¥à ä ©« (¬« ¤è¥¥ á«®¢®)
|
||
; HL' - ¯¥à¢ë© ª« áâ¥à ä ©« (áâ à襥 á«®¢®)
|
||
; ‚ë室: HL - ¨§¢¥áâë© ª« áâ¥à ä ©« ¤«ï ®âáçñâ (¬« ¤è¥¥ á«®¢®)
|
||
; HL' - ¨§¢¥áâë© ª« áâ¥à ä ©« ¤«ï ®âáçñâ (áâ à襥 á«®¢®)
|
||
; DE - ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (áâ à襥 á«®¢®, D=D+1)
|
||
; BC - ®á⠢襥áï ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å (¬« ¤è¥¥ á«®¢®, B=B+1)
|
||
; ¥ ¯®àâ¨â HL, HL' ¨ DE:BC ¥á«¨ ®¯â¨¬¨§ æ¨ï ¥ áà ¡®â «
|
||
GetSavedCluster:
|
||
XOR A
|
||
CP (IY+_sFM.OptimizedClusters)
|
||
JR Z,.noOptimization_0
|
||
;
|
||
PUSH DE
|
||
PUSH HL ; ¯¥à¢ë© ª« áâ¥à ä ©« (¬« ¤è¥¥ á«®¢®)
|
||
; ᬥ饨¥ ¢ ä ©«¥ ¢ ª« áâ¥à å
|
||
EX DE,HL
|
||
LD E,(IY+_sFM.KnownOffset_H)
|
||
LD D,(IY+_sFM.KnownOffset_H+1)
|
||
; ¯à®¢¥àª áâ à襣® á«®¢
|
||
AND A
|
||
SBC HL,DE
|
||
JR C,.noOptimization_2
|
||
;
|
||
PUSH BC
|
||
EX DE,HL
|
||
LD H,B
|
||
LD L,C
|
||
LD C,(IY+_sFM.KnownOffset_L)
|
||
LD B,(IY+_sFM.KnownOffset_L+1)
|
||
; ¯à®¢¥àª ¬« ¤è¥£® á«®¢
|
||
SBC HL,BC
|
||
LD BC,0
|
||
EX DE,HL
|
||
SBC HL,BC
|
||
JR C,.noOptimization_3
|
||
EX DE,HL
|
||
LD B,H
|
||
LD C,L
|
||
; DE:BC ®¢®¥ ᬥ饨¥ ®â ¨§¢¥á⮣® ª« áâ¥à ä ©« (¢ ª« áâ¥à å)
|
||
;
|
||
LD L,(IY+_sFM.KnownCluster_L)
|
||
LD H,(IY+_sFM.KnownCluster_L+1)
|
||
EXX
|
||
LD L,(IY+_sFM.KnownCluster_H)
|
||
LD H,(IY+_sFM.KnownCluster_H+1)
|
||
EXX
|
||
; ¡ « á á⥪
|
||
POP AF
|
||
POP AF
|
||
POP AF
|
||
; ¤«ï 横« DJNZ
|
||
INC B
|
||
INC D
|
||
RET
|
||
;
|
||
.noOptimization_3:
|
||
POP BC
|
||
.noOptimization_2:
|
||
POP HL
|
||
.noOptimization_1:
|
||
POP DE
|
||
.noOptimization_0:
|
||
INC B
|
||
INC D
|
||
RET
|
||
|
||
;[x] fat32
|
||
;[x] GET/SAVE CLUSTER NUMBER BEFORE/AFTER READ/WRITE
|
||
SaveGotCluster: LD A,C
|
||
OR B
|
||
OR E
|
||
OR D
|
||
RET Z
|
||
;
|
||
LD (IY+_sFM.KnownOffset_L),C
|
||
LD (IY+_sFM.KnownOffset_L+1),B
|
||
LD (IY+_sFM.KnownOffset_H),E
|
||
LD (IY+_sFM.KnownOffset_H+1),D
|
||
;
|
||
LD (IY+_sFM.KnownCluster_L),L
|
||
LD (IY+_sFM.KnownCluster_L+1),H
|
||
EXX
|
||
LD (IY+_sFM.KnownCluster_H),L
|
||
LD (IY+_sFM.KnownCluster_H+1),H
|
||
EXX
|
||
;
|
||
LD A,1
|
||
LD (IY+_sFM.OptimizedClusters),A
|
||
RET
|
||
////////////////////////////////////////////////////////////////////////
|
||
|
||
;----------------------------------------------------------------------;
|
||
; ‚室: HL - ¤à¥á ªã¤ ¯¨á âì
|
||
; ‚ë室: HL - ¤à¥á á«¥¤ãî騩 ¯®á«¥ § ¯¨á ®£®
|
||
WRITE_DATE_TIME_TO_DIRECTORY_RECORD:
|
||
; [ ] VFAT date
|
||
PUSH HL
|
||
CALL SYSTIME ; 㧠âì ⥪. ¤ âã ¨ ¢à¥¬ï
|
||
CALL MK_TIME ; § ª®¤¨à®¢ âì ¢à¥¬ï/¤ âã
|
||
POP HL
|
||
; FAT_DIRECTORY_RECORD.TIME
|
||
LD (HL),E ; de=¢à¥¬ï
|
||
INC HL
|
||
LD (HL),D
|
||
INC HL
|
||
; FAT_DIRECTORY_RECORD.DATE
|
||
LD (HL),C ; ¤¥ì
|
||
INC HL
|
||
LD (HL),B ; ¬¥áïæ
|
||
INC HL
|
||
RET
|
||
;----------------------------------------------------------------------;
|
||
|
||
|
||
;----------------------------------------------------------------------;
|
||
;<3B> áçñâ á¬¥é¥¨ï ¢ ᥪâ®à å ;!HARDCODE sector size
|
||
GET_OFFSET_IN_SECTORS:
|
||
LD H,0 ;!HARDCODE max file size = 8 gb
|
||
LD E,(IY+_sFM.F_POSITION+1)
|
||
LD D,(IY+_sFM.F_POSITION+2)
|
||
LD L,(IY+_sFM.F_POSITION+3)
|
||
LD A,E
|
||
AND #01
|
||
LD B,A
|
||
LD C,(IY+_sFM.F_POSITION)
|
||
RR L
|
||
RR D
|
||
RR E
|
||
;HL:DE FP (in sectors)
|
||
;BC FP residue (in bytes)
|
||
;
|
||
OR C
|
||
RET
|
||
;----------------------------------------------------------------------;
|
||
|
||
FAT_MODULE_SIZE EQU $-FAT_MODULE_START
|
||
;//MODULE: FAT
|
||
;[END] |