mirror of
https://github.com/Tolik-Trek/Estex-DSS.git
synced 2026-06-15 17:31:47 +03:00
288 lines
6.7 KiB
NASM
288 lines
6.7 KiB
NASM
;[BEGIN]
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;//MODULE: Shared AUTHOR: Denis Parinov
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;//CREATE: A LONG TIME AGO :)
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;---------------------------------------------------------------
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;Rev Date Name Description
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;R01 17-04-2023 BAO „®¡ ¢«¥ ¯à®æ¥¤ãà INITDVC_RET_DRIVE ¨ ¨§¬¥¥ INTDISK ¤«ï ¯®¤¤¥à¦ª¨ à¥áª ¤à ©¢®¢
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;---------------------------------------------------------------
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; DISK DRIVER SPECIFICATION
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; !FIXIT ¥ª®à४â ï!
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;---------------------------------------------
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; COMMAND 00h (INITIALIZATION)
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;
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; INPUT: A - DRIVE LETTER
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; IX - ENVIRONMENT
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; RETURN: A - AMOUNT DRIVE SUPPORT
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; HL - LENGTH DRIVER
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;---------------------------------------------
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; COMMAND 01h (OPEN)
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;
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; INPUT: A - DRIVE
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;
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;---------------------------------------------
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; COMMAND 02h (CLOSE)
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;
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; INPUT: A - DRIVE
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; RETURN: A -
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;---------------------------------------------
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; COMMAND 03h (MEDIA CHECK)
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;
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; INPUT: A - DRIVE
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; RETURN: A - 00h - OLD DISK, 0FFh - NEW DISK
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;---------------------------------------------
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; COMMAND 04h (GET BPB)
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;
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; INPUT: HL - ADDRESS
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; A - DRIVE
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;---------------------------------------------
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; COMMAND 05h (INPUT)
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;
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; INPUT: IX:DE - ABSOLUTE SECTOR
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; HL - MEMORY ADDRESS
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; B - SECTORS COUNT
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; A - DRIVE
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;---------------------------------------------
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; COMMAND 06h (OUTPUT)
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;
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; INPUT: IX:DE - ABSOLUTE SECTOR
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; HL - MEMORY ADDRESS
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; B - SECTORS COUNT
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; A - DRIVE
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;---------------------------------------------
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; COMMAND 07h (REMOVABLE)
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;
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; INPUT: A - DRIVE
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; RETURN: A = 0 - REMOVABLE
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; A = 1 - NONREMOVABLE
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;---------------------------------------------
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; COMMAND 08h (GENERIC IOCTL)
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;
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; INPUT: A - DRIVE
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; B - SUBCOMMAND
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; DE - MAGIC NUMBER (55AAh)
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; SUBCOMMAND
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;----------------------
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; 00 - GET DEVICE PARAMETERS
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; 01 - READ TRACK
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; 02 - TEST TRACK
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; 80 - SET DEVICE PARAMETERS
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; 81 - WRITE TRACK
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; 82 - FORMAT TRACK
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;---------------------------------------------
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;
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; ERRORS:
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; 0 - NO ERRORS
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; 1 - BAD COMMAND
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; 2 - BAD DRIVE NUMBER
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; 3 - UNKNOW FORMAT
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; 4 - NOT READY
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; 5 - SEEK ERROR
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; 6 - SECTOR NOT FOUND
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; 7 - CRC ERROR
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; 8 - WRITE PROTECT
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; 9 - READ ERROR
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; 10 - WRITE ERROR
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; 11 - FAILURE
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; 12 - BUSY (DEVICE OPENED)
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; 13 - RESERVED
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;INTDISK PUSH HL
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; PUSH BC
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; LD HL,DEVICE
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; INC A
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;INTD001 DEC A
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; JP Z,YEP
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; LD C,(HL)
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; INC C
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; INC HL
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; INC HL
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; INC HL
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; JP NZ,INTD001
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; POP BC
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; POP HL
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; LD A,2
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; SCF
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; RET
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;YEP LD A,(HL)
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; INC HL
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; LD C,(HL)
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; INC HL
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; LD H,(HL)
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; LD L,C
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; POP BC
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; EX (SP),HL
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; RET
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;-----------------------------------------------------------
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; <20>à®áª ¨à®¢ âì á¨á⥬ã FDD/HDD ¤¥¢ ©áë ¨ RAM-¤¨áª¨
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;-----------------------------------------------------------
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INITDVC: XOR A
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LD (DRV_PAGE.LDRIVE),A ; á¡à. ï祩ªã
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LD HL,DEVICE
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LD (PDEVICE),HL ; ¢®ááâ. ï祩ªã
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; ‡ ç¨á⪠⠡«¨æ. <20>¥®¡ï§ ⥫ì®, ® ¬ «® «¨ çñ ¡ã¤¥â ¤ «ìè¥... ;[ ]
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LD HL,DEVICE
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LD (HL),#FF
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LD DE,DEVICE+1
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LD BC,DEVICE.Size + LOGDRV.Size + RAMDTBL.Size - 1
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LDIR
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; FDD ¤¥¢ ©áë
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CALL FDD_DRV.Init ; 㧠âì ç¨á«® FDD-¤¥¢ ©á®¢
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LD DE,FDD_DRV.API_TABLE ; ¤à¥á ®¡à ¡®â稪 ⥪. ¤¥¢ ©á
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CALL MAKEDVC ; ¨¨æ. â ¡«¨æã ¯¥à¥å®¤®¢
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; IDE ¤¥¢ ©áë
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.if_old: CALL IDE_DRV.Init ; ¥á«¨ áâ à⥠¢¥àá¨ï BIOS ¥ ¯®¤å®¤¨â, â® £à㧨âìáï ¬®¦® ⮫쪮 á ¤¨áª¥âë, ¤«ï í⮣® âãâ § ¬¥ ª®¤ XOR A : RET
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LD DE,IDE_DRV.API_TABLE
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CALL MAKEDVC
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; RAM-¤¨áª¨
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CALL RAMDSK_DRV.Init
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LD DE,RAMDSK_DRV.API_TABLE
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CALL MAKEDVC
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XOR A
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RET
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; ˆ¨æ¨¨à®¢ âì â ¡«¨æã ¯¥à¥å®¤®¢ ¤¥¢ ©á .
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; ¢å®¤: de= ¤à¥á ®¡à ¡®â稪 ¤¥¢ ©á
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; a=ç¨á«® ¤¥¢ ©á®¢ (0=¥â)
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MAKEDVC: LD C,A
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LD HL,DRV_PAGE.LDRIVE ; ï祩ª ®¬¥à ¯®á«. ¤¨áª
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ADD A,(HL)
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LD (HL),A
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;!TEST ;[ ] ®¯â¨¬¨§¨à®¢ âì ¡ë«® «¥ì
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CP DSS_MAX_DRIVES_AMOUNT+1
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JR C,1F
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LD (HL),DSS_MAX_DRIVES_AMOUNT
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SUB DSS_MAX_DRIVES_AMOUNT
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NEG
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ADD C
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JP 2F
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;
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1: LD A,C
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OR A
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RET Z ; ¥â ¤¥¢ ©á®¢
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2: LD C,0 ; á¡à.
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LD HL,(PDEVICE) ; ⥪. ¯®«®¦. ¢ â ¡«¨æ¥
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.loop: LD (HL),C ; ®¬¥à «®£.¤à ©¢ í⮣® ãáâனáâ¢
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INC HL
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LD (HL),E ; de= ¤à¥á ®¡à ¡®â稪
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INC HL
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LD (HL),D
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INC HL
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INC C ; ++®¬¥à ¤à ©¢
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DEC A
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JR NZ,.loop
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LD (PDEVICE),HL
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DEC A
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LD (HL),A
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RET
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;-------------------------------------------------
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; RST 18h. ‚¥ªâ®à ¤¨áª®¢ëå ãáâனáâ¢
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; ¢å®¤: a=®¬¥à ãáâனá⢠(0-25)
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;-------------------------------------------------
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INTDISK:
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;R01
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CP #FF
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JR NZ,.noNeedRescan
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CP C
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JR Z,ReScanDRV
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;
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.noNeedRescan:
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PUSH HL
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PUSH BC
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_CALC_DEVICE_ENTRY DEVICE
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LD A,(HL)
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CP #FF
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JR Z,NODEV
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INC HL
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LD C,(HL)
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INC HL
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LD H,(HL)
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LD L,C
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POP BC
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EX (SP),HL
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RET
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NODEV: POP BC
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POP HL
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LD A,BIOS.Error.BadNumber
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SCF
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RET
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PDEVICE DW DEVICE
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; DEVICE: BLOCK DSS_MAX_DRIVES_AMOUNT * .TBL_Entry,#FF
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; .Size: DB #FF
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; .TBL_Entry EQU 3
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FLOPPY EQU #0001
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FIXED EQU #0002
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CDROM EQU #0004
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NETWORK EQU #0008
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;DISKS: DB 27 ;LENGTH DISK INFO
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; DW FLOPPY ;DISK TYPE
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; DB 2,"A:" ;DISK NAME
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; DB 11,"NO NAME "
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; DB 8,"FAT12 "
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; DB #00 ;PHISICAL DRIVE NUMBER
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;
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; DB 27 ;LENGTH DISK INFO
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; DW FLOPPY ;DISK TYPE
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; DB 2,"B:" ;DISK NAME
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; DB 11,"NO NAME "
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; DB 8,"FAT12 "
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; DB #01 ;PHISICAL DRIVE NUMBER
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;
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; DB 27 ;LENGTH DISK INFO
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; DW FIXED ;DISK TYPE
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; DB 2,"C:" ;DISK NAME
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; DB 11,"NO NAME "
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; DB 8,"FAT16 "
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; DB #80 ;PHISICAL DRIVE NUMBER
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;
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; DB #00 ;END OF TABLE
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;-----------------------------------------------------------------------
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;R01
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; INITDVC_RET_DRIVE:
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; CALL INITDVC
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; LD A,(DRV_PAGE.LDRIVE)
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; AND A
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; RET
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;
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////////////////////////////////////////////////////////////////////////
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// NEW RESCAN //
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////////////////////////////////////////////////////////////////////////
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INCLUDE 'ReScanDRV.ASM'
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////////////////////////////////////////////////////////////////////////
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;DEVICE DB #00
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; DW FDDRIVE ; FDD A
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; DB #01
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; DW FDDRIVE ; FDD B
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; DB #00
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; DW HDDRIVE ; HDD C
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; DB #01
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; DW HDDRIVE ; HDD D
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; DB #02
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; DW HDDRIVE ; HDD E
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; DB #03
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; DW HDDRIVE ; HDD F
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; DB #04
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; DW HDDRIVE ; HDD G
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; DB #05
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; DW HDDRIVE ; HDD H
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; DB #06
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; DW HDDRIVE ; HDD I
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; DB #07
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; DW HDDRIVE ; HDD J
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; DB #FF |