mirror of
https://github.com/Tolik-Trek/Estex-DSS.git
synced 2026-06-15 09:21:47 +03:00
139 lines
2.3 KiB
NASM
139 lines
2.3 KiB
NASM
;/////////////////////////////////////////////////////////////////////
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; [ ] ®¢ ï ¯®¤äãªæ¨ï á ¡¨â®¬ 7 ¢ ॣ. €
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; ‚®§¢à é ¥â ¨ä®à¬ æ¨î ®¡ ®¡é¥¬ ¨ ᢮¡®¤®¬ ¯à®áâà á⢥ ¤¨áª®¢®£®
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; ãáâனá⢠.
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;
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; ¢å®¤: A - ®¬¥à ¤¨áª (0=A,1=B .. 25=Z. #FF-⥪ã騩)
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; <09>ਠA bit7 = 1:
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; HL - ¡ãä¥à (256 ¡ ©â®¢) ¤«ï à áè¨à¥ëå ¤ ëå:
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; B != 0 - áç¨â âì ᢮¡®¤®¥ ¬¥áâ®
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; ;
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; à §¬¥à ¯®«ï - 1 ¡ ©â
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; ;
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; à §¬¥à ¯®«ï - 1 ¡ ©â
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; ;
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; à §¬¥à ¯®«ï - 1 ¡ ©â
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; Œ¥âª ¤¨áª
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; à §¬¥à ¯®«ï - 1 ¡ ©â
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; ‡ १¥à¢¨à®¢ ®...
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; ;
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; A xor #80 - ®¬¥à ¤¨áª
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;
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; ¢ë室: A - à §¬¥à ª« áâ¥à ¢ ᥪâ®à å, ¥á«¨ CF=0
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; HL - ®¡é¥¥ ª®«-¢® ª« áâ¥à®¢
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; DE - ᢮¡®¤ëå ª« áâ¥à®¢
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; BC - à §¬¥à ᥪâ®à ¢ ¡ ©â å
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; A - ª®¤ ®è¨¡ª¨, ¥á«¨ CF=1
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;/////////////////////////////////////////////////////////////////////
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; [ ] 22/11/23 ¯®¤äãªæ¨ï á ¤®¯.¨ä®©
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MACRO _mCOPY_LOOP
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LD C,A
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LD B,0
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LD (DE),A
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INC DE
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LDIR
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; .loop:
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; LD (HL),A
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; INC DE
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; INC HL
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; LD A,(DE)
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; DJNZ .loop
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ENDM
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;
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DISKINF:; [ ] 22/11/23 ¯®¤äãªæ¨ï á ¤®¯.¨ä®©
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LD C,B
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LD B,1
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;
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CP #80
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JR C,.CustomDisk
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CP #FF
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JR Z,.CurrentDisk
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; more info
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LD B,C
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PUSH HL
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AND %0111'1111
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CALL .CustomDisk
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JR C,.error
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;
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EX (SP),HL
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PUSH AF
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PUSH DE
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PUSH BC
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;;;;
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;
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EX DE,HL
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LD HL,CORE_BUFFERS.BootSector.ID_FAT
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LD A,8 ;!HARDCODE _sBOOT_SEC.ID_FAT.length
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_mCOPY_LOOP
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;
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LD HL,CORE_BUFFERS.BootSector.BPB_SERIAL_NUMBER
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LD A,4 ;!HARDCODE _sBOOT_SEC.BPB_SERIAL_NUMBER
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_mCOPY_LOOP
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;
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LD HL,CORE_BUFFERS.BootSector.BPB_LABEL
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LD A,11 ;!HARDCODE _sBOOT_SEC.BPB_LABEL
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_mCOPY_LOOP
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;
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XOR A
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LD (DE),A
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;;;;
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POP BC
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POP DE
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POP AF
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.error: POP HL
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RET
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;
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;CP #FF ; !FIXIT WorkDirectory
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;!TEST Current Dir
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;JR Z,CURRDS ;R06
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.CurrentDisk:
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LD A,(CurrentPath)
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SUB 'A'
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LD HL,FatBuffer.DRIVE
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CP (HL)
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JR Z,.CheckFreeSpace
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;
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.CustomDisk:
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PUSH BC
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CALL CHNDISK ;R06
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POP BC
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RET C ;R06
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;
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.CheckFreeSpace:
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;
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XOR A
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OR B
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CALL NZ,.CURRDS
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;
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;
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.FRESP2:
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LD D,B
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LD E,C
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LD HL,(FAT_Max_Cluster)
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DEC HL
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LD BC,(CORE_BUFFERS.BootSector.B_P_S)
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LD A,(CORE_BUFFERS.BootSector.S_P_C)
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AND A
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RET
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;
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.CURRDS:
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LD HL,2
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LD BC,0
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.FRESP: PUSH BC
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CALL R_F_FAT
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POP BC
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CP DSS_Error.sys.DISK_FULL
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RET Z
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LD A,E
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OR D
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JR NZ,.SKIC
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INC BC
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.SKIC: INC HL
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JP .FRESP
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; |