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Length: 22272 (0x5700)
Types: TextFile
Names: »QDISKTAB.MAC«
└─⟦72577d508⟧ Bits:30003297 Diverse BIOS typer til RC703
└─⟦this⟧ »QDISKTAB.MAC«
SUBTTL DISK DEFINITION TABLES
page
;===============================================
;= SECTOR TRANSLATION TALES =
;===============================================
TRAN0: DB 1,7,13,19 ; 8" SS 128 B/S
DB 25,5,11,17 ;
DB 23,3,9,15 ; IBM std.
DB 21,2,8,14 ; skeew factor 6
DB 20,26,6,12 ;
DB 18,24,4,10 ;
DB 16,22 ;
TRAN8: DB 1,5,9,13 ; 8" DD 512 B/S
DB 2,6,10,14 ;
DB 3,7,11,15 ; skeew factor 4
DB 4,8,12 ;
TRAN16: DB 1,3,5,7 ; 5.25" DD 512 B/S
DB 9,2,4,6 ;
DB 8,10 ; skeew factor 2
TRAN24: DB 1,2,3,4 ; 8" DD 255 B/S
DB 5,6,7,8 ;
DB 9,10,11,12 ; no translation done
DB 13,14,15,16 ;
DB 17,18,19,20 ;
DB 21,22,23,24 ;
DB 25,26 ;
page
IFDEF MINI ; IF MINI SYSTEM THEN
;================================================
;= DISK PARAMETER BLOCKS FOR 5.25" FLOPPY DISKS =
;================================================
;************** DS/DD 512 B/S ************** UNUSED
;DPB0: DW 40 ; SEC: CP/M SECTORS PR. TRACK
; DB 3 ; BSH: BLS (DATA ALLOCATION BLOCK SIZE) SHIFT FACTOR
; DB 7 ; BLM: BSH AND BLM DETERMINES BLS=1024 BYTES
; DB 0 ; EXM: EXTENT MASK
; DW 389 ; DSM: STORAGE CAPACITY(TRK*SEC*SECLEN/BLS)
; DW 63 ; DRM: DIRECTORY ENTRIES-1. OCCUPIES 64*32/1024 BLOCKS.
; DB 192,0 ; AL0,AL1: ONE BIT FOR EACH RESERVED DIRECTORY BLOCK.
; DW 16 ; CKS: SIZE OF DIRECTORY CHECK VECTOR(64/4).
; DW 2 ; OFF: NUMBER OF RESERVED TRACKS AT DISK START
; TFj ********* PARTNERDRIVE ***********************
DPB0: DW 128 ;
DB 4 ;
DB 15 ;
DB 0 ;
DW 599 ;
DW 511 ;
DB 255,0 ;
DW 80 ;
DW 2 ;
;************** DD 512 B/S ************** track 0 NO skeew
DPB8: DW 80 ; SEC
DB 4 ; BSH
DB 15 ; BLM: BLS=2048 BYTES
DB 0 ; EXM
DW 389 ; DSM
DW 255 ; DRM
DB 11110000b,0 ; AL0,AL1
DW 64 ; CKS
DW 2 ; OFF
;************** DD 512 B/S ************** data area
DPB16: DW 80 ; SEC
DB 4 ; BSH
DB 15 ; BLM: bls = 2048 bytes
DB 0 ; EXM
DW 389 ; DSM
DW 255 ; DRM
DB 11110000b,0 ; AL0,AL1
DW 64 ; CKS
DW 2 ; OFF
;************ 8" DD 512 B/S ************ MAXI data area
DPB24: DW 120 ; SECTORS
DB 4 ; BSH
DB 15 ; BLM
DB 0 ; EXM
DW 561 ; DSM
DW 127 ; DRM
DB 192,0 ; AL0,AL1
DW 32 ; CKS
DW 2 ; OFF
page
ELSE ; ELSE
page
; MAXI
;========================================================
;= DISK PARAMETER BLOCKS FOR 8" FLOPPY DISKS =
;========================================================
;*** SS 128 B/S *** IMB std.
DPB0: DW 26 ; TOTAL NUMBER OF SECTORS PR. TRACK
DB 3 ; BSH: DATA ALLOCATION BLOCK SHIFT FACTOR
DB 7 ; BLM:
DB 0 ; EXM: EXTENT MASK
DW 242 ; DSM: TOTAL STORAGE CAPACITY
DW 63 ; DRM: TOTAL NUMBER OF DIRECTORY ENTRIES
DB 192,0 ; AL0,AL1: RESERVED DIRECTORY BLOCKS
DW 16 ; CKS: SIZE OF DIRECTORY CHECK VECTOR
DW 2 ; OFF: NUMBER OF RESERVED TRACKS AT DISK START
;*** 8" DD 512 B/S *** data area
DPB8: DW 120 ; TOTAL NUMBER OF SECTORS PR. TRACK
DB 4 ; BSH
DB 15 ; BLM
DB 0 ; EXM
DW 561 ; DSM
DW 127 ; DRM
DB 192,0 ; AL0,AL1
DW 32 ; CKS
DW 2 ; OFF
;*** 8" SS 128 B/S (TRACK0 SIDE 0) ***
DPB16: DW 26 ; TOTAL NUMBER OF SECTORS PR. TRACK
DB 3 ; BSH
DB 7 ; BLM
DB 0 ; EXM
DW 242 ; DSM
DW 63 ; DRM
DB 192,0 ; AL0,AL1
DW 16 ; CKS
DW 0 ; OFF
;*** 8" DD 256 B/S (TRACK0 SIDE 1) ***
DPB24: DW 104 ; TOTAL NUMBER OF SECTORS PR. TRACK
DB 4 ; BSH
DB 15 ; BLM
DB 0 ; EXM
DW 486 ; DSM
DW 127 ; DRM
DB 192,0 ; AL0,AL1
DW 32 ; CKS
DW 0 ; OFF
ENDIF ; END IF MINI ELSE MAXI
PAGE
;==============================================================================
;= DISK PARAMETER BLOCKS FOR HARD DISK TYPE =
;==============================================================================
; *** HARD DISK 1,1MB (MAXI) UNIT
DPB32: DW 384 ; CP/M SECTS PER TRACK
DB 4 ; BSH (2K BLOCK)
DB 15 ; BLM
DB 0 ; EXM
DW 561 ; DSM (DISK CAPACITY = MAXI FLOPPY
; 449= 62 TRACKS 561= 77 TRACKS)
DW 127 ; DRM (DIR ENTRIES)
DB 11000000B,0 ; AL0,AL1 (RESERVED DIR BLOCKS)
DW 0 ; CKS (0 FOR FIXED MEDIA)
DW 3 ; OFF (OFFSET TO TRACK 0)
; *** HARD DISK 0,8MB (MINI) UNIT (SAME SPACE RESERVED AS FOR MAXI UNIT)
DPB40: DW 384 ; SECT/TRACK
DB 4 ; BSH
DB 15 ; BLM
DB 0 ; EXM
DW 389 ; DSM (DISK CAPACITY = MINI FLOPPY quad density)
DW 255 ; DRM
DB 11110000B,0 ; AL0,AL1
DW 0 ; CKS
DW 3 ; OFF
; *** HARD DISK 2MB UNIT
DPB48: DW 384 ; SECT/TRACK
DB 5 ; BSH (4K BLOCK 2**5 RECORDS)
DB 31 ; BLM
DB 1 ; EXM
DW 491 ; DSM ( CAP = 4K*(491+1) = 1968KBYTES )
DW 511 ; DRM ( DIR ENTRIES -1 )
DB 11110000B,0 ; AL0,AL1 (4BLKS = 16K RESERVED)
DW 0 ; CKS
DW 27 + 0 ; OFF ( OFFSET = TRACK0 + MINI/MAXI)
; *** HARD DISK 4MB UNIT
DPB56: DW 384 ; SECTS/TRACK
DB 6 ; BSH (8K BLOCK 2**6)
DB 63 ; BLM
DB 3 ; EXM
DW 491 ; DSM ( CAP = 8K*(497+1) = 3984KBYTES )
DW 511 ; DRM
DB 11000000B,0 ; AL0,AL1
DW 0 ; CKS
DW 27 + 0 ; OFF
; *** HARD DISK 8MB UNIT
DPB64: DW 384 ; SECTS/TRACK
DB 7 ; BSH (16K BLOCK 2**7)
DB 127 ; BLM
DB 7 ; EXM
DW 494 ; DSM ( CAP = 16K*(497+1) = 7968KBYTES )
DW 511 ; DRM
DB 10000000B,0 ; AL0,AL1
DW 0 ; CKS
DW 27 ; OFF ( FIXED AT 27 )
;==========================================================================
;= TRACK OFFSET TABLE =
;= ENTRY = DISKNO * 2 =
;==========================================================================
TRKOFF: DW 2 ; FLOPPY DISK A OFFSET
DW 2 ; - - B -
; DW 3 ; HARD DISK C -
; DW -1 ; - - D -
DW 2 ; TFj
DW 2 ; TFj
DW -1 ; - - E OFFSET IS FILLED DURING INIT.
DW -1 ; - - F DO.
DW -1 ; - - G DO.
DW -1 ; FILLS ONE TO MUCH
page
IFDEF MINI ; IF MINI VERSION THEN
;================================================
;= FLOPPY SYSTEM PARAMETERS FOR 5,25" FLOPPY =
;================================================
;************** SS 512 B/S ************** UNSED
;FSPA00:DW DPB0 ; DISK PARAMETER BLOCK
; DB 8 ; CP/M RECORDS PR. BLS BLOCK
; DW 40 ; CP/M SECTORS PR. TRACK
; DB 3 ; SECTOR MASK
; DB 3 ; SECTOR SHIFT COUNT
; DW TRAN24 ; SECTOR TRANSLATION TABLE (no translation)
; DB 255 ; DATA LENGTH
; DB 0 ; DISK TYPE (0:=FLP, FF:=HARD)
; DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
; TFj ********* PARTNERDRIVE *********************
FSPA00: DW DPB0 ;
DB 16 ;
DW 128 ;
DB 7 ;
DB 4 ;
DW TRAN24 ;
DB 255 ;
DB 0 ;
DS 5 ;
;************** DD 256 B/S *************** track 0
FSPA08: DW DPB8 ; DISK PARAMETER BLOCK
DB 16 ; CP/M RECORDS PR. BLS BLOCK
DW 80 ; CP/M SECTORS PR. TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW TRAN24 ; SECTOR TRANSLATION TABLE (no translation)
DB 255 ; DATA LENGTH
DB 0 ; DISK TYPE (0:=FLP, FF:=HARD)
DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
;************** DD 512 B/S **************
FSPA16: DW DPB16 ; DISK PARAMETER BLOCK
DB 16 ; CP/M RECORDS PR. BLS BLOCK
DW 80 ; CP/M SECTORS PR. TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW TRAN16 ; SECTOR TRANSLATION TABLE
DB 255 ; DATA LENGTH
DB 0 ; DISK TYPE (0:=FLP, FF:=HARD)
DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
;************** 8" DD 512 B/S ************
FSPA24: DW DPB24 ; DISK PARAMETER BLOCK
DB 16 ; CP/M RECORDS PR. BLS BLOCK
DW 120 ; CP/M SECTORS PR. TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW TRAN8 ; SECTOR TRANSLATION TABLE
DB 255 ; DATA LENGTH
db 0 ; DISK TYPE (0 := FPL, FF := HARD)
DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
page
ELSE ; ELSE
; MAXI VERSION
PAGE
;========================================================
;= FLOPPY SYSTEM PARAMETERS =
;========================================================
;*** 8" SS 128 B/S ***
FSPA00: DW DPB0 ; DISK PARAM BLOCK
DB 8 ; CP/M RECORDS PR. BLOCK
DW 26 ; CP/M SECTORS PR. TRACK
DB 0 ; SECTOR MASK
DB 1 ; SECTOR SHIFT COUNT
DW TRAN0 ; SECTOR TRANSLATION TABLE
DB 128 ; DATA LENGTH
DB 00H ; DISK TYPE (0:=FLP, FF:=HARD)
DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
;*** 8" DD 512 B/S ***
FSPA08: DW DPB8 ; DISK PARAM BLOCK
DB 16 ; CP/M RECORDS PR. BLOCK
DW 120 ; CP/M SECTORS PR. TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW TRAN8 ; SECTOR TRANSLATION TABLE
DB 255 ; DATA LENGTH
DB 00H ; DISK TYPE (0:=FLP, FF:=HARD)
DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
PAGE
;*** 8" SS 128 B/S (TRACK 0 SIDE 0) ***
FSPA16: DW DPB0 ; DISK PARAM BLOCK
DB 8 ; CP/M RECORDS PR. BLOCK
DW 26 ; CP/M SECTORS PR. TRACK
DB 0 ; SECTOR MASK
DB 1 ; SECTOR SHIFT COUNT
DW TRAN24 ; SECTOR TRANSLATION TABLE (no translation)
DB 128 ; DATA LENGTH
DB 00H ; DISK TYPE (0:=FLP, FF:=HARD)
DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
;*** 8" DD 256 B/S (TRACK 0 SIDE 1) ***
FSPA24: DW DPB24 ; DISK PARAM BLOCK
DB 8 ; CP/M RECORDS PR. BLOCK
DW 104 ; CP/M SECTORS PR. TRACK
DB 1 ; SECTOR MASK
DB 2 ; SECTOR SHIFT COUNT
DW TRAN24 ; SECTOR TRANSLATION TABLE (no translation)
DB 255 ; DATA LENGTH
DB 00H ; DISK TYPE (0:=FLP, FF:=HARD)
DS 5 ; FILLER TO OBTAIN 16 BYTE LENGTH
ENDIF ; END IF MINI ELSE MAXI VERSION;
page
;==============================================================================
;= DISK SYSTEM PARAMETERS FOR HARD DISK =
;==============================================================================
;*** 1 MB LOGICAL HARD DISK UNIT ***
FSPA32: DW DPB32 ; DISK PARAM BLOCK
DB 16 ; CP/M RECORDS PER BLOCK
DW 384 ; CP/M SECTORS PER TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW 0 ; SECTOR TRANSLATION TABEL(NOT USED)
DB 0 ; DATA LENGTH (NOT USED)
DB 0FFH ; DISK TYPE (0:=FLP,FF:=HARD DSK)
DS 5 ; FILLER TO OBTAIN 16 BYTES LENGTH
;*** 0,3 MB LOGICAL HARD DISK UNIT ***
FSPA40: DW DPB40 ; DISK PARAM BLOCK
DB 16 ; CP/M RECORDS PER BLOCK
DW 384 ; CP/M SECTORS PER TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW 0 ; SECTOR TRANSLATION TABLE
DB 0 ; DATA LENGTH (NOT USED)
DB 0FFH ; DISK TYPE (0:=FLP,FF:=HARD DSK)
DS 5 ; FILLER TO OBTAIN 16 BYTES LENGTH
;*** 2 MB LOGICAL HARD DISK UNIT ***
FSPA48: DW DPB48 ; DISK PARAM BLOCK
DB 32 ; CP/M RECORDS PER BLOCK
DW 384 ; CP/M SECTORS PER TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW 0 ; SECTOR TRANSLATION TABEL
DB 0 ; DATA LENGTH (NOT USED)
DB 0FFH ; DISK TYPE (0:=FLP, FF:= HARD DSK)
DS 5 ; FILLER TO OBTAIN 16 BYTES LENGTH
;*** 4 MB LOGICAL HARD DISK UNIT ***
FSPA56: DW DPB56 ; DISK PARAM BLOCK
DB 64 ; CP/M RECORDS PER BLOCK
DW 384 ; CP/M SECTORS PER TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW 0 ; SECTOR TRANSLATION TABEL
DB 0 ; DATA LENGTH (NOT USED)
DB 0FFH ; DISK TYPE (0:=FLP, FF:= HARD DSK)
DS 5 ; FILLER TO OBTAIN 16 BYTES LENGTH
;*** 8 MB LOGICAL HARD DISK UNIT ***
FSPA64: DW DPB64 ; DISK PARAM BLOCK
DB 128 ; CP/M RECORDS PER BLOCK
DW 384 ; CP/M SECTORS PER TRACK
DB 3 ; SECTOR MASK
DB 3 ; SECTOR SHIFT COUNT
DW 0 ; SECTOR TRANSLATION TABEL
DB 0 ; DATA LENGTH (NOT USED)
DB 0FFH ; DISK TYPE (0:=FLP, FF:=HARD DSK)
DS 5 ; FILLER TO OBTAIN 16 BYTES LENGTH
page
IFDEF MINI ; IF MINI VERSION THEN
;================================================
;= FLOPPY FORMAT PARAMETERS FOR 5,25" FLOPPY =
;================================================
;************** SS 512 B/S ************** track 0 side 0
; DB 10 ; PHYSICAL SECTORS PR. TRACK
;FDF1: DW 511 ; DMA COUNT
; DB 64 ; MF
; DB 2 ; N
; DB 10 ; END OF TRACK
; DB 10 ; GAP LENGTH
; DB 80 ; TRACKS
; TFj ********* PARTNERDRIVE ************
DB 16 ;
FDF1: DW 1023 ;
DB 64 ;
DB 3 ;
DB 8 ;
DB 27 ;
DB 77 ;
;************** DD 256 B/S **************
DB 20 ; PHYSICAL SECTORS PR. TRACK
FDF2: DW 511 ; DMA COUNT
DB 64 ; MF
DB 2 ; N
DB 10 ; END OF TRACK
DB 10 ; GAP LENGTH
DB 80 ; TRACKS
;************** DD 512 B/S **************
DB 20 ; PHYSICAL SECTORS PR. TRACK
FDF3: DW 511 ; DMA COUNT
DB 64 ; MF
DB 2 ; N
DB 10 ; END OF TRACK
DB 10 ; GAP LENGTH
DB 80 ; TRACKS
;************** 8" DD 512 B/S ***********
DB 30 ; PHYSICAL SECTORS PR. TRACK
FDF4: DW 511 ; DMA COUNT
DB 64 ; MF
DB 2 ; N
DB 15 ; END OF TRACK
DB 27 ; GAP LENGTH
DB 77 ; TRACKS
page
ELSE ; ELSE
; MAXI VERSION
PAGE
;==============================================================================
;= FLOPPY DISK FORMAT TABLES =
;==============================================================================
;*** 8" SS 128 B/S ***
DB 26 ; PHYSICAL SECTORS PR. TRACK
FDF1: DW 127 ; DMA COUNT
DB 0 ; MF
DB 0 ; N
DB 26 ; END OF TRACK
DB 7 ; GAP LENGTH
DB 77 ; TRACKS
;*** 8" DD 512 B/S ***
DB 30 ; PHYSICAL SECTORS PR. TRACK
FDF2: DW 511 ; DMA COUNT
DB 64 ; MF
DB 2 ; N
DB 15 ; END OF TRACK
DB 27 ; GAP LENGTH
DB 77 ; TRACKS
;*** 8" SS 128 B/S (TRACK 0 SIDE 0) ***
DB 26 ; PHYSICAL SECTORS PR. TRACK
FDF3: DW 127 ; DMA COUNT
DB 0 ; MF
DB 0 ; N
DB 26 ; END OF TRACK
DB 7 ; GAP LENGTH
DB 77 ; TRACKS
;*** 8" DD 256 B/S (TRACK 0 SIDE 1) ***
DB 52 ; PHYSICAL SECTORS PR. TRACK
FDF4: DW 255 ; DMA COUNT
DB 64 ; MF
DB 1 ; N
DB 26 ; END OF TRACK
DB 14 ; GAP LENGTH
DB 77 ; TRACKS
ENDIF ; END IF MINI ELSE MAXI VERSION;
;==============================================================================
;= DISK FORMAT TABLES FOR HARD DISK =
;==============================================================================
;*** 1 MB LOGICAL HARD DISK UNIT ***
DB 16 ; SECTORS PER DISK PAGE
FDF5: DW 511 ; DMA TRANSFER COUNT
DW 24 ; TRACK OCCUPIED BY UNIT
DB 00H ; STEP RATE
DB 20H ; SECTOR SIZE (00H:=256,20H:=512,60H:=128)
DB 00H ; WRITE PRECOMPRESSED
;*** 0,3 MB LOGICAL HARD DISK UNIT ***
DB 16 ; SECTORS PER DISK PAGE
FDF6: DW 511 ; DMA TRANSFER COUNT
DW 24 ; TRACKS OCCUPIED BY UNIT
DB 00H ; STEP RATE
DB 20H ; SECTOR SIZE (512 BYTES)
DB 00H ; WRITE PRECOMPRESSED
;*** 2 MB LOGICAL HARD DISK UNIT ***
DB 16 ; SECTORS PER DISK PAGE
FDF7: DW 511 ; DMA TRANSFER COUNT
DW 41 ; TRACKS OCCUPIED BY UNIT
DB 00H ; STEP RATE
DB 20H ; SECTOR SIZE (512 BYTES)
DB 00H ; WRITE PRECOMPRESSED
;*** 4 MB LOGICAL HARD DISK UNIT ***
DB 16 ; SECTORS PER DISK PAGE
FDF8: DW 511 ; DMA TRANSFER COUNT
DW 83 ; TRACKS OCCUPIES BY UNIT
DB 00H ; STEP RATE
DB 20H ; SECTOR SIZE (512 BYTES)
DB 00H ; WRITE PRECOMPRESSED
;*** 8 MB LOGICAL HARD DISK UNIT ***
DB 16 ; SECTORS PER DISK PAGE
FDF9: DW 511 ; DMA TRANSFER COUNT
DW 166 ; TRACKS OCCUPIED BY UNIT
DB 00H ; STEP RATE
DB 20H ; SECTOR SIZE (512 BYTES)
DB 00H ; WRITE PRECOMPRESSED
PAGE
;==============================================================================
;= DISK PARAMETER HEADERS =
;==============================================================================
;*** DRIVE 0 ***
DPBASE: DW 0 ; TRANSLATION TABLE
DW 0 ; BDOS SCRATCH PAD
DW 0 ; BDOS SCRATCH PAD
DW 0 ; BDOS SCRATCH PAD
DW DIRBF ; 128 BYTE AREA FOR DIRECTORY OPEARTIONS
DW DPB8 ; DISK PARAMETER BLOCK
DW CHK0 ; AREA USED TO CHECK FOR DISK CHANGE
DW ALL0 ; BDOS DISK STORAGE ALLOCATION INFORMATION AREA
;*** DRIVE 1 FLOPPY DRIVE ***
DW 0 ; TRANSLATION TABLE
DW 0 ; BDOS SCRATCH PAD
DW 0 ; - - -
DW 0 ; - - -
DW DIRBF ; 128 BYTE AREA FOR DIRECTORY OPERATIONS
DW DPB8 ; DISK PARAMETER BLOCK
DW CHK1 ; AREA USED TO CHECK FOR DISK CHANGE
DW ALL1 ; BDOS DISK STORAGE ALLOCATION INFORMATION AREA
;*** DRIVE 2 HARD DISK (FLOPPY) DRIVE
DW 0 ; TRANS
DW 0 ; SCRATCH
DW 0 ; -
DW 0 ; -
DW DIRBF ; 128 BYTE DIRECTORY AREA
; DW DPB40 ; DISK PARAM BLOCK (INIT=MAXI DRIVE)
DW DPB0 ; TFj
; DW 0 ; CHECK VECTOR (NOT USED -FIXED MEDIA)
DW CHK2 ; TFj
DW ALL2 ; TFj
; DW ALVHD ; ALLOCATION VECTOR
;*** DRIVE 3 HARD DISK (2,4 OR 8 MB UNIT)
DW 0 ; TRANS
DW 0 ; SCRATCH
DW 0 ; -
DW 0 ; -
DW DIRBF ; DIRECTORY
; DW DPB64 ; DISK PARAM BLOCK (INIT= 8MB UNIT)
DW DPB0 ;
; DW 0 ; CHECK VECTOR
DW CHK3 ; TFj
DW ALL3 ; TFj
; DW ALVHD+71 ; ALLWAYS FIXED POSITION
;*** DRIVE 4 HARD DISK (2 OR 4 MB UNIT)
DW 0 ; TRNS
DW 0 ; SCRTCH
DW 0 ;
DW 0 ;
DW DIRBF ; DIRECT.
DW DPB56 ; DPB (INIT = 4MB UNIT)
DW 0 ; CHK
DW ALVHD+71+70 ; ALLOC. BASE +HD UNIT1 +HD UNIT 2
;*** DRIVE 5 HARD DISK (2 OR 4 MB UNIT)
DW 0 ;
DW 0 ;
DW 0 ;
DW 0 ;
DW DIRBF ; DIR
DW DPB56 ; DPB (INIT = 4MB UNIT)
DW 0 ; CHK
DW ALVHD+71+70+70 ; ALL.VECTOR BASE+HDU1+HDU2+HDU3
;*** DRIVE 6 HARD DISK (ONLY 2 MB UNIT POSSIBLE)
DW 0 ;
DW 0 ;
DW 0 ;
DW 0 ;
DW DIRBF ;
DW DPB48 ; DPB (INIT = 2 MB UNIT)
DW 0 ; CHK
DW ALVHD+71+70+70+70 ; HDU1+HDU2+HDU3+HDU4
page
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