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https://github.com/wwarthen/RomWBW.git
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317 lines
10 KiB
Plaintext
317 lines
10 KiB
Plaintext
;======= Hard Disk Parameter Blocks =======
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; The B/P BIOS DPB's contain prefix information that provide data on the
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; logical format. This table contains only DPB Data on Hard Disk Partitions.
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; See DPB.LIB for definitions of bit equates used in all DPB files.
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; NOTE: For simplicity, the code always assumes a logical 16 512-byte sectors
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; per track for SCSI interface. Translate the actual 17 or 18 sectors
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; to an increased track count of 16 sector tracks.
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;.....
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; Format Type Byte 0 (Fixed Disk Subset)
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; ------------------
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; D D D D D D D D
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; 7 6 5 4 3 2 1 0
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; | | | | | +-+-+----- Disk Size 000 = Fixed Disk, remainder unused
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; +-+-+-+-+----------- (unused)
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; All DPBs use the equate: FIXDSK EQU 00000000B from DPB.LIB
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; Format Type Byte 1 (Fixed Disk Subset)
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; ------------------
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; D D D D D D D D
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; 7 6 5 4 3 2 1 0
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; | | | | | +-+-+----- Sector Size: 010 = 512 bytes assumed in driver
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; | | +-+-+----------- Allocation Size: 000=1K, 001=2K, 010=4K, 011=8K, 100=16K
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; | +----------------- (reserved)
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; +------------------- 1 = High Speed. (0 Not Used)
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; Information in this byte is not used in the SCSI driver, but is simply
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; maintained for future use and compatibility with other DPB access routines.
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; NOTE: No Skew Table is needed since Hard Disk Format is locked
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;.....
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; These are some of the capacities and configurations used with different
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; drives and controllers:
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; Shugart Adaptec Seagate
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; 1610-3 /------- ACB-4000a ----------\ SCSI
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; ST-212 SQ-312 SQ-312A SQ-306 ST-225 ST125N
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; ------ ------ ------- ------ ------ ------
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; Size (MB) A=2.6 A=2.7 A=4.0 A=2.0 A=4.0 A=4.0
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; B=2.6 B=2.7 B=7.1 B=3.5 B=7.1 B=8.0
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; C=2.6 C=2.7 - - C=11.1 C=8.1
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; D=2.6 D=2.8 - - - -
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;.....
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; Partition A. Conner CP-2045 Bower 4-Partition.
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IF DRV_E
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DEFB 'CP-2045 ','A'+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor (== Only the +/- sign used)
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical # sectors as defined in DPB
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; even though real layout is 17/18 physical
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; sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ0 EQU 2048 ; # of blocks in first Partition (498 trks)
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; SQ-312 SQ312A SQ-306 ST-225 ST125N
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; ------ ------ ------ ------ ------
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DPB50: DEFW 64 ; Sctrs/Trk 64 64 64 64 64
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DEFB 5 ; Blk Shf Fctr 5 5 5 5 5
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DEFB 31 ; Block Mask 31 31 31 31 31
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DEFB 1 ; Extent Mask 1 1 1 1 1
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DEFW HSIZ0-1 ; Disk Size-1 683 995 495 995 995
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DEFW 511 ; Dir Max 767 767 767 767 767
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DEFB 0F0H,0 ; Alloc 0,1 0FC 0FC 0FC 0FC 0FC
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DEFW 0 ; Check Size 0 0 0 0 0
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DEFW 2096 ; Trk Offset 2 2 2 2 2
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ENDIF
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;.....
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; Partition B. Conner CP-2045, Bower 4-Partition.
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IF DRV_F
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DEFB 'CP-2045 ','B'+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ1 EQU 2500 ; # of blocks in Second Partition (1250 trks)
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; SQ-312 SQ312A SQ-306 ST-225 ST125N
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; ------ ------ ------ ------ ------
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DPB51: DEFW 64 ; Scts/Trk 64 64 64 64 64
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DEFB 5 ; Blk Shf Fctr 5 5 5 5 5
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DEFB 31 ; Block Mask 31 31 31 31 31
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DEFB 1 ; Extent Mask 1 1 1 1 1
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DEFW HSIZ1-1 ; Disk Size-1 687 1766 875 1766 1599
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DEFW 1023 ; Dir Max 767 1023 767 1023 1023
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DEFB 0FFH,0 ; Alloc 0,1 0FC 0FF 0FC 0FF 0FF
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DEFW 0 ; Check size 0 0 0 0 0
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DEFW 500 ; Track offset 344 500 250 500 500
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ENDIF
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;.....
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; Partition C. Conner CP-2045, Bower 4-Partition.
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IF DRV_G
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DEFB 'CP-2045 ','C'+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ2 EQU 2500 ; # of blocks in third Partition (1250 tracks)
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; SQ-312 SQ312A SQ-306 ST-225 ST125N
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; ------ ------ ------ ------ ------
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DPB52: DEFW 64 ; Scts/Trk 64 - - 64 64
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DEFB 5 ; Blk Shf Fctr 5 - - 5 5
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DEFB 31 ; Block Mask 31 - - 31 31
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DEFB 1 ; Extent Mask 1 - - 1 1
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DEFW HSIZ2-1 ; Disk Size-1 687 - - 2766 2639
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DEFW 1023 ; Dir Max 767 - - 1023 1023
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DEFB 0FFH,0 ; Alloc0,1 0FC - - 0FF 0FF
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DEFW 0 ; Check size 0 - - 0 0
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DEFW 1750 ; Track offset 688 - - 1384 1300
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ENDIF
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;.....
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; Partition D. Conner CP-2045, Bower 4-Partition.
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IF DRV_H
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DEFB 'CP-2045 ','D'+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ3 EQU 1912 ; # of blocks in Fourth Partition (956 tracks)
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; SQ-312 SQ312A SQ-306 ST-225 ST125N
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; ------ ------ ------ ------ ------
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DPB53: DEFW 64 ; Scts/Trk 64 - - - -
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DEFB 5 ; Blk Shf Fctr 5 - - - -
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DEFB 31 ; Block Mask 31 - - - -
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DEFB 1 ; Extent Mask 1 - - - -
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DEFW HSIZ3-1 ; Disk Size-1 687 (701) - - - -
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DEFW 1023 ; Dir Max 767 - - - -
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DEFB 0FFH,0 ; Alloc 0,1 0FC - - - -
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DEFW 0 ; Check size 0 - - - -
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DEFW 3000 ; Track offset 1032 - - - -
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ENDIF
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;---- The rest are dummies for the present. Fill with your needs ----
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IF DRV_I
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DEFB ' ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ4 EQU 2762 ; Number of blocks in Fourth Logical Drive
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DPB54: DEFW 64 ; Scts/Trk
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DEFB 5 ; Blk Shf Fctr
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DEFB 31 ; Block Mask
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DEFB 1 ; Extent Mask
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DEFW HSIZ4-1 ; Disk Size-1
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DEFW 1023 ; Dir Max
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DEFB 0FFH,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 2 ; Track offset
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ENDIF
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IF DRV_J
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DEFB ' ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ5 EQU 2762 ; Number of blocks in Fourth Logical Drive
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DPB55: DEFW 64 ; Scts/Trk
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DEFB 5 ; Blk Shf Fctr
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DEFB 31 ; Block Mask
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DEFB 1 ; Extent Mask
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DEFW HSIZ5-1 ; Disk Size-1
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DEFW 1023 ; Dir Max
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DEFB 0FFH,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 2 ; Track offset
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ENDIF
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IF DRV_K
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DEFB ' ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ6 EQU 2762 ; Number of blocks in Fourth Logical Drive
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DPB56: DEFW 64 ; Scts/Trk
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DEFB 5 ; Blk Shf Fctr
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DEFB 31 ; Block Mask
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DEFB 1 ; Extent Mask
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DEFW HSIZ6-1 ; Disk Size-1
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DEFW 1023 ; Dir Max
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DEFB 0FFH,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 2 ; Track offset
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ENDIF
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IF DRV_L
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DEFB ' ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ7 EQU 2762 ; Number of blocks in Fourth Logical Drive
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DPB57: DEFW 64 ; Scts/Trk
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DEFB 5 ; Blk Shf Fctr
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DEFB 31 ; Block Mask
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DEFB 1 ; Extent Mask
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DEFW HSIZ7-1 ; Disk Size-1
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DEFW 1023 ; Dir Max
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DEFB 0FFH,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 2 ; Track offset
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ENDIF
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;<<< --- Drive M is used for RAM Drive --- >>>
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IF DRV_N
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DEFB ' ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ8 EQU 2762 ; Number of blocks in Fourth Logical Drive
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DPB58: DEFW 64 ; Scts/Trk
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DEFB 5 ; Blk Shf Fctr
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DEFB 31 ; Block Mask
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DEFB 1 ; Extent Mask
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DEFW HSIZ8-1 ; Disk Size-1
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DEFW 1023 ; Dir Max
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DEFB 0FFH,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 2 ; Track offset
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ENDIF
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IF DRV_O
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DEFB ' ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ9 EQU 2762 ; Number of blocks in Fourth Logical Drive
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DPB59: DEFW 64 ; Scts/Trk
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DEFB 5 ; Blk Shf Fctr
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DEFB 31 ; Block Mask
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DEFB 1 ; Extent Mask
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DEFW HSIZ9-1 ; Disk Size-1
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DEFW 1023 ; Dir Max
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DEFB 0FFH,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 2 ; Track offset
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ENDIF
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IF DRV_P
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DEFB ' ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC4K ; Format type byte 1
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DEFB -2 ; Skew factor
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DEFB 1 ; Starting sector number
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DEFB 16 ; Logical Sectors per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ10 EQU 2762 ; Number of blocks in Fourth Logical Drive
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DPB60: DEFW 64 ; Scts/Trk
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DEFB 5 ; Blk Shf Fctr
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DEFB 31 ; Block Mask
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DEFB 1 ; Extent Mask
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DEFW HSIZ10-1 ; Disk Size-1
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DEFW 1023 ; Dir Max
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DEFB 0FFH,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 2 ; Track offset
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ENDIF
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;----------- End of Hard Disk DPBs -------------
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