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330 lines
8.7 KiB
330 lines
8.7 KiB
;======= 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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; Partition A. SIMH HDSK0, Slice 0
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IF DRV_E
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DEFB 'HDSK0:0 ','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 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 (1024 trks)
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;
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;
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DPB50: DEFW 64 ; Sctrs/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 HSIZ0-1 ; Disk Size-1
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DEFW 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check Size
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DEFW 16 ; Trk Offset
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ENDIF
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;.....
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; Partition B. SIMH HDSK0, Slice 1
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IF DRV_F
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DEFB 'HDSK0:1 ','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 2048 ; # of blocks in Second Partition (1024 trks)
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;
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;
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DPB51: 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 HSIZ1-1 ; Disk Size-1
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DEFW 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 1056 ; Track offset
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ENDIF
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;.....
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; Partition C. SIMH HDSK0, Slice 2
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IF DRV_G
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DEFB 'HDSK0:2 ','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 2048 ; # of blocks in third Partition (1024 tracks)
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;
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;
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DPB52: 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 HSIZ2-1 ; Disk Size-1
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DEFW 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc0,1
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DEFW 0 ; Check size
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DEFW 2096 ; Track offset
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ENDIF
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;.....
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; Partition D. SIMH HDSK0, Slice 3
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IF DRV_H
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DEFB 'HDSK0:3 ','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 2048 ; # of blocks in Fourth Partition (1024 tracks)
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;
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;
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DPB53: 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 HSIZ3-1 ; Disk Size-1
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DEFW 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 3136 ; Track offset
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ENDIF
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;.....
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; Partition A. SIMH HDSK1, Slice 0
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IF DRV_F
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DEFB 'HDSK1:0 ','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 per track
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DEFB 0 ; Physical tracks/side (No Meaning in HD)
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HSIZ4 EQU 2048 ; # of blocks in first Partition (1024 trks)
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;
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;
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DPB54: DEFW 64 ; Sctrs/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 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check Size
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DEFW 16 ; Trk Offset
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ENDIF
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;.....
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; Partition B. SIMH HDSK1, Slice 1
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IF DRV_G
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DEFB 'HDSK1:1 ','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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HSIZ5 EQU 2048 ; # of blocks in Second Partition (1024 trks)
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;
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;
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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 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 1056 ; Track offset
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ENDIF
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;.....
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; Partition C. SIMH HDSK1, Slice 2
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IF DRV_H
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DEFB 'HDSK1:2 ','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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HSIZ6 EQU 2048 ; # of blocks in third Partition (1024 tracks)
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;
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;
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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 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc0,1
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DEFW 0 ; Check size
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DEFW 2096 ; Track offset
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ENDIF
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;.....
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; Partition D. SIMH HDSK1, Slice 3
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IF DRV_I
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DEFB 'HDSK1:3 ','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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HSIZ7 EQU 2048 ; # of blocks in Fourth Partition (1024 tracks)
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;
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;
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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 511 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 3136 ; 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 'ROM ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC2K ; 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 464 ; Number of blocks in Fourth Logical Drive
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HSIZ8 EQU HB_ROMBLKS
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DPB58: DEFW 64 ; Scts/Trk
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DEFB 4 ; Blk Shf Fctr
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DEFB 15 ; Block Mask
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IF ((HSIZ8 - 1) < 256)
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DEFB 1 ; Extent Mask
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ELSE
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DEFB 0 ; Extent Mask
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ENDIF
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DEFW HSIZ8-1 ; Disk Size-1
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DEFW 255 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 0 ; Track offset
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ENDIF
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IF DRV_O
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DEFB 'RAM ',' '+80H ; Id - 10 bytes
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DEFB FIXDSK ; Format type byte 0
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DEFB SPEED8+SEC512+ALC2K ; 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 192 ; Number of blocks in Fourth Logical Drive
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HSIZ9 EQU HB_RAMBLKS
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DPB59: DEFW 64 ; Scts/Trk
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DEFB 4 ; Blk Shf Fctr
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DEFB 15 ; Block Mask
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IF ((HSIZ9 - 1) < 256)
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DEFB 1 ; Extent Mask
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ELSE
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DEFB 0 ; Extent Mask
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ENDIF
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DEFW HSIZ9-1 ; Disk Size-1
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DEFW 255 ; Dir Max
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DEFB 0F0H,0 ; Alloc 0,1
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DEFW 0 ; Check size
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DEFW 0 ; 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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