;======= Hard Disk Parameter Blocks =======	************************
;   - Retro-Brew boards w/ RomWBW HBIOS -	** Hardware Dependant **
;						************************
; 1.4 - 04 Sep 16 - Mods for HBIOS V 2.8 pre 5                       LWN+WW
; 1.3 - 20 Jan 14 - Initial N8VEM test release			     LWN
; 1.2 - 17 Nov 07 - Initial LabZ80 test release			     LWN
; 1.1 - 27 Feb 93 - General Release.				     HFB
; 0.0 - 12 Jun 91 - Initial Test Release.			     HFB
;:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

; The B/P BIOS DPB's contain prefix information that provide data on the
; logical format.  This table contains only DPB Data on Hard Disk Partitions.
; See DPB.LIB for definitions of bit equates used in all DPB files.

; NOTE: For simplicity, BPBIOS always assumes a logical 16 512-byte 
;	sectors (64 128 byte records) per track for hard disks.  
;	One must therefore translate the actual number of sectors 
;	to a track count of 16 sectors per track.

;.....
; Format Type Byte 0  (Fixed Disk Subset)
; ------------------
; D D D D D D D D
; 7 6 5 4 3 2 1 0
;  \ \ \ \ \ \_\_\____ Disk Size 000 = Fixed Disk
;   \_\_\_\_\_________ (unused)

; Format Type Byte is set to  FIXDSK  EQU  00000000B.  See DPB.LIB for 
;        def'ns.

; Format Type Byte 1  (Fixed Disk Subset)
; ------------------
; D D D D D D D D
; 7 6 5 4 3 2 1 0
;  \ \ \ \ \ \_\_\____ Sector Size
;   \ \ \ \ \		000=128, 001=256, 010=512, 011=1024
;    \ \ \_\_\________ Allocation Size
;     \ \		000=1K, 001=2K, 010=4K, 011=8K, 100=16K
;      \ \____________ Reserved
;	\_____________ Speed Normal 5.25" (0), 8" or HD Floppy (1)

; Information in this byte is not used in the driver, but is simply
; maintained for future use and compatibility with other DPB access 
; applications such as BPCNFG.  Refer to DPB.LIB for bit definitions.

; NOTE: No Skew Table needed since Hard Disk Format is locked w/No Skew 

;.....
; Currently, BPBIOS supports 2 memory drive devices and 3 physical hard 
;	drive like devices.  BPBIOS can support seven but unfortunately
;	BPCNFG only supports 3 hard drive like devices and the source 
;	code is not available, so menu 4 is meaningless.  Devices 
;	include IDE Hard drives (16 bit), USB and SD card drives.  CF 
;	cards can connect to both 8 and 16 bit IDE interfaces.  Note
;	that the RAM and ROM drives are handled separately.  A default 
;	system configuration consists of two Floppy drives, an IDE drive 
;	and an SD drive.  The IDE drive is allocated eight 8 MB slices 
;	while the SD drive will have four 8 MB slices.  For SIMH, the 
;	IDE drive is replaced by SIMH HDSK0 with eight slices and the SD 
;	drive with SIMH HDSK1 with 4 slices.  The configuration
;	and/or mix of drives can be altered at any time by using BPCNFG
;	Manually or by editting the appropriate .CNF file.  The SD card
;	could replaced by the USB for example,
;
;	Starting with ver 2.8 of HBIOS, devices are discovered at boot
;	time and assigned device numbers.  Since devices are tested in
;	a certain order, the device numbers are somewhat predictably 
;	assigned.  Memory drives are discovered first.  IDE drives are 
;	discovered next so that IDE Hard drives including CF cards are 
;	assigned device 2 and device 3 if a slave drive is supported by
;	the interface.  Next comes the SD drive and is assigned device 3
;	or 4 depending on the whether there is an ide slave drive.
;	USB drive is assigned device 4 or 5.  For SIMH HDSK0 is device 0
;	and HDSK1 is device 1.  Memory drives are now handled as LBA
;	devices, ie like hard drives.
;
; The following non-memory drive capacities and configurations used for 
; the SIMH, SD and IDE drives: Track geometry is 16 512 byte sectors.
; A slice is exactly 64 tracks, with 1 of the 64 tracks as a system
; track.  There are 1024 directory entries per slice. If all partitions
; are not physically present, the missing partitions can be disabled in
; the BPBCNFG configuration file or by hand.  Note that HBIOS uses LBA, 
; Logical Block Addressing, for non-floppy drives.
;
; For SBC V1,2, ZETA, MARK IV and N8, the following non-memory partitions 
;   are available: 
;
; These are the capacities and configuration used for the IDE drives:
;
;	partition	Size	Blocks	Block 	Offset in
;			MByte		Size	logical tracks
;====================================================================
;	   C		 8	 2044	4096	128+(1024*0)+2 = 130
;	   D		 8	 2044	4096	128+(1024*1)+2 = 1154
;	   E		 8	 2044	4096	128+(1024*2)+2 = 2178
;	   F		 8	 2044	4096	128+(1024*3)+2 = 3202
;	   G		 8	 2044	4096	128+(1024*4)+2 = 4226
;	   H		 8	 2044	4096	128+(1024*5)+2 = 5250
;	   I		 8	 2044	4096	128+(1024*6)+2 = 6274
;	   J		 8	 2044	4096	128+(1024*7)+2 = 7298
;
; These are capacities and configurations used for SD card:
;
;	partition	Size	Blocks	Block 	Offset
;			MByte		Size	logical tracks
;====================================================================
;	   K		 8	 2044	4096	128+(1024*0)+2 = 130
;	   L		 8	 2044	4096	128+(1024*1)+2 = 1154
;	   M		 8	 2044	4096	128+(1024*2)+2 = 2178
;	   N		 8	 2044	4096	128+(1024*3)+2 = 3202
;
; RAM drive is partition A while ROM drive is partition B. 
;
; For example, a typical Memory drive configuration is: 
;
;	partition	Size	Blocks	Block 	Offset
;			MByte		Size	logical tracks
;====================================================================
;	   B		 384K	  192	2048	0
;
; For SIMH the IDE and SD drives are replaced by HDSK0 and HDSK1. The 
;   follow non-RAM partitions are available:
;
; Simh HDSK0 drive configuration is identical to the IDE drive.
;
; Simh HDSK1 drive configuration is identical to the SD drive.
;
; Memory disks are drives A and B
; Hard drives (IDE, SD AND USB) are drives E TO L and M to P
; Floppies are drives O and P
;
;====================================================================
;
;.....
; Partition A.  RAM Disk
; Retro-Brew HBIOS RAM Disk Format assuming 64k for System & HBIOS banks

	DEFB	'Ram Drive',' '+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC2K ; Format type byte 1
	DEFB	-1		; Skew factor (== Only the +/- sign used)
	DEFB	1		; Starting sector number
	DEFB	16		; Physical # sectors/trk (16*512=8k per 'track')
	DEFB	0		; Physical tracks/side (No Meaning in HD)

MSIZR	EQU	(32*16)		; Maximum blocks in RAM drive (assume 1MB)

DPBRAM:	DEFW	64		; Records/Track (16 sectors*4 records/sector)
	DEFB	4		; Block Shift Factor (2k per block)
	DEFB	0FH		; Block Mask
	DEFB	1		; Extent Mask (updated at boot by HB_INIT)
	DEFW	MSIZR-1		; Disk Blocks (updated at boot by HB_INIT)
	DEFW	255		; Dir Max-1	4 blocks
	DEFB	0F0H,0		; Alloc 0,1
	DEFW	0000		; Check Size
	DEFW	0000		; Trk Offset from beginning of Ram Bank base
;
;.....
; Partition B.  ROM Disk
; Retro-Brew HBIOS ROM Disk Format assuming 64k for System & HBIOS banks

	DEFB	'ROM Drive',' '+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
;	DEFB	SPEED8+SEC128+ALC2K ; Format type byte 1
	DEFB	SPEED8+SEC512+ALC2K ; Format type byte 1
	DEFB	-1		; Skew factor (== Only the +/- sign used)
;	DEFB	0		; Starting sector number
	DEFB	1		; Starting sector number
;	DEFB	32		; Physical # sectors/trk (32=4k per 'track')
	DEFB	16		; Physical # sectors/trk (32=4k per 'track')
	DEFB	0		; Physical tracks/side (No Meaning in HD)

MSIZO	EQU	(32*16)		; Maximum blocks in ROM drive (assume 1MB)

DPBROM:	DEFW	64		; Sectors/Track
	DEFB	4		; Block Shift Factor (2k per block)
	DEFB	0FH		; Block Mask
	DEFB	1		; Extent Mask (updated at boot by HB_INIT)
	DEFW	MSIZO-1		; Disk Blocks (updated at boot by HB_INIT)
	DEFW	255		; Dir Max-1	4 blocks
	DEFB	0F0H,0		; Alloc 0,1
	DEFW	0000		; Check Size
	DEFW	0000		; Trk Offset from beginning of Ram Bank base
;
;.....
; Partition C.  HBIOS Disk 0, Slice 0

	  IF  DRV_C
	DEFB	'HBDSK0:0 ','C'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor (== Only the +/- sign used)
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical sectors are defined in DPB
				;  even though real layout is 256 physical
				;  sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)
HSIZ0	EQU	2048 - 4	; # of blocks in first Partition  (1022 trks)
				;	
DPB50:	DEFW	64		; Sctrs/Trk	
	DEFB	5		; Blk Shf Fctr	
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ0-1		; Disk Size-1
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check Size	
	DEFW	128+(1024*0)+2	; Trk Offset
	  ENDIF
;
;.....
; Partition D.  HBIOS Disk 0, Slice 1

	  IF  DRV_D
	DEFB	'HBDSK0:1 ','D'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 256 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ1	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;		
DPB51:	DEFW	64		; Scts/Trk	
	DEFB	5		; Blk Shf Fctr
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ1-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*1)+2	; Trk Offset
	  ENDIF
;
;.....
; Partition E.  HBIOS Disk 0, Slice 2

	  IF  DRV_E
	DEFB	'HBDSK0:2 ','E'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 256 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ2	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;	
DPB52:	DEFW	64		; Scts/Trk	
	DEFB	5		; Blk Shf Fctr	
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ2-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*2)+2	; Trk Offset
	  ENDIF
;
;.....
; Partition F.  HBIOS Disk 0, Slice 3

	  IF  DRV_F
	DEFB	'HBDSK0:3 ','F'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 256 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ3	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;	
DPB53:	DEFW	64		; Scts/Trk	
	DEFB	5		; Blk Shf Fctr	
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ3-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*3)+2	; Trk Offset
	  ENDIF
;	
;.....
; Partition G.  HBIOS Disk 0, Slice 4

	  IF  DRV_G
	DEFB	'HBDSK0:4 ','G'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor (== Only the +/- sign used)
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 64 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ4	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;	
DPB54:	DEFW	64		; Sctrs/Trk	
	DEFB	5		; Blk Shf Fctr
	DEFB	31		; Block Mask
	DEFB	1		; Extent Mask
	DEFW	HSIZ4-1		; Disk Size - 1
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*4)+2	; Trk Offset
	  ENDIF
;
;.....
; Partition H.  HBIOS Disk 0, Slice 5

	  IF  DRV_H
	DEFB	'HBDSK0:5 ','H'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor (== Only the +/- sign used)
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical sectors is defined in DPB
				;  even though real layout is 64 physical
				;   sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ5	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;		
DPB55:	DEFW	64		; Sctrs/Trk - actually 256	
	DEFB	5		; Blk Shf Fctr	
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ5-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check Size	
	DEFW	128+(1024*5)+2	; Trk Offset
	  ENDIF
;
;.....
; Partition I.  HBIOS Disk 0, Slice 6

	  IF  DRV_I
	DEFB	'HBDSK0:6 ','I'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 64 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ6	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;	
DPB56:	DEFW	64		; Scts/Trk	
	DEFB	5		; Blk Shf Fctr	
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ6-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*6)+2	; Trk Offset
	  ENDIF

;.....
; Partition J.  HBIOS Disk 0, Slice 7

	  IF  DRV_J
	DEFB	'HBDSK0:7 ','J'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 64 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ7	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;
DPB57:	DEFW	64		; Scts/Trk	
	DEFB	5		; Blk Shf Fctr	
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ7-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*7)+2	; Trk Offset
	  ENDIF
;
;.....
; partition K.  HBIOS Disk 1, Slice 0

	  IF  DRV_K
	DEFB	'HBDSK1:0 ','K'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor (== Only the +/- sign used)
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical sectors are defined in DPB
				;  even though real layout is 256 physical
				;  sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ8	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;	
DPB58:	DEFW	64		; Sctrs/Trk	
	DEFB	5		; Blk Shf Fctr	
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ8-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check Size	
	DEFW	128+(1024*0)+2	; Trk Offset
	  ENDIF
;
;.....
; partition L.  HBIOS Disk 1, Slice 1

	  IF  DRV_L
	DEFB	'HBDSK1:1 ','L'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 256 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ9	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;		
DPB59:	DEFW	64		; Scts/Trk	
	DEFB	5		; Blk Shf Fctr
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ9-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*1)+2	; Trk Offset
	  ENDIF
;
;.....
; partition M.  HBIOS Disk 1, Slice 2

	  IF  DRV_M
	DEFB	'HBDSK1:2 ','M'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; 16 Logical Sectors per track is defined
				; in DPB even though there is 256 physical
				; sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ10	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)
				;		
DPB60:	DEFW	64		; Scts/Trk
	DEFB	5		; Blk Shf Fctr
	DEFB	31		; Block Mask	
	DEFB	1		; Extent Mask	
	DEFW	HSIZ10-1		; Disk Size-1	
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size	
	DEFW	128+(1024*2)+2	; Trk Offset
	  ENDIF
;
;.....
; partition N.  HBIOS Disk 1, Slice 3
	  IF  DRV_N
	DEFB	'HBDSK1:3 ','N'+80H ; Id - 10 bytes
	DEFB	FIXDSK		    ; Format type byte 0
	DEFB	SPEED8+SEC512+ALC4K ; Format type byte 1
	DEFB	-2		; Skew factor
	DEFB	1		; Starting sector number
	DEFB	16		; Logical Sectors per track
	DEFB	0		; Physical tracks/side (No Meaning in HD)

HSIZ11	EQU	2048 - 4	; # of blocks in Second Partition  (1022 trks)

DPB61:	DEFW	64		; Scts/Trk
	DEFB	5		; Blk Shf Fctr
	DEFB	31		; Block Mask
	DEFB	1		; Extent Mask
	DEFW	HSIZ11-1 	; Disk Size-1
	DEFW	1024-1		; Dir Max-1
	DEFB	0FFH,0		; Alloc 0,1
	DEFW	0		; Check size
	DEFW	128+(1024*3)+2	; Trk Offset
	  ENDIF
		
;=========== End of Hard Disk DPBs ===========