********************************************************************
* mc09sdcdesc - Multicomp09 SDCC Device Descriptor Template
*
* $Id$
*
* Edt/Rev  YYYY/MM/DD  Modified by
* Comment
* ------------------------------------------------------------------
*          2015/08/31  ncrook
* Created from 1773 descriptor template
*          2016/01/07  ncrook
* Bill Nobel pointed out the impact of reusing the Interlv and SAS
* bytes, so I have allocated 2 new bytes for SDOFFSET. Also, set the
* track and sector count correctly because these are needed for
* calculations by RBF during writes.

         nam   mc09sddesc
         ttl   Multicomp09 SDCC Device Descriptor Template

         use   defsfile

tylg     set   Devic+Objct
atrv     set   ReEnt+rev
rev      set   $00

* All of these values can be provided on the build line in the Makefile
* overriding the defaults below
         IFNDEF DNum
DNum     set   0
         ENDC
         IFNE  D35
Type     set   TYP.CCF+TYP.3
         ELSE
Type     set   TYP.CCF+TYP.5
         ENDC
         IFNDEF Density
Density  set   DNS.MFM
         ENDC
Step     set   STP.6ms
         IFNDEF Cyls
Cyls     set   35
         ENDC
         IFNDEF Sides
Sides    set   1
         ENDC
Verify   set   1
         IFNDEF SectTrk
SectTrk  set   18
         ENDC
         IFNDEF SectTrk0
SectTrk0 set   18
         ENDC
         IFNDEF Interlv
Interlv  set   3
         ENDC
         IFNDEF SAS
SAS      set   8
         ENDC

         mod   eom,name,tylg,atrv,mgrnam,drvnam

         fcb   DIR.!SHARE.!PEXEC.!PWRIT.!PREAD.!EXEC.!UPDAT. mode byte
         fcb   HW.Page    extended controller address
         fdb   $FFD8      physical controller (base) address
         fcb   initsize-*-1 initialization table size
* In "The NitrOS-9 Technical Reference" describes this initialisation table.
* The first byte is at offset IT.DTP from the start of the module but is copied
* to PD.DTP in the path descriptor.
         fcb   DT.RBF     device type:0=scf,1=rbf,2=pipe,3=scf
         fcb   DNum       drive number
         fcb   Step       step rate
         fcb   Type       drive device type
         fcb   Density    media density:0=single,1=double
         fdb   Cyls       number of cylinders (tracks)
         fcb   Sides      number of sides
         fcb   Verify     verify disk writes:0=on
         fdb   SectTrk    # of sectors per track
         fdb   SectTrk0   # of sectors per track (track 0)
         fcb   Interlv    sector interleave factor
         fcb   SAS        minimum size of sector allocation
         fcb   0          IT.TFM
         fdb   0          IT.Exten
         fcb   0          IT.STOff
* SDcard driver-specific additions to the device descriptor go
* here. They do NOT get copied into the path descriptor; they
* cannot because there is NO ROOM. The driver has to access these
* values directly in the descriptor (see rbsuper/superdesc for how)

* High 16 bits of the 24-bit SDcard block address corresponding
* to the start of this disk image.
         fdb   SDOFFSET
initsize equ   *

         IFNE  DD
name     fcs   /DD/
         ELSE
name     fcb   'D,'0+DNum+$80
         ENDC
mgrnam   fcs   /RBF/
drvnam   fcs   /mc09sd/

         emod
eom      equ   *
         end