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- SUPRDOS2 User's Guide
- SUPRBDOS Release 2, 10/11/86
-
-
- The following files should be in your distribution package:
- READ.ME- overview of SUPERBDOS features
- SUPRBDOS.DOC -user's guide and installation instructions
-
- DOS.AZM-
- DOS1.MAC- source to SUPERBDOS
- DOS2.MAC
- INSTALL.COM -program to assist you in installing SUPRBDOS
- INSTALL.PAS -Turbo Pascal source to INSTALL.
-
- Z80MR.COM- public domain Z80 assembler used in installation of
- SUPRBDOS
- Z80MR.DOC
- EX.COM - enhanced submit utility used in installation
- PUBLIC.COM-utility for handling public files
- PUBLIC.DOC
- PUBLIC.SRC
- UNCR20.COM- file uncruncher
-
- SEMI-AUTOMATIC INSTALLATION
-
- 1. Extract all files from SUPRBDOS.LBR onto a blank disk in drive B.
- Extract all files from Z80MR.LBR onto the same disk. Delete Z80MR.LBR.
- Uncrunch all type *.?Z? files by typing UNCR20 *.?Z?
-
- 2. Copy SYSGEN.COM and DDT.COM from your CP/M disk to your SUPRBDOS disk.
-
- 3. Create a disk file containing your CP/M or ZCPR3 system image. Do
- this by running sysgen as follows:
-
- A>sysgen
- SYSGEN VER 2.2
- SOURCE DRIVE NAME (OR RETURN TO SKIP)a
- SOURCE ON A, THEN TYPE RETURN<ret>
- FUNCTION COMPLETE
- DESTINATION DRIVE NAME (OR RETURN TO REBOOT)<ret>
-
- A>SAVE x CPM.BIN
-
- x is size of your CP/M system in 256-byte "pages". If you are not
- sure what this number is, try 50.
-
- 4. Run INSTALL. If all goes well, the program will end by telling you to
- "TYPE EX GO to continue SUPRBDOS installation." If INSTALL aborts
- saying 'Can't locate bdos', read the manual installation section.
- If INSTALL asks you to try again, do as it says.
-
- 5. Type EX GO.
-
- 6. You now have a copy of SUPRBDOS in a file called DOS.BIN.
- Install it on a few test disks by typing
- B>sysgen dos.bin
- SYSGEN 2.2
- DESTINATION DRIVE (RETURN TO REBOOT)a
- DESTINATION ON A, THEN TYPE RETURN<ret>
- FUNCTION COMPLETE
-
- 7. Warm boot your system with SUPRBDOS in A. If it boots correctly,
- continue testing by copying files, running programs, until you are
- satisfied that it works. Try this: Warm boot with SUPRBDOS, PIP, and
- a test file in A. Change the disk in B without hitting Control-C. PIP
- the test file to B. No "Bdos Err on B: R/O"!
-
- If your system hangs or goes completely nuts upon warm booting with
- SUPRBDOS, repeat the installation again. If the problem recurs,
- please write and tell me about it. Include as much information as
- possible. Otherwise, see your local CP/M expert (alas, a vanishing
- breed).
-
- MANUAL INSTALLATION
-
- Automatic installation should work on most systems with standard CP/M 2.2.
- If you have a non-standard CP/M, proceed with caution; SUPRBDOS might not
- work with your CP/M.
-
- The steps involved are :
- 1) Find the location of the bdos in your computer's memory. This number
- ends in a 6. Subtract 6 from this number and call the result BdosMemAddr.
-
- 2) Find the location of the bdos in your CP/M system image file. Do
- DDT CPM.BIN and type 'D' repeatedly to scroll through the contents of
- CPM.BIN. Somewhere, there should be the word 'Bdos', followed by
- the text of the various bdos error messages. If you can't find these,
- your CPM.BIN file is screwed up, or you have a non-standard CPM.
- When you find the word 'Bdos', not the most recent address ending
- with a 00 or 80. Call this number the BdosFileAddr.
-
- 3) Compute the Offset (hex arithmetic) as follows:
- Offset := $10000 + BdosFileAddr - BdosMemAddr.
-
- 4) Overlay the old bdos with SUPRBDOS.
-
- B>ddt cpm.bin
- DDT VERS 2.2
- NEXT PC
- a b (DDT prints these numbers)
- icpm.bin (you type this)
- r (you type this)
- f<BdosFileAddr> <BdosFileAddr+$0E00> 0 (clear out old bdos)
- idos.hex (you type this)
- r<offset> (type "R" followed immediately by the offset you calculated
- ^C (exit DDT)
- B>
-
- Now, do SAVE x DOS.BIN, where x is the same number you used in
- saving CPM.BIN.
-
- 5) SYSGEN DOS.BIN to write SUPRBDOS onto your disks.
-
- USAGE
-
- -----Changing Disks Without Control-C
-
- SUPRBDOS should work just like your old BDOS, quietly and out of your way.
- It has some additional features which make it much nicer than your old BDOS.
-
- For example, let's say you're writing the "Great American Novel" with
- WordStar. It's late, you've written all day, and you want to move on to
- other things. You hit ^K^D to save your work, and WordStar burps:
- **Disk Full. Press <ESC>**
-
- With your old BDOS, if you switched disks, you'd get
- Bdos Err on A: R/O
- and you'd say bye-bye to Chapter 5 unless you had a text recovery program.
-
- With SUPRBDOS, move to the beginning of file using ^R, not ^Q^R, and mark the
- beginning of a block. Move to the end of file using ^C, not ^Q^C, and mark
- the end of block. Hit ^K^W to write the block to disk. Enter a filename on a
- drive not containing your novel (probably your WordStar disk). Remove the
- disk from that drive, and insert a blank disk. Hit return, and your work will
- be saved to a new disk. Finally, replace the old disk. Try this with your
- old BDOS, and you'd be quite sorry.
-
- SUPRBDOS's "Control-C-less" operation is not limited to Wordstar. You may
- change disks at any time, with any program, with one exception. IF A FILE IS
- OPEN FOR WRITING, DO NOT CHANGE DISKS UNTIL THE FILE IS PROPERLY CLOSED. IF
- YOU DO, YOU WILL TRASH YOUR DISKS! This is why, in the example above, we
- changed the disk containing WordStar, not the disk containing the novel. No
- files were open for writing on the Wordstar disk, so it was ok to change it.
- The novel file was open, so its disk could not be changed.
-
- -----Public Files
-
- If you use user areas, you'll love this. Public files are files which are
- accessible from all user areas. Normally, if Wordstar was in A7: and
- your text files in A8:, you could not edit your files with Wordstar. If
- Wordstar and its overlays were made public files, you could be logged into
- A8:, B6:, or any other user area and still run Wordstar.
-
- Public files are invisible to the use of wildcards, so you may not copy them
- with PIP *.*. They must be specified by name. Public files are also
- read-only, so they may not be erased.
-
- To make a file PUBLIC, run the PUBLIC program which is included with SUPRBDOS.
-
- Ex: A>public ws.com
-
- To restore a file to normal (make it private),
- A>public ws.com x <---the X makes the file private.
-
- ----Error Messages
-
- SUPRBDOS may produce the following error messages:
-
- Disk Error on A : error message
- Function xx ; File = FILE.TYP
- where the error message may be
-
- Read error
- Write error
- Non existent drive
- Read-Only (this happens only if disk was set to r/o with bdos function 28,
- not when disks are changed.)
- File is Read-only
-
- The BDOS function number and the file involved (if applicable) are given, so a
- full message may be:
-
- Disk Error on A: Write error
- Function 22 ; File = CHAPTER.5
-
- In this case, there was a write-error trying to create file CHAPTER.5.
-
- -----Advanced Features
-
- SUPRBDOS has optional time-stamping capabilities built in. To use these, you
- must have a real time clock and a bios routine which access the clock. You
- must edit DOS.Z80 and set DOTIME to TRUE and reinstall SUPRBDOS. You must
- also "initialize the directory for time stamps", according to the author of
- P2DOS, from which SUPERBDOS is derived. How this is done is not explained.
- Maybe an adventurous soul out there will find a way.
-
- SUPRBDOS can be installed so that functions 13 and 37 allow the free
- interchange of single and double sided disks. On many machines, such
- as the Kaypro IV, changes between single and double sided disks are
- recognized only at warm boots. Obviously, this is a limitation on the
- switching of disks without Control-C. If your machine is one of these
- and if you have the source to your bios, you can remove this limitation.
- Add code to your bios cold boot routine to initialize a jump to the
- routine which decides if the computer is looking at a single or double
- sided disk. Suppose this routine is DISKINIT. Change your cold boot
- routine to look like
-
- CHKTYP EQU 04BH
-
- CBOOT: Blah
- Blah
- Blah
- LD HL,CHKTYP
- LD A,0C3H ;initialize a jump
- LD (CHKTYP),A
- LD HL,DISKINIT ;to DISKINIT
- LD (CHKTYP+1),HL
- Blah
- Blah
- JP CCP ;pass control to CCP
-
- This code puts a JP DISKINT instruction at 04BH. Edit DOS.Z80, setting
- the RESDSK conditional to TRUE. Set SETDSK equal to CHKTYP. Re-assemble
- SUPRBDOS. Now, functions 13 and 37 will identify new disks by calling
- CHKTYP, which in term "calls" DISKINIT.
-
- This feature is extremely useful to have when using disk cataloging programs,
- the file utility NSWP207, the library manager NULU 1.5, and many others
- with which expect disk changes and call functions 13 and 37 to change
- disks.
-
- ***************************************
- Legal Stuff
-
- To my knowledge, all components of the SUPRBDOS.LBR are public domain
- for non-commerical use only. SUPRBDOS is a modification of P2DOS, by
- H.A.J. Ten Brugge from the Netherlands, and therefore is subject to the
- same restrictions as P2DOS. Z80MR and the PUBLIC files are public domain.
- INSTALL is a program written by moi, and is also public domain.
-
- I assume no liability for the use of or the consequences of the use of
- SUPRBDOS.
- ***************************************
-
- Questions and comments can be directed to
- Benjamin Ho
- 626 Emerson St.
- Evanston, IL 60201
-
- SUPRBDOS was developed on a Kaypro IV.
- rected to
-