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-
-
- FORMAT COMMAND MODIFICATION
-
- -Single Disk Format and Exit-
-
- The modification is supplied as a modified format program,
- "ONEFOR.COM", a batch file example "TWOFOR.BAT", and a DEBUG
- script to permit re-installation of the modification.
-
- THe purpose of this modification is to permit rapid formatting of
- a large number of diskettes with a minimum of intervention.
-
- Requirements
-
- Effective use of this mod requires:
-
- * IBM Personal Computer with 128K or more of main storage.
- * Three disk drives, or two disk drives and any RAMDISK type
- storage-based disk emulator.
- * A large pile of unformatted diskettes.
-
- Operation
-
- Use of the ONEFOR program is begun by copying the TWOFOR batch
- file and the ONEFOR.COM file to the "C:" drive (Or to the
- RAMDISK). This drive will become the default:
-
- copy onefor.com c:
- copy twofor.bat c:
- c:
- C> <----at this point setup is complete:
-
- Now place an unformatted disk in each of drives A & B , and
- enter:
-
- twofor
-
- ..The diskette in Drive B: will immediately begin formatting ..
-
- Most of the usual FORMAT command messages will appear, but no
- operator prompts will be expected. The ONEFOR command formats one
- diskette and exits. The combination of the ONEFOR command and the
- TWOFOR batch file allows for continuous formatting on both drives
- A: & B:, while allowing complete overlap of the physical
- replacement of diskettes, and the actual formatting of the media.
-
- .. When the B: disk has been formatted, the system will BEEP
- twice, and then begin to format the diskette in the A: drive. Now
- the disk in the B: drive must be replaced, before the two BEEP's
- which signal the end of the A: drive format .. and so the loop of
- the TWOFOR batch file bumps back and forth between the A: and B:
- drives.
- .pa
-
- Technical Attachment
-
-
- TWOFOR.BAT
-
- FORMAT B: /1/S/V
- FORMAT A: /1/S/V
- TWOFOR
-
- This batch file alternates formats between drives A: and B:
- and re-invokes itself endlessly. The formatting loop can be
- terminated by depressing CTRL-BREAK during any message display.
- If CNTRL-BREAK is pressed while formatting, it will not be
- recognized until the next message is displayed.
-
- DEBUG Script for ONEFOR.COM
-
-
- A>debug format.com
- -nonefor.com
- -d1e0,1ef
- xxxx:01E0 06 BA F5 06 E8 4F 02 BA 18-07 E8 49 02 E8 5A 02 ......
- -e1ed,90,90,90
- -d450,45f
- xxxx:0450 BA 4B 07 E8 E0 FF B8 01 0C-CD 21 24 DF 3C 59 74 ......
- -E456,90,90,90,90,90,90,90,90,90,90,90,90,90,EB
- -d718,71f
- xxxx:0718 -61 6E 64 20 73 74 72 69 ......
- -e718,07,00,00,00,00,00,00,00,00,00,00,00,00,00,00
- -e728,00,00,00,00,00,00,00,00,00,00,00,00,07
-
- u450,464
- MOV DX,074B
- CALL 0436
- NOP
- .
- . (Thirteen NOP's)
- .
- JMPS 046A
- -W
- Writing XXXX BYTES
- -Q
- A>... At this point the ONEFOR.COM program is created.
-
- This program has all of the native capability of FORMAT, but will
- only format one disk before exitting, and will BEEP twice when
- the format is complete.
-