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- RECALL g.r.a.m. Associates RECALL
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- Purpose: Recall permits the user to retrieve any one of up to 50
- unique DOS commands previously issued by the user. Once
- retrieved, the command may be executed as is or modified by
- the user via the normal DOS line editing keys.
-
- Usage: RECALL [-qb?]
- -q Suppresses the initial help screen when Recall
- is loaded.
- -b Suppresses the loading and the end-of-buffer
- bells.
- -? Produces a help screen without loading Recall.
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- Operation: F10 - recall the next oldest command.
- Alt-F10 - recall the next newest command.
- Shift-F10 - toggle the recall feature on and off.
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- Note: Attempts to recall beyond the first command issued (or the
- last command) are accompanied by a chirp (the end-of-buffer
- bell). Recall will subsequently wrap around to the last
- (first) command.
-
- Examples: Although the most meaningful examples will occur quite
- naturally with daily use, the following examples should help
- get things started.
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- 1) The goal is to get before and after printouts of the
- tabular data file mywealth.dat as produced by a BASIC program
- myprog.bas. (It is assumed that the table requires the
- printer to be in 132 column mode for a readable printout and
- further that BASIC resets the printer.)
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- Keystrokes DOS screen Comments
- ========== ========== ========
- 1-Enter com- A>dir my*.* List files
- 2- mands as A>mode lpt1:132 Set printer
- 3- shown after A>copy mywealth.dat prn: Print file
- 4- DOS prompt. A>basic myprog Run program
- 5-F10, A>\
- F10,F10 A>mode lpt1:132 Reset printer
- 6-F10, A>\
- F10,F10 A>copy mywealth.dat prn: Print new file
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- 2) Sometimes a rapid fire trigger finger will strike key F10
- too often, thus overrunning the DOS command. In such a case
- the Alt-F10 combination may be used to return to the missed
- command.
-
- Keystrokes DOS screen Comments
- ========== ========== ========
- ... See example 1
- 4-Enter as shown A>basic myprog Run program
- 5-F10, A>\
- F10,F10,F10 A>dir my*.* Oops!
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- RECALL V2.10 Page 1
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- RECALL g.r.a.m. Associates RECALL
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- 6-Alt-F10 A>\
- A>mode lpt1:132 Got it!
- 7-F10, A>\
- F10,F10 A>copy mywealth.dat prn: Print new file
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- Caveats:
- - The DOS type ahead feature is disabled when using F10.
- - Recall will not work concurrently with FileCommand by IBM
- while it is attached to DOS.
- - Recall may fail if the total memory is changed to a non-4K
- multiple.
- - No known bugs.
-
- Technical: The motivation for Recall was to provide a natural
- extension of the DOS F3 key which restored only the very last
- DOS command executed. When first run, Recall attaches itself
- to DOS and chains itself onto the keyboard interrupt vector
- thus becoming poised to sense all F10, Alt-F10, Shift-F10 and
- other related keystrokes. To prevent interference with other
- programs which use the function keys, Recall intercepts the
- DOS function calling mechanism and verifies that the user is
- at the DOS prompt level before processing any keystrokes.
- Moreover, Recall prevents multiple copies of itself from
- occupying memory by sensing its existence as an extension of
- DOS. Recall reduces available memory by 8016 bytes.
- Only the following versions of PC-DOS are currently
- supported: V1.1, V2.0, V2.1. Support for any other IBM and
- compatible versions of DOS will correspond to interest and
- availability to the authors.
- It is recommended that the loading of Recall be incor-
- porated into the boot-up procedure (autoexec.bat).
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- User Supported Software
-
- If you have used this program and found it of value,
- your contribution ($10 suggested) will be appreciated.
- Regardless of whether you make a contribution, you are
- encouraged to copy and share this program. Users
- sending in a contribution of $10 or more will be
- entitled to a free update and notification of other
- utilities as they become available.
-
- Send all correspondence to:
-
- G.R.A.M. Associates
- User Supported Software
- 450 N. Jordan Street
- Allentown, Pa. 18102
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- RECALL V2.10 Page 2
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- This disk copy was originally provided by "The Public Library",
- the software library of the Houston Area League of PC Users.
-
- Programs are available from the Public Library at $2 per disk
- on user-provided disks. To get a listing of the disks in the
- Public Library, send a self-addressed, stamped envelope to
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- Nelson Ford, P.O.Box 61565, Houston, TX 77208.