On 8/31/2020 10:44 AM, ZB wrote:
1. I believe it would be handy if it could immediately after its start
perform 'r' (show registers' contents). Usually we're going to have
a look at that first when using "debug". Even if we aren't - having
these two lines on the screen immediately after start won't do any harm.
2. It could keep "history" for last, say. twenty-thirty command-line entries
(available as usual with Up/Down keys).
3. Its command line should recognize "movement keys" just like command.com
does, I mean Home/End should move cursor to beginning and end current
entry, Left/Right also for movement (presently Right does just "latest
entry" while Left is redundant "Backspace" copy) and Del should "eat"
characters "right from the cursor" (the usual "Del way").
Just basic stuff. Actually I believe that EVERY utility that offers command
line entry should act like I described in points 2 and 3. Why not use these
keys we have present on every PC keyboard - for easier and faster editing?
Well, I am not sure that this is such a good idea. A lot of those
command line tools are also capable of being used in an interactive
mode, DEBUG for example can be fed instructions to create small/tiny
.COM programs via assembler instructions.
A second issue is that a lot of those tools are created for low resource
environment, so adding all those editing features to it can increase the
size of their executables. Beside that you can easily get to the point
where it makes more sense to use a bigger, more "advanced" program with
things like full screen editing in the first place.
Ralf
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