Prog Assistants
Volume Number: 7
Issue Number: 4
Column Tag: Tools of the Trade
Programmer's Assistants 
By Dave Kelly, MacTutor Editorial Board
Programmer’s Assistants Provides Six Developer Utilities
The next time you’re planning a development project don’t forget to include
debugging tools. A debugger doesn’t need to be complicated to get the job done either.
Most of the time, you just want to see what your program is doing while it is running.
This is a lot harder once you compile the application. This requires you to have a
knowledge of your favorite debugger’s capabilities. It helps to understand how the
Macintosh works too.
Aladdin Systems, Inc., the “StuffIt™” company provides a set of six desk
accessory utilities to help you in your development effort. The Programmer’s
Assistants isn’t a substitute for a good debugger, but can provide some features that are
worth mentioning here. These utilities were written at the time Raymond Lau was
developing StuffIt. Ron Kashden wrote the set of routines as an aid to help in-house
development. Raymond Lau needed tools to help see what was going on with his program.
Eventually, someone suggested that these tools be made available to everyone.
The package has a notebook of documentation and an 800K disk. There are six
chapters in the documentation, one for each utility. Each section has its own separate
table of contents. The documentation doesn’t have master table of contents or an index.
Every chapter has been design to teach the theory and practice upon which each utility
is based. Some people use this package strictly to learn the theory presented in the
documentation. To find something you must find the chapter’s individual table of
contents and look it up from there. Basic On-Line help information is available for
each “Assistants” on-screen. Each window provides a button that accesses the help
information.
As mentioned above, there are six DA utilities. Depending on the stage of
development that you are in, some of them will be more valuable to you than others.
Each utility fills a niche not covered by another. You can decide for yourself which
utility you want to use. The Programmer’s Assistants names sound like they come from
a mystery movie: The Professor, The Bystander, The Detective, The Witness,
Continuity and Bean Counter. A description of each follows.
The Professor Numerical Analyzer performs 23 different integer functions. To
use the Professor is straight forward. First set the base to binary, decimal, hex, or
octal using the pop-up menus. Next the you select the function from a list dialog by
clicking the function button. You may select an 8, 16, or 32 bit value for the value
fields. Finally, you click on the “Do It” button to calculate. The 2nd value field acts as
a mask for several functions.
The documentation contains a lot of information on numbers. The documentation
explains conversion theory for base 2 (binary), decimal, hex, and octal. It’s more
than just a base conversion calculator. Since the Professor’s 23 functions are
available, you can predict the outcome of your code at the time you write it. This will
help you get it right the first time.
The functions supported are: Add, And, Arith.Shr, ClearBit, Divide, Hi, HiWord,
Lo, LoWord, Logshr, Mod, Multiply, Not, Or, RotateR, RotateL, SetBit, Shl, Subtract,
Swap, SwapWord, TestBit, and Xor. You will find that the Professor will be a handy DA
to have around.
The Bystander Event Watcher allows you to observe what the Mac is doing. The
display shows the status of the mouse, memory, and events as they occur. You can see
from the sample “Bystander” window that the Bystander caught my F-Key press when
I dumped the Bystander window to a PICT file. It shows that I pressed the “5” key with
cmd and shift modifier keys pressed. The mouse location is specified for both global and
local coordinates.
Next, the window displays memory information for the current heap block used.
The block of memory can be the Application, or the System, or DA Handler if you are
running under Multi finder. You also can specify which events you want to have
displayed. You can ignore keydown events if you want to, and the Bystander will display
whatever the last specified event was.
Bystander is not without problems though. Although it appears to work as
documented, there are bombs that occur occasionally when switching from one
application to another in MultiFinder.
The Detective is an interactive debugging tool that displays variables related to
your program in their proper types. The documentation gives a complete list of over
150 system global variables. These variables can be selected from a list window and
actively displayed in a second window. As the variables change the display is updated.
The Detective provides a great way to see what’s happening while your program is
running.
The Witness is similar to the Bystander, except that this desk accessory records
events in the background and logs them in a generic text file named “Event Log”. You
can review the log later to figure out exactly what happened if any bugs occur in your
program. The Witness allows you to select exactly which events you want recorded.
The header of the Event Log data file displays information about the Macintosh you are
using. Version 1.0 (reviewed here) does not know about the Macintosh IIci, but is still
a very useful tool.
Continuity Document Historian is a DA that helps you keep track of revisions
made in multiple documents. The Continuity DA updates the version resource for each
file you select in your project. Until the latest versions of ResEdit were release it was
still somewhat awkward to update the revision number. Continuity helps you do that.
Of course with the latest ResEdit you can use the ResEdit template to update the version
resource and save it to several files. This DA was of more use a year or so ago, but can
still be used to keep the current version information up to date.
Bean Counter Optimizer is primarily useful to assembly language programmers.
This DA allows you to check the code you have written and examine the number of clock
cycles. You may then optimize your code by adjusting lines of code for the best
performance. It’s a time consuming process to optimize code and the Bean Counter can
really help.
There are many complaints about the increasing size of applications today now
that memory is easier to afford. If you are programming assembly language, you
should pay attention to the size of your application. Bean Counter was used extensively
in streamlining StuffIt Deluxe. It should be noted that Bean Counter is the number one
reason that developers buy Programmer’s Assistants.
The documentation for Bean Counter includes a summary of the syntax allowed.
Bean Counter was designed for use with syntax from a variety of assemblers.
Programmer’s Assistants retails for $99.95, though the street price (via mail
order) is about $65. Although the entire set of DAs may not be useful to everyone,
these utilities can truly help you in debugging your development project.
Aladdin Systems, Inc.
Deer Park Center Suite 23A-171
Aptos, CA. 95003
408-685-9175
FAX: 408-662-8418
AppleLink: ALADDIN
America OnLine: ALADDIN
Connect: ALADDIN
GEnie: ALADDINSYS
CompuServe: 75016,325
Internet: aladdin@well.sfca.us
Retail Price: $99.95 (street price $65)
New Stuff
Although it seems Microsoft is not supporting QuickBASIC there have been some
maintenance releases that you’ll want to know about. The latest version of version 1.0
supports all Macs and systems through 6.0.7. That doesn’t mean that the problems are
completely fixed though. At MacWorld Expo in January, Microsoft hinted that
QuickBASIC would not remain ignored for long, but there was no more information on
what that means.
ZBasic is still alive and well too. Again there are hints of a new version 6.0 of
ZBasic later this year. We’ll just wait and see. There was no sign of True Basic at
MacWorld and the latest version I have will not run anymore. That’s either because it
doesn’t support the latest system (6.0.7) or because it doesn’t support the IIci. At any
rate it appears that there are only two BASIC products left.
Referenced by (2):