XPRES Calculator

These are the files you need. You can send them from the package contents below.

• XPRES.EXE → A:\SOFT programa de DOS 146.2 KB

No need to put XPRES.HLP, XPRES.TXT: they are manuals, source code or supporting material. Read them here and save 80.9 KB on a 1 MB disk.

1. Copy XPRES.EXE to A:\SOFT. They are DOS programs: run them from the DOS icon, or add A:\SOFT to the PATH in C:\AUTOEXEC.BAT to call them by name.

Derived from the package contents and the 200LX conventions. It installs to A: on purpose: C: is a RAM disk and every byte there is memory taken from the system.

GETTING STARTED

You should first print the file XPRES.TXT on your printer by giving the
command:

  <C> <O> <P> <Y> <SPACEBAR> <X> <P> <R> <E> <S> <.> <T> <X> <T> <SPACEBAR>

  <P> <R> <N> <ENTER>

and then you should read the contents of this file as the printed output while
you begin running the XPRES program.


To begin running the XPRES program type the command:

                          <X> <P> <R> <E> <S> <ENTER>


The entire screen can be considered to be divided into three distinct sections.
The very top line on the screen is what is called the Menu Bar.  The very
last line is called the Status Line.  The area of the screen between the Menu
Bar and the Status Line is called the Desktop, and it is within the Desktop
that your numbers will be displayed.  Each number is displayed in a separate
window that is surrounded by a border or what will be called the window frame.
The default configuration has 8 windows labeled as Stack T, Stack Z, Stack Y,
Stack X, Last X, Memory, Clipboard, and Status.  These windows are a working
model of a Hewlett-Packard calculator with a 4-level stack.  With a few
exceptions (notably the division operation which computes both a quotient and
a remainder) this model operates exactly as a normal Reverse Polish logic
calculator.  Each window can hold a number except the Status window.  The
purpose of the Status window is to display messages which report on the status
of the current calculation.


THE MAIN MENU BAR AND SELECTING SUBMENU ITEMS

Commands are always selected from items on the Menu Bar.  If you have a mouse
then you exercise each pull-down menu by clicking or selecting the text of the
menu titles.  If you do not have mouse you can use the ALT key together with
…

Literal excerpt from XPRES.TXT, exactly as it came in the package.