[General Topics] Menneisyys:
Let’s assume you want to emulate the 49G; therefore, let’s select one of the alternatives, “HP49G for Emu48”:

Now, click the OK button at the top right of the dialog (to the left of the X button). If nothing seems to happen, repeat this. You’ll be presented the results of the script compilation; if everything is OK, you’ll also see no error messages at the bottom of the scrollable text area and another OK button. The GUI loads and you can start working right away.

The KML script compilation process may encounter problems, particularly if you download additional KML scripts. You will want to do the latter to, for example, have a high-resolution VGA button layout on your VGA handheld, not just a low-resolution, ugly, blocky QVGA one. The two most common errors are the lack of the ROM file to load and the lack of the keyboard bitmap files:

When the ROM is missing, you will get the error message “This KML Script doesn't specify the ROM to use, or the ROM could not be loaded.”. If you don’t want to do some blind guesswork, just look into the associated KML file (with “HP49G for Emu48”, it’s in the file hp49.kml – just look for the “Title” at the top of each KML file to quickly find the associated source file) and look for the section defining the ROM; that is, the Rom parameter in the Global group at the top:

This states that, for the KML file to work, it needs a "ROM.49G" file in the same directory. Look around for the file – for example, reinstall it using the Emu48CE installer.

Missing bitmap files, for example, the lack of a “hp49.bmp.png” file in the home directory of Emu48, will result in receiving the compile error “Cannot Load Bitmap hp49.BMP” Fixing this problem, in general, only involves reinstallation and/or Googling for the given BMP layout file.

Finally, you may also encounter warnings (NOT fatal errors! That is, the compilation succeeds!) like “Patch BEEP.49G is Wrong or Missing”. These warnings can safely be ignored as these beep files only add beeping capability to the emulator – something you don’t necessarily want. If you DO need these files, however, you may find them all in the official, free HP SDK (details HERE, should the direct link refuse working) and copy emu\beep.48 / emu\BEEP.49G to the home directory of the emulator. Note that, alternatively, you can also find these beep files in the additional VGA skins, explained in the following section.

1.2 Additional KML files (a must for VGA users!)

The default keyboard skins coming with Emu48CE are QVGA only. If you have a VGA device, you’ll need to download the following skins:

Wombat3 for 48 SX and GX

HP49VGA for 49g

Just unZIP these files and transfer all the KML and bitmap files to the home directory of the emulator. After this, upon selecting a new KML file, you’ll also be shown these files as can be seen in HERE (Beemer’s 49G skin) and HERE (the Wombat3 GX skin). In action, they are indeed very cool as can be seen for example in HERE and HERE. Much prettier than low-res QVGA skins, aren’t they?

Note that if you don’t like the original (white) Wombat3 48GX script, you can also give a try to the dark, much more "natural" Juan Pardo scripts HERE. It’s not only more “natural”, but also contains some new, useful buttons in the upper left area of the screen. Example screenshot HERE.

There are several Landscape skins too (unfortunately, not in VGA – that is, for example HTC Universal / Athena users are left in cold. By default, the VGA skins aren’t Landscape-compliant.)

1.3 Usage

After all the hurdles of the installation (and, if you’re a VGA user, the additional installation of VGA skins), you can rejoice: the rest is much easier and there are no known problems with the emulator running on a Pocket PC (WM Classic / Professional), unlike with the TI emulator.

If, on the other hand, you only have a MS Smartphone, don’t expect much: while (after manually extracting and installing the files) the emulator itself starts, you can’t go any further from the KML selector screen (tested on the QVGA HTC Vox in both orientation modes; screenshot HERE and HERE).

The emulators can be used in exactly the same way as the original calculator. The only difference is the lack of the “physical” expansion like SD cards / connectivity. However, there is connectivity emulation in the emulator.

1.3.1 What if you don’t know the original calculators?

The documentation / manuals of all these models are available online. See the following links:

49G+ / 48II docs

It’s also linked from this generic page, with manuals of previous models too (note that the HP39 link doesn’t work; use the one HERE instead). I especially recommend the HP48 manual HERE if you’d like to more closely learn more about the system. Note that, however, you don’t necessarily need to read it; my tutorial will be sufficient to get you started and even load third party apps into the emulator. Only check it out if you really want to learn more about these excellent calculators.