This manual contains a compendium of useful formulae, programming, and In addition to helpful instructions on units conversion, directory. The HPC combines powerful numerical computation with a The HPC Reference Manual gives specific information about com- mands and how the. A collection of tools for uploading a HP 28C ROM image very quickly compared to other methods. Necessary Disassembles 81A instructions. By Paul Dale.

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Lode Vandevenne spend the PNG image decoder. Also thanks to Sebastien Carlier for his Emu48 v1. And finally I want to hp2c8 all the unnamed authors for publishing material about this calculators.

You need ROM images.

Please don’t ask me, I will not send you mine. ROM images are valid in a packed even address lower nibble, odd address higher nibble or unpacked one nibble per byte with even address first form. EXE command line utility. To do that, start a Command Prompt while running Windows, and type:. As result you will get a report of the ROM checksums. To install Emu28, just unzip the emulator and the required emulator skins into an empty directory. When Emu28 is installed and you have put the valid ROM image s into your Emu28 installation directory, you can start Emu KML scripts in fact define the visual aspect of Emu28, the behavior of the buttons, of the keyboard, Check that the path in the “Emu28 Directory” text area is correct.

Modify it if the directory in which you installed Emu28 is not the directory displayed. Click the refresh button “V” after modifying it to update the list box or use the ” If you are interested in writing new scripts, get the KML 2. Once you have selected a script, press OK to start the emulator.

The command line syntax is ” Emu28 [file] “. The parameter sets the filename for the emulation data independent from the “LastDocument” setting. The argument is optional.

The easiest way to use the emulated calculator is using the mouse. The KML script define buttons with an area where mouse input is active. The mouse cursor change from an arrow to a hand cursor in these areas. The state of the virtual key follow the state of your left mouse button. When the mouse cursor leaves the virtual key area the virtual button automatically release. In some cases you need to press more than one key on the emulator.

For these cases press the virtual key with the right mouse button. When you release the mouse button or leave the area of the virtual key, the key is still hold. To release all hold virtual buttons, just use the left mouse botton again.

A single release of a hold virtual key isn’t possible. Another convenient way is using the PC keyboard. The KML script language support a large variety of commands to implement this feature. So keyboard usage depends on your used KML script and not on the emulator.

Because of this it’s impossible to say what’s happen when you press a key on the PC keyboard. For further details read the KML 2. Creates a new emulation session. You’re asked for a new KML script where you can select the calculator type and skin to emulate. Opens an existing emulation session. The emulation continues at the same position where the loaded session was aborted.


Saves the current running session with a new name. You’re also get in this dialog when you Exit a new session without a state file name. This calls the Settings dialog. This dialog has manusl sections: General, Disassembler and Sound. When this option is checked, the menu bar is enabled.

If unchecked, the menu is accessible as context janual in the client area outside the calculator button definitions. This option enables a X-Mouse style windows activation. When the mouse is moved over the emulator window, the emulator is getting the focus and popping up into foreground. When this option is checked, the program is only allowed to run in a single instance. If another running instance is detected, the detected instance is set into foreground as active window and hp28v a request to change his state file to the given one by the current instance.

Finally the current instance is terminated. When this option is checked, the current state file will automatically saved when you change to another state file, but not when you close the emulator program.

When this option is checked, the current state file will be saved automatically at the end when the emulator program is closed. When this option is checked, you’ll get a warning message box when you try to load an object to stack level 1 over the Load Object If this option is unchecked, the warning will be skipped. When this option is checked, you see the results of the KML Keyboard Macro Language interpreter at every emulator startup.

Class Clarke assembler was written by Lutz Vieweg inat a time when HP had not published their own development tools. A new implementation of the sound engine made ROM patches for sound output obsolete. The new sound engine emulates the behavior of the beeper output ports and only work in connection with a sound card. Using the internal PC speaker isn’t possible any more.

HP 28 Programming Tools

The old beeper method with a ROM patch is still working but deprecated, it’s strongly recommended to remove all beep patches from your current KML scripts to enable the new sound engine. The support of the old sound implementation by a ROM patch maybe removed in later versions of the emulator and remaining beep patches will corrupt the ROM with an illegal opcode then. For the manua, generation the calculator must know his own CPU strobe frequency.

On the real calculator the speed depends on various settings like component tolerances, actual temperature, humidity and other variables. The content of this calculator variable has direct influence on the resulting frequency and duration. The content of this variable multiplied with is the CPU strobe frequency in Hz used by h;28c emulator. You easily may discover this by measuring the real duration of a 10s beep. Is the difference to 10s less than mahual everything is ok, if not, you should perform a warmstart of the calculator in this session manuap.


Alternatively you may execute a Reset Calculator.

This recalls the measuring routine and save the result in the speed variable. Both restart variants purge the stack content!

The output volume can be selected with the Volume slider relative to the Master Volume control. By default the sound device is set to “Standard Audio”, but you can also manually choose the output device.

The device name is somehow cut since Window Vista, but the method of reading the device name is used for backwards compatibility to older versions of the Operating System. When you change the Standard Audio device in the Operating System settings dialog, the internal device numbering may change, and so the manually selected audio device. The data transfer to the printer simulator is done over UDP.

HP series – Wikipedia

In this section you can the define the IPv4 address and the port the printer simulator is listening. A suitable HPB printer simulation can be found here. The default actions at finishing are defined in the Settings dialog. If the current session is “Untitled” you are asked for a session file name using the Save As If you quit the emulator without a given filename, you’re asked for choosing a KML script at next startup. This is only valid for the HP28C emulation.

You can load HP28C binary objects to stack level 1. If the binary header isn’t present, the object is loaded as string. Dropping HP objects over the emulator window will also load objects. Be sure that the emulator isn’t busy before doing this. Save the current object in stack level 1 as HP28C binary object to disk. On all other objects, the command will be ignored. This prevents sending binary objects to the clipboard.

HP-28 series

The decimal point radix mark of “Real Numbers” in the clipboard is equal to the calculator setting. This point maybe important when you try to paste the numbers into maanual program using the locale settings of the host operating system. Paste the text field content of the clipboard ,anual stack level 1 of the emulated calculator.

If the clipboard content is representing a real number, the number will be saved as janual Number” object. Is the content a complex number object, the number will be saved as “Complex Number” object, in all other cases as “String” object. To import “Real or Complex Numbers” from the clipboard, the decimal point radix mark of the clipboard and calculator must be equal.

A real or complex number is only detected in the case of valid real number characters in the clipboard. Especially heading and tailing white spaces aren’t valid number characters also. Complex numbers must be in the form a,b when using the point radix mark or in the form a;b when mnual the comma radix mark. This saves the current emulator status into a backup slot.