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So "new program" should really be "new project" (conceptually speaking). In fact, one may even use a single source file to create all the programs and variables that will ever be used on the calculator! Moreover, one may even create several procedural functions within the same source file.
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That is, the user is free to change MYPROG() to something completely different from the source file name MYPROG. However, the procedural function need not have the same name as the source file. a program, similar to - but different from - a mathematical function). It is used by the system to create a template procedural function (i.e. The name specified in the input screen is the name of the source file. Remark: The phrase "new program" as used by the New menu option in the Program Catalog is misleading. If a function is called and its binary does not exist, then the binary will be compiled as needed without requiring user intervention. The header remains even after a reboot (warmstart) whereas the binary does not. At runtime, the header is used to enable access to exported functions or variables.
Learn to program hp calculator emulator code#
When source code is compiled, a binary is created separate from the source code along with a pointer to the binary and a header consisting of exported variable/function names and argument information.
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Moreover, the source code is also compiled (even while still inside the Program Editor). If no errors are found, a message box saying "No errors in the program" will be displayed. If an error is found, the cursor (and screen) will be moved to the location of the first error found. To validate the source code without exiting the Program Editor, press Check on the menu at the bottom of the screen. If an error was found, the first error is displayed in a message box after exiting (and no compilation occurs). All changes are automatically saved.Īdditionally, the source code is parsed to check for syntax errors and, if no errors are found, compiled. To exit the Program Editor, simply press the J key. After pressing OK you will be presented with the Program Editor with a default template as shown below: EXPORT MYPROG() You will then be presented with a new input screen titled "New Program" and be required to enter in the name of the "new program."įor this example, type in MYPROG. To create a new program, press OK from the menu at the bottom of the screen. Below the source file for the current app are the source files of user programs. At the very top will always the source file for the current app. Press the S key followed by the 1 key to view the Program Catalog. Part I: Editor, Compiler, Program Execution 1.
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That said, any source file may be written completely on a computer and transferred to the calculator or emulator, completely bypassing the built-in Program Editor. This introduction will assume that the user does all programming on the calculator. Articles : HP Prime Programming: An Introduction