![]() This of course, is not possible if the program is in a. When you run a program compiled in memory, and a runtime error occurs the editor is invoked, and the error is automatically pointed out. These parameters may be accessed through the ParamCount and ParamStr functions. Memory mode, just as if they had been entered on the DOS command line. The P-command lets you enter one or more parameters which are passed to your program when running it in If you set the End address higher than this, the resulting programs cannot be executed from TURBO, as they will overwrite the TURBO loader and if you set it higher than the TPA top, the resulting pro-grams will overwrite part of BDOS if run on your machine. If you just hit, the default value is assumed (i.e. When you enter an E, you are prompted to enter a End address. C100 (48K), or even A100 (40K) if the program is to run under MP/M. If you antici-pate your programs to run on a range of different computers, it will be wise to set this value relatively low, e.g. If compiled programs are to run in a different environment, the End ad-dress may be changed to suit the TPA size of that system. The default setting is 700 to 1000 bytes less to allow space for the loader which resides just below BDOS when executing programs from TURBO. The value in parentheses indicate the top of the TPA on your computer, i.e. ![]() The End address specifies the highest address available to the program (in hexadecimal). Don’t set the Start address to anything less than the minimum value, as the code will then overwrite part of the Pascal library. If you just hit, the minimum value is assumed. When you enter an S, you are prompted to enter a new Start address. for absolute variables to be shared by a series of chained pro-grams. This is normally the end address of the Pascal library plus one, but may be changed to a higher address if you want to set space aside e.g. The Start address specifies the address (in hexadecimal) of the first byte of the code. When Com or c Hn mode is selected, the menu is expanded with the following two lines: This file contains the program code but no Pascal library and must be activated from another TURBO Pascal program with the Chain procedure (see page 263). When active, code is written to a file with the same name as the Work file (or Main file, if specified) and the file type. Programs compiled this way may be larger than programs compiled in memory, as the program code itself does not take up memory during compilation, and as program code starts at a lower address.Ĭ Hain-file is selected by pressing H. This file contains the program code and Pascal runtime library, and may be activated by typing its name at the console. When active, code is produced in memory and resides there ready to be activated by a Run command.Ĭom-file is selected by pressing C. where to put the code which results from the compilation. ![]() The three commands M, C, and H select the compiler mode, i.e. It also provides a helpful function to find runtime errors in programs compiled into object code files. The O command selects the following menu on which you may view and change some default values of the compiler. Upon exit from the program, control is re-transferred to TURBO Pascal, and you return to the TURBO prompt >. You may now enter the name of any program which will then load and run normally. It lets you run other programs from within TURBO Pascal, for example copying programs, word processors - in fact anything that you can run from your operating system. You will find an additional command on the main TURBO menu in the CP/M-80 version: eXecute.
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