APPLESOFT BASIC MANUAL PDF

It is not a self-teaching manual, since APPLE provides a separate manual (the APPLE II BASIC Programming Manual) which will help you learn to program even. APPLESOFT II BASIC is APPLE’s very much extended BASIC language. BASIC has manual, since APPLE provides a separate manual (the APPLE.!!. BASIC. Apple® computer. The entire Applesoft BASIC® and Integer BASIC® vocabularies are included, along with all the DOS commands. The entries are presented.

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Applesoft BASIC Quick Reference

If you hold down Che repeat key while pressing a character key, the character will be repeated. In the example, the first two elements in the DATA statements must be numbers, and the third a string which may be a number.

In every case you will find extra zeros stored in the excess elements of the RECALLed appleesoft, but only in this last case will you find the zeros where you would expect them. As a result, if a user types commas in a response that does not begin manusl a quotation mark, mxnual commas are interpreted as response separators.

Now you’re ready to use these editing functions to save time when making changes or corrections to your prograin. Do not set the bottom margin of the window B higher than the top margin T, above.

Use reset Ctrl C return to escape. To return to normal mode, simply type TEXT.

Applesoft BASIC Reference

However, if issued while HGR2 is in effect, GR clears its usual screenful of memory, but leaves you looking at page 2 of low-resolution graphics and text.

TEXT Sets the screen to the usual non-graphics text mode, with 40 characters per line and 24 lines. You are not told in which line the error occurred. This is the “on” condition: Remember, X and Y must each be a number in the range through Now try the following program for comparing two numbers remember to type NEW first, to delete your last program: You may prefer to ignore these symbols applesot definitions until you encounter one in the text.

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A very long program which extends above memory location may be partially erased when you execute HGR, or applfsoft may “write” into your page 1 high-resolution graphics display. The array name A is distinct and separate from the simple variable A, and you could use both in the same program.

IN 4 Specifies the slot mnaual 1 through 7 of the peripheral which will be providing subsequent input for the computer. In the example, Scientific notation is used to print real precision numbers, and is formatted as follows: An attempt to use the ASC function on Ctrl results in the?

Note the use of REM statements for clarity. Remember, NX and Applesodt must each be a number in the range through 39, or the square will be off the screen and an error message will result.

There is nothing special about the N In this case. Do not set W to zero: The shape table’s manial location, whose address we have called S, must contain the number of shape definitions between and in hexadecimal.

So you can enter many extra characters by leaving out spaces when typing — LIST adds basc back. The return value for the function is placed in the floating point accumulator.

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What we need is a statement that provides a conditional branch to another statement. It sounds confusing at first, because the leftmost position is position zero, not 1. DEL a,-b ignored if a is not zero and if a is less than or equal to baskc program’s smallest line number. If numeric Input which is not a real, an appldsoft, a comma or a colon, the message? This is the area used by the Hasic command. In the example, is returned. This Is either total system RAM memory, or less if the user is reserving part of high memory for machine language routines or high-resolution screen buffers.

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Below is approximately how it will look on your TV display: When a number is converted to an integer. A line number is an integer from to Depending on the settings of the other switches, this can cause the display to change from high-resolution graphics page 2 to high-resolution graphics page 1, from low-resolution graphics page 2 to low-resolution graphics page 1, or from text page 2 to text page 1. DEL a,-b ignored if a is not zero and the only program baslc is line number zero.

For intermediate to advanced programmers, this complete guide details all the features of the Applesoft language. The command has no visible effect when used in high-resolution graphics mode. If expr is an arithmetic expression involving string expressions and string logical operators, expr is evaluated by comparing the alphabetic ranking of the string expressions as determined by the ASCII codes for the characters involved mnual Appendix K.