Apple Integer BASIC tokenized file - Revision history

Dan Tobias: Add wikidata

2019-11-06T01:12:29Z

Add wikidata

Dan Tobias: /* Other links */

2019-11-05T05:08:18Z

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Dan Tobias: /* Other links */

2014-05-03T00:38:51Z

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Dan Tobias at 04:26, 6 February 2014

2014-02-06T04:26:16Z

Dan Tobias: /* Other links */

2013-09-10T23:14:12Z

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Dan Tobias: /* Format documentation */

2013-01-23T13:17:13Z

‎Format documentation

Dan Tobias at 01:53, 11 January 2013

2013-01-11T01:53:34Z

Dan Tobias at 00:33, 7 January 2013

2013-01-07T00:33:31Z

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Dan Tobias at 16:14, 6 January 2013

2013-01-06T16:14:41Z

Dan Tobias at 06:08, 24 December 2012

2012-12-24T06:08:50Z

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 |subcat2=Tokenized BASIC
 |released=1976
 }}

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 * [http://www.pagetable.com/?p=35 Apple I BASIC as a MAC OS X scripting langugage]
 * [http://jsmess.textfiles.com/messloader.html?module=apple2 JSMESS in-browser Apple II emulator]
 * [http://gizmodo.com/how-steve-wozniak-wrote-basic-for-the-original-apple-fr-1570573636/all How Steve Wozniak Wrote BASIC for the Original Apple From Scratch]
 [[Category:Apple II series]]

@@ Line 294: / Line 294: @@
 * [http://www.pagetable.com/?p=35 Apple I BASIC as a MAC OS X scripting langugage]
 * [http://jsmess.textfiles.com/messloader.html?module=apple2 JSMESS in-browser Apple II emulator]
 [[Category:Apple II series]]

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 |7F||127||IN#
 |}
 == Format documentation ==
 * [http://macgui.com/usenet/?group=1&start=14720&id=184603 Program code showing detailed token specs, in forum thread]
 == Other links ==

@@ Line 290: / Line 290: @@
 * [http://www.pagetable.com/?p=32 Reconstructing Apple I BASIC from a cassette]
 * [http://www.pagetable.com/?p=35 Apple I BASIC as a MAC OS X scripting langugage]
 [[Category:Apple II series]]

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 All BASIC keywords were assigned tokens, including command keywords which were only allowed in immediate mode on command lines, and couldn't actually appear in stored programs. Some keywords and symbols have multiple tokens for them, sometimes a large number of them; this appears to distinguish different contexts and meanings of the symbol for the assistance of the interpreter, but there doesn't seem to be any clear documentation of all of these distinctions. Some of them distinguish unary (one-argument) and binary (two-argument) versions of mathematical functions.
-The program file started with a two-byte little-endian integer giving the file length, and each line started with a one-byte line length (thus, lines could not exceed 255 tokenized bytes) and a two-byte little-endian integer for the line number.
+The program file started with a two-byte [[Endianness|little-endian]] integer giving the file length, and each line started with a one-byte line length (thus, lines could not exceed 255 tokenized bytes) and a two-byte little-endian integer for the line number.
 == Tokens ==

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 Program lines were separated with the byte 01. The null byte 00 was not used; this is something which might be noted as a way to distinguish Integer BASIC programs from S-C Assembler source files, also stored with file type "I", but which used nulls as line separators. (But note that both bytes 00 and 01 might appear as part of integer constants.)
-All BASIC keywords were assigned tokens in the 80-FF hex range, including command keywords which were only allowed in immediate mode on command lines, and couldn't actually appear in stored programs.
+All BASIC keywords were assigned tokens, including command keywords which were only allowed in immediate mode on command lines, and couldn't actually appear in stored programs.
 The program file started with a two-byte little-endian integer giving the file length, and each line started with a one-byte line length (thus, lines could not exceed 255 tokenized bytes) and a two-byte little-endian integer for the line number.

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 }}
-'''Apple Integer BASIC''', created by Apple co-founder Steve Wozniak, was first created as Apple I BASIC, for the Apple I hobbyist computer which was the first product of the newly-founded Apple company. On the Apple I, it had to be loaded from [[Audio Cassette|tape]]. When the Apple II came along the following year, it had a slightly improved version of this BASIC built into its ROM, called "Apple Integer BASIC" because it supported only integer numbers. Not long afterward, [[Applesoft BASIC tokenized file|Applesoft II Floating Point BASIC]] was licensed from Microsoft and made available to be loaded from tape or disk. Subsequent Apple models starting with the Apple II+ had Applesoft BASIC in ROM, so Integer BASIC went out of use.
+'''Apple Integer BASIC''', created by Apple co-founder Steve Wozniak, was first created as Apple I BASIC, for the Apple I hobbyist computer which was the first product of the newly-founded Apple company. On the Apple I, it had to be loaded from [[Audio Cassette|tape]]. When the Apple II came along the following year, it had a slightly improved version of this BASIC built into its ROM, called "Apple Integer BASIC" because it supported only integer numbers. Not long afterward, [[Applesoft BASIC tokenized file|Applesoft Floating Point BASIC]] was licensed from Microsoft and made available to be loaded from tape or disk. Subsequent Apple models starting with the Apple II+ had Applesoft BASIC in ROM, so Integer BASIC went out of use.
 Integer BASIC programs were stored in a tokenized format, in files which were designated in [[Apple II DOS|Apple DOS]] directories as type "I".