BASIC Programming - Revision history

Matthias M.: Template:atarimania

2024-05-18T20:02:36Z

← Previous revision		Revision as of 20:02, 18 May 2024
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	==External links==		==External links==
			* {{atarimania\|id=20194}}
	* [http://www.atarimania.com/game-atari-2600-vcs-basic-programming_20194.html ''BASIC Programming''] at Atari Mania
	* {{webarchive \|url=https://web.archive.org/web/20040123023347/http://www.mindspring.com/~sidartha/Basic%20and%20Compumate%20Programming.htm \|date=January 23, 2004 \|title=Compumate FAQ:BASIC PROGRAMME EXAMPLES FOR ATARI 2600 (BASIC PROGRAMMING & CompuMate)}}		* {{webarchive \|url=https://web.archive.org/web/20040123023347/http://www.mindspring.com/~sidartha/Basic%20and%20Compumate%20Programming.htm \|date=January 23, 2004 \|title=Compumate FAQ:BASIC PROGRAMME EXAMPLES FOR ATARI 2600 (BASIC PROGRAMMING & CompuMate)}}

Elizium23: MOS:TENSE

2022-09-12T19:56:20Z

MOS:TENSE

← Previous revision		Revision as of 19:56, 12 September 2022
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	===Language features===		===Language features===

	VCS BASIC ~~supported~~ the following keywords:<ref>{{cite book\|title=BASIC Programming: Atari Game Program Instructions\|date=1979\|publisher=Atari, Inc.\|location=Sunnyvale, CA}}</ref>		VCS BASIC supports the following keywords:<ref>{{cite book\|title=BASIC Programming: Atari Game Program Instructions\|date=1979\|publisher=Atari, Inc.\|location=Sunnyvale, CA}}</ref>
	* Statements: <code>Print</code>		* Statements: <code>Print</code>
	* Structure: <code>Goto</code>, <code>If-Then-Else</code>		* Structure: <code>Goto</code>, <code>If-Then-Else</code>
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	Unlike most BASIC implementations of the time:		Unlike most BASIC implementations of the time:
	* VCS BASIC ~~used~~ ← instead of = for assignment; e.g., <code>A←A+1</code>.		* VCS BASIC uses ← instead of = for assignment; e.g., <code>A←A+1</code>.
	* Statements ~~could~~ be strung together on a line without a delimiter; e.g., <code>Note←APrintA</code>.		* Statements can be strung together on a line without a delimiter; e.g., <code>Note←APrintA</code>.
	* An <code>If</code> statement ~~could~~ be used as a function, returning a value: <code>{{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=monkey\|Else}}92</code>		* An <code>If</code> statement can be used as a function, returning a value: <code>{{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=monkey\|Else}}92</code>
	* <code>If</code> statements ~~could~~ take an <code>Else</code> clause.		* <code>If</code> statements can take an <code>Else</code> clause.

	Special variable names:		Special variable names:
	* <code>Note</code> ~~would sound~~ a musical note, assigned numbers from 0 to 7		* <code>Note</code> sounds a musical note, assigned numbers from 0 to 7
	** Numbers assigned to <code>Note</code> are implicitly assigned modulus 8, thus 8 becomes 0, 9 becomes 1, etc.		** Numbers assigned to <code>Note</code> are implicitly assigned modulus 8, thus 8 becomes 0, 9 becomes 1, etc.
	* <code>Hor1</code>, <code>Hor2</code> - the horizontal coordinate of one of two squares		* <code>Hor1</code>, <code>Hor2</code> - the horizontal coordinate of one of two squares
	* <code>Ver1</code>, <code>Ver2</code> - the vertical coordinate of one of two squares		* <code>Ver1</code>, <code>Ver2</code> - the vertical coordinate of one of two squares

	The language ~~supported~~ 26 unsigned integer variables A to Z. VCS BASIC ~~only supported~~ integers from 0 to 99. Math ~~would~~ wrap, so 99+1 ~~would become~~ 0, 99+2 ~~would become~~ 1, etc.		The language supports 26 unsigned integer variables A to Z. VCS BASIC supports integers from 0 to 99. Math operations wrap, so 99+1 becomes 0, 99+2 becomes 1, etc.

	====Sample code====		====Sample code====
	The following example of a ''[[Pong]]'' game ~~was~~ provided.		The following example of a ''[[Pong]]'' game is provided.
	{{pre\|		{{pre\|
	1 Hor2←2+Key		1 Hor2←2+Key

InternetArchiveBot: Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.8

2022-07-10T09:03:18Z

Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.8

← Previous revision		Revision as of 09:03, 10 July 2022
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	* '''Graphics''' contains two colored squares that can be manipulated by the program.		* '''Graphics''' contains two colored squares that can be manipulated by the program.

	Input is given through two Atari keypad controllers, which came with special overlays to show how to type the different commands and letters.<ref>[https://atariage.com/controller_page.html?ControllerID=4&SystemID=2600 Controllers - Atari Keypad],{{~~dead~~ ~~link~~\|date=June ~~2022~~}} Atari KeypadSystem: Atari 2600, Model Number: CX50, ''Sold in pairs, functionally identical to the Kid's Controller and the Video Touch Pad. Included overlays with commands, meant to be used with Basic Programming.''</ref> Programs are restricted to 64 characters in size and normally 9 lines of code, limiting the programs that can be written (users can disable all windows except Program and keep selecting "New Line" until 11 lines of code are present).		Input is given through two Atari keypad controllers, which came with special overlays to show how to type the different commands and letters.<ref>[https://atariage.com/controller_page.html?ControllerID=4&SystemID=2600 Controllers - Atari Keypad], {{Webarchive\|url=https://web.archive.org/web/20150615042830/https://atariage.com/controller_page.html?ControllerID=4&SystemID=2600 \|date=15 June 2015 }} Atari KeypadSystem: Atari 2600, Model Number: CX50, ''Sold in pairs, functionally identical to the Kid's Controller and the Video Touch Pad. Included overlays with commands, meant to be used with Basic Programming.''</ref> Programs are restricted to 64 characters in size and normally 9 lines of code, limiting the programs that can be written (users can disable all windows except Program and keep selecting "New Line" until 11 lines of code are present).

	===Language features===		===Language features===

Mikeblas: mark dead link

2022-06-29T09:06:15Z

mark dead link

← Previous revision		Revision as of 09:06, 29 June 2022
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	* '''Graphics''' contains two colored squares that can be manipulated by the program.		* '''Graphics''' contains two colored squares that can be manipulated by the program.

	Input is given through two Atari keypad controllers, which came with special overlays to show how to type the different commands and letters.<ref>[https://atariage.com/controller_page.html?ControllerID=4&SystemID=2600 Controllers - Atari Keypad], Atari KeypadSystem: Atari 2600, Model Number: CX50, ''Sold in pairs, functionally identical to the Kid's Controller and the Video Touch Pad. Included overlays with commands, meant to be used with Basic Programming.''</ref> Programs are restricted to 64 characters in size and normally 9 lines of code, limiting the programs that can be written (users can disable all windows except Program and keep selecting "New Line" until 11 lines of code are present).		Input is given through two Atari keypad controllers, which came with special overlays to show how to type the different commands and letters.<ref>[https://atariage.com/controller_page.html?ControllerID=4&SystemID=2600 Controllers - Atari Keypad],{{dead link\|date=June 2022}} Atari KeypadSystem: Atari 2600, Model Number: CX50, ''Sold in pairs, functionally identical to the Kid's Controller and the Video Touch Pad. Included overlays with commands, meant to be used with Basic Programming.''</ref> Programs are restricted to 64 characters in size and normally 9 lines of code, limiting the programs that can be written (users can disable all windows except Program and keep selecting "New Line" until 11 lines of code are present).

	===Language features===		===Language features===

Patriot62371 at 19:19, 20 December 2021

2021-12-20T19:19:51Z

← Previous revision		Revision as of 19:19, 20 December 2021
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	}}		}}

	==See also==
	==See also==		==See also==
	{{Portal\|Video games}}		{{Portal\|Video games}}

Patriot62371: /* See also */

2021-12-20T19:19:34Z

Cedar101: /* Language features */

2021-11-03T08:06:21Z

Language features

← Previous revision		Revision as of 08:06, 3 November 2021
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	* VCS BASIC used ← instead of = for assignment; e.g., <code>A←A+1</code>.		* VCS BASIC used ← instead of = for assignment; e.g., <code>A←A+1</code>.
	* Statements could be strung together on a line without a delimiter; e.g., <code>Note←APrintA</code>.		* Statements could be strung together on a line without a delimiter; e.g., <code>Note←APrintA</code>.
	* An <code>If</code> statement could be used as a function, returning a value: <code>{{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=~~cbmbas~~\|~~Else92~~}}</code>		* An <code>If</code> statement could be used as a function, returning a value: <code>{{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=monkey\|Else}}92</code>
	* <code>If</code> statements could take an <code>Else</code> clause.		* <code>If</code> statements could take an <code>Else</code> clause.

Cedar101: /* Sample code */

2021-11-03T08:05:49Z

Sample code

← Previous revision		Revision as of 08:05, 3 November 2021
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	2 {{codett\|2=cbmbas\|IfVer1>90ThenVer1←88}}		2 {{codett\|2=cbmbas\|IfVer1>90ThenVer1←88}}
	3 {{codett\|2=cbmbas\|IfHit}}{{codett\|2=cbmbas\|ThenVer1←9}}		3 {{codett\|2=cbmbas\|IfHit}}{{codett\|2=cbmbas\|ThenVer1←9}}
	4 {{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=~~cbmbas~~\|~~Else92~~}}		4 {{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=monkey\|Else}}92
	5 Hor1←Hor1+7		5 Hor1←Hor1+7
	6 {{codett\|2=cbmbas\|Goto1}}		6 {{codett\|2=cbmbas\|Goto1}}

Cedar101: /* Language features */ {{codett|2=cbmbas|}}

2021-11-03T08:02:54Z

Language features: {{codett|2=cbmbas|}}

← Previous revision		Revision as of 08:02, 3 November 2021
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	* Graphics: <code>Clear</code>		* Graphics: <code>Clear</code>
	* Functions: <code>Hit</code>, <code>Key</code>		* Functions: <code>Hit</code>, <code>Key</code>
	* Math: + - × ÷ ~~<code>~~Mod</code>		* Math: <code>+ - × ÷ Mod</code>
	* Relational operators: < > =		* Relational operators: <code>< > =</code>

	Unlike most BASIC implementations of the time:		Unlike most BASIC implementations of the time:
	* VCS BASIC used ← instead of = for assignment; e.g., <code>A←A+1</code>.		* VCS BASIC used ← instead of = for assignment; e.g., <code>A←A+1</code>.
	* Statements could be strung together on a line without a delimiter; e.g., <code>Note←APrintA</code>.		* Statements could be strung together on a line without a delimiter; e.g., <code>Note←APrintA</code>.
	* An <code>If</code> statement could be used as a function, returning a value: <code>Ver1←Ver1+~~IfVer1Mod2Then8Else92~~</code>.		* An <code>If</code> statement could be used as a function, returning a value: <code>{{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=cbmbas\|Else92}}</code>
	* <code>If</code> statements could take an <code>Else</code> clause.		* <code>If</code> statements could take an <code>Else</code> clause.

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	====Sample code====		====Sample code====
	The following example of a ''[[Pong]]'' game was provided.		The following example of a ''[[Pong]]'' game was provided.
	<pre>1 Hor2←2+Key		{{pre\|
			1 Hor2←2+Key
	2 IfVer1>90ThenVer1←88		2 {{codett\|2=cbmbas\|IfVer1>90ThenVer1←88}}
			3 {{codett\|2=cbmbas\|IfHit}}{{codett\|2=cbmbas\|ThenVer1←9}}
	3 IfHitThenVer1←9
			4 {{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=cbmbas\|Else92}}
	4 Ver1←Ver1+IfVer1Mod2Then8Else92
	5 Hor1←Hor1+7		5 Hor1←Hor1+7
	6 Goto1		6 {{codett\|2=cbmbas\|Goto1}}
			}}
	</pre>

	==See also==		==See also==

Maxeto0910: Removed double link in infobox.

2021-07-07T21:43:12Z

Removed double link in infobox.

← Previous revision		Revision as of 21:43, 7 July 2021
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	\|image = BASIC Programming Cover Art.jpg		\|image = BASIC Programming Cover Art.jpg
	\|developer = [[Atari, Inc.]]		\|developer = [[Atari, Inc.]]
	\|publisher = [[Atari, Inc.]]		\|publisher = Atari, Inc.
	\|designer = [[Warren Robinett]]<ref>[https://dadgum.com/halcyon/BOOK/ROBINETT.HTM Interview:Warren Robinett], By James Hague, ''Halcyon Days'', "How long did it take to write?...I had ''Adventure'' sort of done in the fall of 1978, but I wasn't satisfied. I sort of put it on the shelf for the next six months while I did the ''BASIC Programming'' cartridge, and finished them both simultaneously, in June 1979."</ref>		\|designer = [[Warren Robinett]]<ref>[https://dadgum.com/halcyon/BOOK/ROBINETT.HTM Interview:Warren Robinett], By James Hague, ''Halcyon Days'', "How long did it take to write?...I had ''Adventure'' sort of done in the fall of 1978, but I wasn't satisfied. I sort of put it on the shelf for the next six months while I did the ''BASIC Programming'' cartridge, and finished them both simultaneously, in June 1979."</ref>
	\|released = 1979		\|released = 1979

← Previous revision		Revision as of 19:19, 20 December 2021
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	==See also==		==See also==
			==See also==
			{{Portal\|Video games}}
			*[[List of Atari 2600 games]]
	* [[CompuMate\|Spectravideo CompuMate]]		* [[CompuMate\|Spectravideo CompuMate]]
	* [[Family BASIC]]		* [[Family BASIC]]

← Previous revision		Revision as of 08:05, 3 November 2021
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	2 {{codett\|2=cbmbas\|IfVer1>90ThenVer1←88}}		2 {{codett\|2=cbmbas\|IfVer1>90ThenVer1←88}}
	3 {{codett\|2=cbmbas\|IfHit}}{{codett\|2=cbmbas\|ThenVer1←9}}		3 {{codett\|2=cbmbas\|IfHit}}{{codett\|2=cbmbas\|ThenVer1←9}}
	4 {{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=~~cbmbas~~\|~~Else92~~}}		4 {{codett\|2=cbmbas\|Ver1←Ver1+IfVer1}}[[Modulo operation\|Mod]]2{{codett\|2=cbmbas\|Then8}}{{codett\|2=monkey\|Else}}92
	5 Hor1←Hor1+7		5 Hor1←Hor1+7
	6 {{codett\|2=cbmbas\|Goto1}}		6 {{codett\|2=cbmbas\|Goto1}}