Locomotive BASIC - Revision history

Arnoldemu: /* SAVE "filename" [,filetype][,paramter1,parameter2,parameter3] */

2025-10-02T13:05:04Z

SAVE "filename" [,filetype][,paramter1,parameter2,parameter3]

← Older revision		Revision as of 13:05, 2 October 2025
Line 825:		Line 825:
	</pre>		</pre>

	==== <code>SAVE "filename" [,filetype][,~~paramter1~~,parameter2,parameter3]</code> ====		==== <code>SAVE "filename" [,filetype][,parameter1,parameter2,parameter3]</code> ====
	: Command saves the current BASIC program / content from RAM onto a storage medium (e.g. Tape, Disc)		: Command saves the current BASIC program / content from RAM onto a storage medium (e.g. Tape, Disc)

Arnoldemu: /* CAT */

2025-10-02T13:04:35Z

CAT

← Older revision		Revision as of 13:04, 2 October 2025
Line 111:		Line 111:

	==== <code>CAT</code> ====		==== <code>CAT</code> ====
	: Displays the names of the files on the tape or disc. Tape files are displayed in the order they are encountered. Disc files are sorted alphabetically by ~~ACSII~~ code. Only files matching the current user are displayed. Files marked as system are not displayed.		: Displays the names of the files on the tape or disc. Tape files are displayed in the order they are encountered. Disc files are sorted alphabetically by ASCII code. Only files matching the current user are displayed. Files marked as system are not displayed.
	: Examples:		: Examples:
	<pre>CAT :REM lists all disc files in alpha-numeric (ASCII) order</pre>		<pre>CAT :REM lists all disc files in alpha-numeric (ASCII) order</pre>

Arnoldemu: /* OPENOUT ‹filename› */

2025-10-02T13:03:28Z

OPENOUT ‹filename›

← Older revision		Revision as of 13:03, 2 October 2025
Line 659:		Line 659:

	==== <code>OPENOUT ‹filename›</code> ====		==== <code>OPENOUT ‹filename›</code> ====
	: Opens the specified data file for writing. It writes an ASCII file. (~~To close writing use the~~ command <code>CLOSEOUT</code>.)		: Opens the specified data file for writing. It writes an ASCII file. (The command <code>CLOSEOUT</code> finishes writing to the file and closes it cleanly.)
	: Write to the file with PRINT#9.		: Write to the file with PRINT#9.
	: No file is likely to be written until enough data is written (e.g. 2KB) or the file has at least 1 byte written and CLOSEOUT is used.		: No file is likely to be written until enough data is written (e.g. 2KB) or the file has at least 1 byte written and CLOSEOUT is used.

Arnoldemu: /* OPENOUT ‹filename› */

2025-10-02T13:02:26Z

OPENOUT ‹filename›

← Older revision		Revision as of 13:02, 2 October 2025
Line 660:		Line 660:
	==== <code>OPENOUT ‹filename›</code> ====		==== <code>OPENOUT ‹filename›</code> ====
	: Opens the specified data file for writing. It writes an ASCII file. (To close writing use the command <code>CLOSEOUT</code>.)		: Opens the specified data file for writing. It writes an ASCII file. (To close writing use the command <code>CLOSEOUT</code>.)
			: Write to the file with PRINT#9.
	Write to the file with PRINT#9.		: No file is likely to be written until enough data is written (e.g. 2KB) or the file has at least 1 byte written and CLOSEOUT is used.
			: The following code pattern can be used to set MEMORY and lower HIMEM lower than would normally be allowed. This is often seen in disc loaders. This doesn't cause any file to be written:
	~~NOTE~~: No file is likely to be written until enough data is written (e.g. 2KB) or the file has at least 1 byte written and CLOSEOUT is used.

	~~NOTE~~: The following pattern can be used to set MEMORY and lower HIMEM lower than would normally be allowed. This doesn't cause any file to be written:

	OPENOUT"<filename>		OPENOUT"<filename>

Arnoldemu: /* OPENOUT ‹filename› */

2025-10-02T13:01:37Z

OPENOUT ‹filename›

← Older revision		Revision as of 13:01, 2 October 2025
Line 659:		Line 659:

	==== <code>OPENOUT ‹filename›</code> ====		==== <code>OPENOUT ‹filename›</code> ====
	: Opens the specified data file for writing. It writes an ASCII file. (To close writing use the command CLOSEOUT.)		: Opens the specified data file for writing. It writes an ASCII file. (To close writing use the command <code>CLOSEOUT</code>.)

			Write to the file with PRINT#9.

	NOTE: No file is likely to be written until enough data is written (e.g. 2KB) or the file has at least 1 byte written and CLOSEOUT is used.		NOTE: No file is likely to be written until enough data is written (e.g. 2KB) or the file has at least 1 byte written and CLOSEOUT is used.

Arnoldemu: /* OPENOUT ‹filename› */

2025-10-02T13:00:47Z

OPENOUT ‹filename›

← Older revision		Revision as of 13:00, 2 October 2025
Line 659:		Line 659:

	==== <code>OPENOUT ‹filename›</code> ====		==== <code>OPENOUT ‹filename›</code> ====
	: Opens the specified data file for writing. It writes an ASCII file. (To close writing use the command ~~closein~~.)		: Opens the specified data file for writing. It writes an ASCII file. (To close writing use the command CLOSEOUT.)

			NOTE: No file is likely to be written until enough data is written (e.g. 2KB) or the file has at least 1 byte written and CLOSEOUT is used.

			NOTE: The following pattern can be used to set MEMORY and lower HIMEM lower than would normally be allowed. This doesn't cause any file to be written:

			OPENOUT"<filename>
			MEMORY address
			CLOSEOUT

	==== <code>ORIGIN x,y[,l,r,t,b]</code> ====		==== <code>ORIGIN x,y[,l,r,t,b]</code> ====

Esesci: add max variable length information

2025-01-14T19:47:17Z

add max variable length information

← Older revision		Revision as of 19:47, 14 January 2025
Line 51:		Line 51:

	== Variables ==		== Variables ==
			Many contemporary BASIC interpreters only supported the first few characters of a variable name as a discriminator. For example <code>WATER$</code> and <code>WALDO$</code> would refer to the same variable on a Commodore 64 or Apple II. But Locomotive BASIC allowed variable names up to 40 characters in length, so <code>THEQUICKBROWNFOXJUMPEDOVERTHELAZYDOGFAST$</code> and <code>THEQUICKBROWNFOXJUMPEDOVERTHELAZYDOGFATS$</code> could be use as separate variables.

	=== Real (Floating Point) Numbers ===		=== Real (Floating Point) Numbers ===

CPM User: /* STR$ () */

2024-12-26T07:26:38Z

STR$ ()

← Older revision		Revision as of 07:26, 26 December 2024
Line 2,064:		Line 2,064:
	20 b=&x1111:REM 15 binary		20 b=&x1111:REM 15 binary
	30 c$="***"		30 c$="***"
	40 PRINT c$+SR$(a+b)+c$		40 PRINT c$+STR$(a+b)+c$
	run		run
	* 270*		* 270*
	</pre>		</pre>

	==== <code><big>STRING$ (<length>,<character specifier>)</big></code> ====		==== <code><big>STRING$ (<length>,<character specifier>)</big></code> ====
	: ''BASIC 1.0 & 1.1''		: ''BASIC 1.0 & 1.1''

Phi2x: /* History */

2024-11-15T10:25:49Z

History

← Older revision		Revision as of 10:25, 15 November 2024
Line 28:		Line 28:
	The CPC implementation of Locomotive BASIC was developed directly from [[Locomotive Software]]'s existing Z80 BASIC. The existence of this is cited as one of the reasons Locomotive requested that [[Amstrad]] change the CPC's processor from a 6502 to a [[Z80]].		The CPC implementation of Locomotive BASIC was developed directly from [[Locomotive Software]]'s existing Z80 BASIC. The existence of this is cited as one of the reasons Locomotive requested that [[Amstrad]] change the CPC's processor from a 6502 to a [[Z80]].

	The 464 (and ~~some~~ 472) shipped with BASIC 1.0 on ROM.		The 464 and Spanish 472 shipped with BASIC 1.0 on ROM.

	The language was revised and debugged for the 472, 664, 6128 and Plus machines to become BASIC 1.1. Changes were minor but significant for the programmer, and included:		The language was revised and debugged for the 472 (British), 664, 6128 and Plus machines to become BASIC 1.1. Changes were minor but significant for the programmer, and included:

	* DEC$ bug removed (in BASIC 1.0, it required two opening brackets and was undocumented)		* DEC$ bug removed (in BASIC 1.0, it required two opening brackets and was undocumented)

Phi2x: /* History */

2024-11-15T10:22:16Z

History

← Older revision		Revision as of 10:22, 15 November 2024
Line 28:		Line 28:
	The CPC implementation of Locomotive BASIC was developed directly from [[Locomotive Software]]'s existing Z80 BASIC. The existence of this is cited as one of the reasons Locomotive requested that [[Amstrad]] change the CPC's processor from a 6502 to a [[Z80]].		The CPC implementation of Locomotive BASIC was developed directly from [[Locomotive Software]]'s existing Z80 BASIC. The existence of this is cited as one of the reasons Locomotive requested that [[Amstrad]] change the CPC's processor from a 6502 to a [[Z80]].

	The 464 shipped with BASIC 1.0 on ROM.		The 464 (and some 472) shipped with BASIC 1.0 on ROM.

	The language was revised and debugged for the 472, 664, 6128 and Plus machines to become BASIC 1.1. Changes were minor but significant for the programmer, and included:		The language was revised and debugged for the 472, 664, 6128 and Plus machines to become BASIC 1.1. Changes were minor but significant for the programmer, and included: