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system and palette handling was awkward. A table giving the numeric codes for the 27 system colors was printed over the built-in 3" disk drive casing on the 664 and later machines. Simple as it was, it did stand out however among other BASICs of the time by offering a timer-based software interrupt mechanism using the EVERY or AFTER commands; this offered a timed repeating or one-off call respectively to the BASIC line number of the user's choice.
348:
address(es) as parameter to the commands LOAD or SAVE would allow easy loading of raw uncompressed 16 KB screen pictures. CALLing another address gave a forced system reset (call 0), the famous "Press Any Key" (call &bb18) or for eliminating flicker in animation by allowing you to synchronize with the monitor's raster scan via "sync frame-flyback" (call &bd19); this was given its own dedicated command in Basic 1.1 - FRAME. With
22:
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Disk, tape, and file management were managed by BASIC itself, and were usually good enough for simple file management, with commands such as GET, PUT, ERASE, SAVE, MERGE, RUN, CAT, LOAD etc. In fact, during those years, the BASIC supplied as standard with most low-cost home computers also acted as a
434:
in order to access the full sound and graphics capabilities of their system. MSX, Sinclair
Spectrum and some others offered a similar, more or less complete command set for their sound and graphics capabilities. The only things going clearly beyond BASIC capabilities were the overscan modes used in
303:
It was a rather simple but powerful BASIC implementation by the standards of the day, featuring dedicated commands for handling graphics (such as DRAW, PLOT, INK, and PAPER in all versions; plus FILL in v1.1), even allowing the creation of multiple screens, windows, and the like, although the color
323:
computers, but none of those had such a complete built-in SOUND command. Many things, from selecting a particular channel or a combination of channels, setting envelopes, volume, pitch, noise, and so on could be done with a single SOUND command, with up to 7 parameters. Granted, especially complex
347:
Also available were some special commands for memory allocation and handling, like MEMORY and a parametric LOAD command, allowing, for example, to load a file containing "raw" picture data into video memory, causing it to be displayed, with a couple of BASIC instructions. Adding the right memory
324:
and/or low-level techniques could not be done with BASIC due to their requiring more precise or direct access to the hardware, e.g. especially complex music from trackers (including simulated chords using arpeggios, etc.), the playback of digitally sampled sounds as in the game
430:), which had no dedicated commands for graphics or sound, Locomotive BASIC allowed doing pretty much anything that was within the standard capabilities of the machine. This was not unimportant, as some other machines of the era required programmers to use
442:
or
Commodore 64 BASIC, which had various keyboard command shortcuts or specialized keys for choosing symbols or colors, Locomotive BASIC keywords were typed in full and the interpreter
243:
There are two versions of
Locomotive BASIC: 1.0 which only came with the CPC model 464, and 1.1 which shipped with all other versions. BASIC 1.1 was also shipped with the
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Also, when compared to other home computers of the time, the
Amstrad via Locomotive BASIC granted a relatively high level of control over the CPC sound chip, an
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Z80 addon for the BBC Micro. It is reported to have taken around 12 weeks to enhance the existing code, and was "very influenced" by
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them. However, there were abbreviations like "?" for "PRINT" and a few shortcuts. Programs could be saved onto
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A program in
Locomotive BASIC which draws a world map in Mode 1 (320x200px and 4 colours)
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games and demos, 27-color graphics modes, digital sound playback, and smooth scrolling.
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with 3 melodic channels and 1 noise channel. The same chip was also used on late-model
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267:, though adding additional functions to do things that would have required
352:, CALL provided an interface to assembly language programming from BASIC.
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394:. Statements consisting only of original research should be removed.
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Printing colour bars on the screen in Mode 0 (16 colours) with BASIC
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Development was based on existing work recently undertaken writing
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481:"You're NOT fired: The story of Amstrad's amazing CPC 464"
1365:
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320:
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series machines, as part of the included game cartridge.
343:
Loading a picture from floppy disk in
Locomotive BASIC
46:. Unsourced material may be challenged and removed.
1594:
551:
478:
299:Amstrad CPC colour palette with ink numbers
558:
544:
410:Learn how and when to remove this message
106:Learn how and when to remove this message
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294:
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224:and 1640. It was the main descendant of
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516:Command reference with code examples
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220:as a GEM application on the Amstrad
44:adding citations to reliable sources
15:
13:
14:
1624:
1613:BASIC programming language family
504:
479:Smith, Tony (12 February 2014).
364:
200:is a proprietary dialect of the
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20:
31:needs additional citations for
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1:
465:
7:
763:Data General Extended BASIC
458:and retrieved as binary or
390:the claims made and adding
274:
138:; 40 years ago
10:
1629:
511:Locomotive BASIC reference
212:(where it was built-in on
202:BASIC programming language
1487:Disk Extended Color BASIC
1401:
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1100:Open Programming Language
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1385:WinFBE, Visual FB Editor
768:Southampton BASIC System
527:Additional code examples
328:for example, and so on.
1537:MS BASIC for Macintosh
1321:Visual Basic (classic)
631:TI-BASIC (calculators)
570:programming language (
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300:
292:
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1424:Atari Microsoft BASIC
1267:Microsoft Small Basic
1234:Embedded Visual Basic
797:VSI BASIC for OpenVMS
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298:
290:
282:
1492:Extended Color BASIC
665:Rocky Mountain BASIC
660:HP Time-Shared BASIC
332:more or less simple
40:improve this article
1572:TI BASIC (TI 99/4A)
1462:Benton Harbor BASIC
680:Locomotive Software
426:'s built in BASIC (
356:Contemporary rivals
206:Locomotive Software
133:First appeared
120:
1608:BASIC interpreters
375:possibly contains
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301:
293:
285:
236:supplied with the
218:Locomotive BASIC-2
118:
55:"Locomotive BASIC"
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1450:BASIC Programming
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1396:
1393:
1392:
1336:Visual Basic .NET
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1142:
934:
933:
921:Super Expander 64
636:TI Extended BASIC
623:Texas Instruments
521:Command reference
446:, recognized and
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377:original research
315:, as well as the
269:assembly language
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90:
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1303:
1277:OpenOffice Basic
1157:
1156:
948:
947:
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721:North Star BASIC
688:Locomotive BASIC
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583:
566:Dialects of the
560:
553:
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537:
536:
498:
497:
495:
493:
476:
452:Compact Cassette
415:
408:
404:
401:
395:
392:inline citations
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334:operating system
245:Amstrad CPC Plus
216:) and the later
198:Locomotive Basic
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119:Locomotive BASIC
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1623:
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1482:Dartmouth BASIC
1472:Commodore BASIC
1414:Applesoft BASIC
1389:
1357:
1350:
1297:
1289:
1248:
1241:
1216:Microsoft Excel
1152:
1139:
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889:
880:
811:
777:
730:
697:
674:
652:Hewlett-Packard
646:
617:
600:TRS-80 BASICs (
596:Microsoft BASIC
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477:
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428:Commodore BASIC
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261:Acorn Computers
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37:
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12:
11:
5:
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1579:
1577:Turbo-BASIC XL
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1559:
1557:Sinclair BASIC
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1429:Atari ST BASIC
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1174:Chipmunk Basic
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916:Super Expander
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907:Graphics BASIC
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807:CALL/360:BASIC
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779:
778:
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749:Business Basic
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703:Microcomputers
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505:External links
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440:Sinclair BASIC
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1582:Vilnius BASIC
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1467:Chinese BASIC
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1370:Basic4android
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1238:WinWrap Basic
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995:Liberty BASIC
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911:Simons' BASIC
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736:Minicomputers
733:
727:
724:
722:
719:
717:
716:Integer BASIC
714:
712:
709:
708:
706:
704:
700:
694:
693:Mallard BASIC
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683:
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414:
411:
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393:
389:
385:
379:
378:
373:This section
371:
362:
361:
353:
351:
350:PEEK and POKE
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257:Mallard BASIC
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226:Mallard BASIC
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182:Mallard BASIC
180:
179:
176:
173:Influenced by
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99:
96:December 2009
88:
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78:
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71:
67:
64:
60:
57: –
56:
52:
51:Find sources:
45:
41:
35:
34:
29:This article
27:
23:
18:
17:
1497:Family BASIC
1452:(Atari 2600)
1449:
1409:Altair BASIC
1010:Mobile BASIC
926:YS MegaBasic
783:Time-sharing
757:Data General
687:
638:(aka XBasic)
606:Level II/III
531:Rosetta Code
523:(incomplete)
490:. Retrieved
486:The Register
484:
474:
437:
424:Commodore 64
421:
406:
397:
374:
346:
330:
313:ZX Spectrums
306:
302:
271:on the BBC.
254:
242:
197:
196:
102:
93:
83:
76:
69:
62:
50:
38:Please help
33:verification
30:
1603:Amstrad CPC
1477:Color BASIC
1419:Atari BASIC
1358:open source
1316:CA-Realizer
1308:Proprietary
1281:ScriptBasic
1249:open source
1184:LotusScript
1161:Proprietary
1095:Indic BASIC
1067:open source
1050:Turbo Basic
1040:Tiger-BASIC
985:FutureBASIC
952:Proprietary
881: [
843:Casio BASIC
828:Astro BASIC
802:SUPER BASIC
642:TI-BASIC 83
492:17 February
456:floppy disk
422:Unlike the
251:Development
238:Amstrad PCW
230:interpreter
210:Amstrad CPC
204:written by
168:Proprietary
1597:Categories
1567:SuperBASIC
1562:STOS BASIC
1547:QuickBASIC
1272:Mono-Basic
1194:PowerBASIC
1153:extensions
1110:SmallBASIC
1045:True BASIC
1030:SmileBASIC
1020:PowerBASIC
980:Beta BASIC
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1532:MSX BASIC
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68:
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1372:,
883:zh
755:,
604:,
483:.
336:.
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152:OS
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