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basic 8 wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 background toggle background subsection 1 1 the problem 1 2 a solution 2 history 3 source code and copy protection 4 sample commands 5 references notes and citations toggle references notes and citations subsection 5 1 references 5 2 notes 5 3 citations 6 external links toggle the table of contents basic 8 add languages add links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia basic 8 or basic 8 0 the enhanced graphics system for the c128 was an american designed graphics system developed by walrusoft of gainesville florida 1 and published in 1986 by patech software of somerset new jersey the system was an extension of commodore s basic 7 0 for the commodore 128 computer basic 8 0 provided commands lacking in basic 7 0 to generate color graphics in the c128 s high resolution 80 column mode 640 200 pixels for rgb monitors background edit this section s style of writing may not reflect the encyclopedic tone used on wikipedia see wikipedia s guide to writing better articles for suggestions april 2017 learn how and when to remove this message the problem edit unlike its competitors such as the apple ii and atari 8 bit computers commodore s basic 2 0 programming language built into the commodore 64 c 64 lacks commands for generating sound and high resolution bit mapped graphics and responding to joysticks and game paddles instead awkward and slow basic peek and poke sequences or custom written assembly language routines are required to accomplish these tasks the lack of suitable basic commands led to the development of many third party language extensions such as simons basic greatly reducing the complication of writing games in basic upon its introduction in 1985 the commodore 128 c 128 had basic 7 0 a substantially more powerful version of basic 2 0 that includes commands for sound and graphics generation as well as joystick and paddle detection in addition to its more powerful basic the c 128 is equipped with dual video displays an 8563 video display controller vdc for generating an 80 column text display and an enhanced vic ii video interface controller for generating a 40 column text display like that of the c 64 when operated in its high resolution bit mapped display mode the vdc is capable of 640 200 pixel resolution twice that of the vic ii s 320 200 pixel resolution however the basic 7 0 commands that manipulate bit mapped graphics are only effective on the vic ii display if a programmer wishes to generate bit mapped graphics on the vdc display s he must resort to assembly language there are intractable difficulties in peeking and pokeing vdc registers and deal with the convoluted means by which the vdc is controlled a solution edit basic 8 0 available via floppy disk or rom provided many graphics commands that were competitive with the c128 s competitors in the high end 8 bit microcomputer market basic 8 0 was fully compatible with the various first party ram and video ram expansion chips and cartridges as well as mice and joysticks it also provided basic 3d graphics commands 2 along with a 188 page manual the software package included an example of a gui and a high res paint program basic paint both developed using basic 8 0 history edit run magazine published in february 1986 ultra hi res graphics an article describing the vdc s bitmapped mode and including a type in program written in 8502 assembly language that extended basic 7 0 s capabilities to support 640 200 high resolution graphics using the 8563 authors lou wallace and david darus later developed the ultra hi res utility into a commercial package what would become basic 8 0 the basic 8 package was developed by walrusoft s louis wallace and david darus with contributions from ken french printer drivers and indirectly from richard rylander who allowed his 3d solids commands for the commodore 64 originally published in dr dobb s journal to be converted to the c128 s hi res mode source code and copy protection edit source code of some of the basic 8 package was provided and the basic 8 0 disk lacked any sort of copy protection but this was before the open source initiative it was done as a courtesy instead of threatening legal action walrusoft simply asked users not to copy the software in the documentation it worked basic 8 0 became one of the best selling expansions for the c128 citation needed sample commands edit in basic 8 0 all added commands were prefaced with the mark which was not normally used in commodore basic to distinguish between the original and the new keywords the use of this character would allow the developer to extend basic 7 0 without having to re tokenize the commands as it was done on the c64 it was accomplished by trapping the syntax error generated by the command char displays a text string on a bitmap field similar to the basic 7 0 s low res char command mode switch between one of up to 32 high res screens paint fill a closed area with a color or a pattern pixel returns the color value of a pixel stash copies part or all of a screen for later usage walrus displays the walrusoft logo and the type size of video ram used 16 or 64 kb windowopen define part of the screen as a window for purposes of drawing references notes and citations edit references edit wallace louis r 1987 basic 8 manual somerset nj walrusoft patech software inc p 188 pp notes edit the vdc was programmed by writing commands to and reading status messages from a single control register and transferring data between system ram and the chip s dedicated video ram 16 or 64 kb depending on c128 version via a single data register following a relatively complex protocol a laborious and slow procedure compared with the straightforward use of the several discrete memory mapped control status registers the shared system video memory setup of the vic ii many programmers took advantage of a vdc control primitive buried deep within the part of the kernal that controlled the 80 column video display rather than writing their own primitive citations edit holroyd eric november 1989 digi talker a utility for the c 128 pdf the australian commodore and amiga review vol 6 no 11 saturday magazine pty ltd p 13 archived pdf from the original on 11 march 2019 walrusoft basic 8 retro commodore 28 march 2010 archived from the original on 20 september 2018 retrieved 11 march 2019 external links edit 270 kb text file from the project 64 documentation project v t e dialects of the basic programming language list classic microsoft microsoft basic trs 80 basics level i level ii iii thomson basic 1 0 texas instruments ti basic calculators ti extended basic aka xbasic ti basic 83 hewlett packard hp time shared basic rocky mountain basic hp basic locomotive software locomotive basic mallard basic microcomputers atom basic integer basic north star basic scelbal minicomputers basic 11 business basic b32 data general data general extended basic southampton basic system wang basic time sharing computers basic plus vsi basic for openvms super basic call 360 basic other alphabasic astro basic basicode bal casio basic cbasic pbasic sds basic tiny basic ubasic zbasic extenders basic 8 simons basic super expander super expander 64 ys megabasic procedure oriented proprietary amigabasic amos basic asic basicx beta basic futurebasic grass liberty basic lse mapbasic mobile basic owbasic powerbasic purebasic smilebasic tiger basic true basic turbo basic wordbasic free and open source basic 256 basic4gl bbc basic v darkbasic indic basic open programming language sdlbasic smallbasic qb64 wxbasic xbasic xblite yabasic with object extensions proprietary autoit chipmunk basic glbasic lotusscript morfik powerbasic vba vbscript vb 5 for microsoft excel 5 0 vsto vsta embedded visual basic free and open source blitzmax freebasic microsoft small basic mono basic openoffice basic visual basic net roslyn rad designers proprietary ca realizer visual basic classic ns basic rapidq visual basic net mercury xojo free and open source b4x basic4android basic4ppc gambas winfbe visual fb editor defunct altair basic applesoft basic apple business basic atari basic atari microsoft basic atari st basic basic a basic xe basic xl basic programming atari 2600 bbc basic benton harbor basic chinese basic commodore basic color basic dartmouth basic disk extended color basic extended color basic family basic gfa basic gw basic ibm basic jr basic macbasic mbasic msx basic ms basic for macintosh qbasic quickbasic s basic sinclair basic stos basic superbasic ti basic ti 99 4a turbo basic xl vilnius basic retrieved from https en wikipedia org w index php title basic_8 oldid 1373363753 categories basic extensions commodore 128 software hidden categories use dmy dates from march 2019 wikipedia articles with style issues from april 2017 all articles with style issues all articles with unsourced statements articles with unsourced statements from july 2014 this page was last edited on 5 september 2026 at 16 04 utc page was rendered with parsoid text is available under the creative commons attribution sharealike 4 0 license additional terms may apply by using this site you agree to the terms of use and privacy policy wikipedia is a registered trademark of the wikimedia foundation inc a non profit 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