What was the last CPU that did not have the x87 floating-point unit built in? The 2019 Stack Overflow Developer Survey Results Are InWere there 8086 coprocessors other than the 8087?What was the first CPU with exposed pipeline?What's the relationship between early 90s Pentium microprocessor and today's Intel designs?Is there any reason to chose ES, FS, or GS over the others in real mode?How do you put a 286 in Protected Mode?Why not use fractions instead of floating point?Which pre-IEEE computers had a single precision FPU and implemented double precision floats in software?How did the 8086 interface with the 8087 FPU coprocessor?How did people program for Consoles with multiple CPUs?What can an 8086 CPU do if an x87 floating-point coprocessor is attached to it?

What was the last CPU that did not have the x87 floating-point unit built in?

Can you cast a spell on someone in the Ethereal Plane, if you are on the Material Plane and have the True Seeing spell active?

Kerning for subscripts of sigma?

Geography at the pixel level

Why couldn't they take pictures of a closer black hole?

Why can I use a list index as an indexing variable in a for loop?

ELI5: Why they say that Israel would have been the fourth country to land a spacecraft on the Moon and why they call it low cost?

If my opponent casts Ultimate Price on my Phantasmal Bear, can I save it by casting Snap or Curfew?

How to notate time signature switching consistently every measure

Is Cinnamon a desktop environment or a window manager? (Or both?)

Is an up-to-date browser secure on an out-of-date OS?

Are spiders unable to hurt humans, especially very small spiders?

How to charge AirPods to keep battery healthy?

Why doesn't UInt have a toDouble()?

What is preventing me from simply constructing a hash that's lower than the current target?

Will it cause any balance problems to have PCs level up and gain the benefits of a long rest mid-fight?

Is it safe to harvest rainwater that fell on solar panels?

Getting crown tickets for Statue of Liberty

Can there be female White Walkers?

Why did Peik say, "I'm not an animal"?

Output the Arecibo Message

How do PCB vias affect signal quality?

Can we generate random numbers using irrational numbers like π and e?

Can an undergraduate be advised by a professor who is very far away?



What was the last CPU that did not have the x87 floating-point unit built in?



The 2019 Stack Overflow Developer Survey Results Are InWere there 8086 coprocessors other than the 8087?What was the first CPU with exposed pipeline?What's the relationship between early 90s Pentium microprocessor and today's Intel designs?Is there any reason to chose ES, FS, or GS over the others in real mode?How do you put a 286 in Protected Mode?Why not use fractions instead of floating point?Which pre-IEEE computers had a single precision FPU and implemented double precision floats in software?How did the 8086 interface with the 8087 FPU coprocessor?How did people program for Consoles with multiple CPUs?What can an 8086 CPU do if an x87 floating-point coprocessor is attached to it?










1















This Wikipedia page says the following:




Most x86 processors since the Intel 80486 have had these x87
instructions implemented in the main CPU




So the above quote means that some CPUs that were realeased after the Intel 80486 CPU did not have the x87 floating-point unit built in.



But what was the last CPU that did not have the x87 floating-point unit built in?










share|improve this question









New contributor




user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
























    1















    This Wikipedia page says the following:




    Most x86 processors since the Intel 80486 have had these x87
    instructions implemented in the main CPU




    So the above quote means that some CPUs that were realeased after the Intel 80486 CPU did not have the x87 floating-point unit built in.



    But what was the last CPU that did not have the x87 floating-point unit built in?










    share|improve this question









    New contributor




    user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      1












      1








      1








      This Wikipedia page says the following:




      Most x86 processors since the Intel 80486 have had these x87
      instructions implemented in the main CPU




      So the above quote means that some CPUs that were realeased after the Intel 80486 CPU did not have the x87 floating-point unit built in.



      But what was the last CPU that did not have the x87 floating-point unit built in?










      share|improve this question









      New contributor




      user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      This Wikipedia page says the following:




      Most x86 processors since the Intel 80486 have had these x87
      instructions implemented in the main CPU




      So the above quote means that some CPUs that were realeased after the Intel 80486 CPU did not have the x87 floating-point unit built in.



      But what was the last CPU that did not have the x87 floating-point unit built in?







      history intel floating-point cpu x86






      share|improve this question









      New contributor




      user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited 1 hour ago









      manassehkatz

      3,132625




      3,132625






      New contributor




      user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 2 hours ago









      user12280user12280

      232




      232




      New contributor




      user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      user12280 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.




















          2 Answers
          2






          active

          oldest

          votes


















          2














          All Intel x86 CPUs since the 80486 line have included floating point instructions, i.e. everything from the Pentium* onwards. So the last Intel processor to lack an on-board floating-point unit (FPU) was the 80486SX (and the embedded 80486GX).



          Other manufacturers, who made 486-compatible processors, continued making non-FPU chips, aiming for the budget market. These include Cyrix's Cx486SLC, and AMD's AM486SX. A 66MHz version of the latter, the Am486SX2-66, was released in 1994, a year after Intel had released its first Pentium processor.



          In order to compete with the Pentium range, third-party manufacturers effectively had to include an on-board FPU, so there were no "586" chips without floating-point instructions.



          I expect that the last manufactured x86 CPU that lacked floating-point instructions will have been an embedded chip such as the 80486GX.




          * for further reading, see the Pentium FDIV bug






          share|improve this answer























          • Yes, there are 586-class CPUs with no FPU.

            – Stephen Kitt
            39 mins ago


















          2














          As far as I’m aware, the last FPU-less x86-compatible CPU is the Vortex86SX, released in 2007 and still available now. This is a Pentium-class CPU, capable of running any Pentium code which doesn’t require an FPU.






          share|improve this answer

























            Your Answer








            StackExchange.ready(function()
            var channelOptions =
            tags: "".split(" "),
            id: "648"
            ;
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function()
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled)
            StackExchange.using("snippets", function()
            createEditor();
            );

            else
            createEditor();

            );

            function createEditor()
            StackExchange.prepareEditor(
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: false,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: null,
            bindNavPrevention: true,
            postfix: "",
            imageUploader:
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            ,
            noCode: true, onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            );



            );






            user12280 is a new contributor. Be nice, and check out our Code of Conduct.









            draft saved

            draft discarded


















            StackExchange.ready(
            function ()
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fretrocomputing.stackexchange.com%2fquestions%2f9660%2fwhat-was-the-last-cpu-that-did-not-have-the-x87-floating-point-unit-built-in%23new-answer', 'question_page');

            );

            Post as a guest















            Required, but never shown

























            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            2














            All Intel x86 CPUs since the 80486 line have included floating point instructions, i.e. everything from the Pentium* onwards. So the last Intel processor to lack an on-board floating-point unit (FPU) was the 80486SX (and the embedded 80486GX).



            Other manufacturers, who made 486-compatible processors, continued making non-FPU chips, aiming for the budget market. These include Cyrix's Cx486SLC, and AMD's AM486SX. A 66MHz version of the latter, the Am486SX2-66, was released in 1994, a year after Intel had released its first Pentium processor.



            In order to compete with the Pentium range, third-party manufacturers effectively had to include an on-board FPU, so there were no "586" chips without floating-point instructions.



            I expect that the last manufactured x86 CPU that lacked floating-point instructions will have been an embedded chip such as the 80486GX.




            * for further reading, see the Pentium FDIV bug






            share|improve this answer























            • Yes, there are 586-class CPUs with no FPU.

              – Stephen Kitt
              39 mins ago















            2














            All Intel x86 CPUs since the 80486 line have included floating point instructions, i.e. everything from the Pentium* onwards. So the last Intel processor to lack an on-board floating-point unit (FPU) was the 80486SX (and the embedded 80486GX).



            Other manufacturers, who made 486-compatible processors, continued making non-FPU chips, aiming for the budget market. These include Cyrix's Cx486SLC, and AMD's AM486SX. A 66MHz version of the latter, the Am486SX2-66, was released in 1994, a year after Intel had released its first Pentium processor.



            In order to compete with the Pentium range, third-party manufacturers effectively had to include an on-board FPU, so there were no "586" chips without floating-point instructions.



            I expect that the last manufactured x86 CPU that lacked floating-point instructions will have been an embedded chip such as the 80486GX.




            * for further reading, see the Pentium FDIV bug






            share|improve this answer























            • Yes, there are 586-class CPUs with no FPU.

              – Stephen Kitt
              39 mins ago













            2












            2








            2







            All Intel x86 CPUs since the 80486 line have included floating point instructions, i.e. everything from the Pentium* onwards. So the last Intel processor to lack an on-board floating-point unit (FPU) was the 80486SX (and the embedded 80486GX).



            Other manufacturers, who made 486-compatible processors, continued making non-FPU chips, aiming for the budget market. These include Cyrix's Cx486SLC, and AMD's AM486SX. A 66MHz version of the latter, the Am486SX2-66, was released in 1994, a year after Intel had released its first Pentium processor.



            In order to compete with the Pentium range, third-party manufacturers effectively had to include an on-board FPU, so there were no "586" chips without floating-point instructions.



            I expect that the last manufactured x86 CPU that lacked floating-point instructions will have been an embedded chip such as the 80486GX.




            * for further reading, see the Pentium FDIV bug






            share|improve this answer













            All Intel x86 CPUs since the 80486 line have included floating point instructions, i.e. everything from the Pentium* onwards. So the last Intel processor to lack an on-board floating-point unit (FPU) was the 80486SX (and the embedded 80486GX).



            Other manufacturers, who made 486-compatible processors, continued making non-FPU chips, aiming for the budget market. These include Cyrix's Cx486SLC, and AMD's AM486SX. A 66MHz version of the latter, the Am486SX2-66, was released in 1994, a year after Intel had released its first Pentium processor.



            In order to compete with the Pentium range, third-party manufacturers effectively had to include an on-board FPU, so there were no "586" chips without floating-point instructions.



            I expect that the last manufactured x86 CPU that lacked floating-point instructions will have been an embedded chip such as the 80486GX.




            * for further reading, see the Pentium FDIV bug







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered 1 hour ago









            KazKaz

            2,456942




            2,456942












            • Yes, there are 586-class CPUs with no FPU.

              – Stephen Kitt
              39 mins ago

















            • Yes, there are 586-class CPUs with no FPU.

              – Stephen Kitt
              39 mins ago
















            Yes, there are 586-class CPUs with no FPU.

            – Stephen Kitt
            39 mins ago





            Yes, there are 586-class CPUs with no FPU.

            – Stephen Kitt
            39 mins ago











            2














            As far as I’m aware, the last FPU-less x86-compatible CPU is the Vortex86SX, released in 2007 and still available now. This is a Pentium-class CPU, capable of running any Pentium code which doesn’t require an FPU.






            share|improve this answer





























              2














              As far as I’m aware, the last FPU-less x86-compatible CPU is the Vortex86SX, released in 2007 and still available now. This is a Pentium-class CPU, capable of running any Pentium code which doesn’t require an FPU.






              share|improve this answer



























                2












                2








                2







                As far as I’m aware, the last FPU-less x86-compatible CPU is the Vortex86SX, released in 2007 and still available now. This is a Pentium-class CPU, capable of running any Pentium code which doesn’t require an FPU.






                share|improve this answer















                As far as I’m aware, the last FPU-less x86-compatible CPU is the Vortex86SX, released in 2007 and still available now. This is a Pentium-class CPU, capable of running any Pentium code which doesn’t require an FPU.







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited 53 mins ago

























                answered 1 hour ago









                Stephen KittStephen Kitt

                40k8163173




                40k8163173




















                    user12280 is a new contributor. Be nice, and check out our Code of Conduct.









                    draft saved

                    draft discarded


















                    user12280 is a new contributor. Be nice, and check out our Code of Conduct.












                    user12280 is a new contributor. Be nice, and check out our Code of Conduct.











                    user12280 is a new contributor. Be nice, and check out our Code of Conduct.














                    Thanks for contributing an answer to Retrocomputing Stack Exchange!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid


                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.

                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function ()
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fretrocomputing.stackexchange.com%2fquestions%2f9660%2fwhat-was-the-last-cpu-that-did-not-have-the-x87-floating-point-unit-built-in%23new-answer', 'question_page');

                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    Oświęcim Innehåll Historia | Källor | Externa länkar | Navigeringsmeny50°2′18″N 19°13′17″Ö / 50.03833°N 19.22139°Ö / 50.03833; 19.2213950°2′18″N 19°13′17″Ö / 50.03833°N 19.22139°Ö / 50.03833; 19.221393089658Nordisk familjebok, AuschwitzInsidan tro och existensJewish Community i OświęcimAuschwitz Jewish Center: MuseumAuschwitz Jewish Center

                    Valle di Casies Indice Geografia fisica | Origini del nome | Storia | Società | Amministrazione | Sport | Note | Bibliografia | Voci correlate | Altri progetti | Collegamenti esterni | Menu di navigazione46°46′N 12°11′E / 46.766667°N 12.183333°E46.766667; 12.183333 (Valle di Casies)46°46′N 12°11′E / 46.766667°N 12.183333°E46.766667; 12.183333 (Valle di Casies)Sito istituzionaleAstat Censimento della popolazione 2011 - Determinazione della consistenza dei tre gruppi linguistici della Provincia Autonoma di Bolzano-Alto Adige - giugno 2012Numeri e fattiValle di CasiesDato IstatTabella dei gradi/giorno dei Comuni italiani raggruppati per Regione e Provincia26 agosto 1993, n. 412Heraldry of the World: GsiesStatistiche I.StatValCasies.comWikimedia CommonsWikimedia CommonsValle di CasiesSito ufficialeValle di CasiesMM14870458910042978-6

                    Typsetting diagram chases (with TikZ?) Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)How to define the default vertical distance between nodes?Draw edge on arcNumerical conditional within tikz keys?TikZ: Drawing an arc from an intersection to an intersectionDrawing rectilinear curves in Tikz, aka an Etch-a-Sketch drawingLine up nested tikz enviroments or how to get rid of themHow to place nodes in an absolute coordinate system in tikzCommutative diagram with curve connecting between nodesTikz with standalone: pinning tikz coordinates to page cmDrawing a Decision Diagram with Tikz and layout manager