Ukwenziwa kweekhowudi kwi-Intel 8087 kwindawo edadayo

\u003ch2\u003e Ukufakwa kwekhowudi yomyalelo kwi-Intel 8087-point chip\u003c/h2\u003e \u003cp\u003eEli nqaku libonelela ngolwazi oluxabisekileyo kunye nolwazi ngesihloko salo, igalelo ekwabelaneni ngolwazi kunye nokuqonda.\u003c/p\u003e \u003ch3\u003eIzinto eziThathayo ezingundoqo\u003c/h3\u003e \u003cp\u003e Abafundi banokulindela ukufumana:\u003c/p\u003e \u003cul\u003e \u003cli\u003eUkuqonda nzulu umbandela\u003c/li\u003e \u003cli\u003eUsetyenziso olusebenzayo kunye nokufaneleka kwehlabathi lokwenyani\u003c/li\u003e \u003cli\u003e Iimbono zeNgcali kunye nohlalutyo\u003c/li\u003e \u003cli\u003eUlwazi oluhlaziyiweyo kuphuhliso lwangoku\u003c/li\u003e \u003c/ul\u003e \u003ch3\u003e ixabiso leSindululo\u003c/h3\u003e \u003cp\u003eUmgangatho womgangatho onje unceda ukwakha ulwazi kwaye ukhuthaze ukuthathwa kwezigqibo ezinolwazi kwiindawo ezahlukeneyo.\u003c/p\u003e

Imibuzo Ebuzwa Rhoqo

Yintoni i-decoding yomyalelo kwi-Intel 8087?

Ukufakwa kweekhowudi kwi-Intel 8087 yinkqubo apho i-coprocessor yeendawo ezidadayo itolika ii-opcodes ezifunyenwe kweyona 8086/8088 CPU. I-8087 ibeka iliso kwibhasi yomyalelo kwaye ichonge imiyalelo ye-ESC (escape) elungiselelwe yona ngokukodwa. Yakuba ibhaqiwe, itshiphu isusa iikhowudi kwiindawo ze-opcode ukumisela umsebenzi wendawo edadayo-njengokudibanisa, uphinda-phindo, okanye i-square root-kunye neendlela zokuphunyezwa kweendlela ezifanelekileyo ze-microcode zangaphakathi.

Isebenzisana njani i-8087 ne-CPU engundoqo?

I-8087 isebenza ngokunxuseneyo ne-8086/8088 ngokubeka esweni ngokungenziyo inkqubo yebhasi. Xa i-CPU engundoqo ithatha umyalelo we-ESC, i-8087 iyayibona kwaye ithatha ukuphunyezwa komsebenzi wendawo edadayo. Ulungelelwaniso luphathwa ngemigca yesimo kunye nomyalelo we-WAIT, oqinisekisa ukuba i-CPU inqumama de i-8087 igqibe ukuqhutyelwa phambili. Olu yilo ludityaniswe ngokukhululekileyo lwaba sisiseko sexesha lalo kwaye lwaba nefuthe kuyilo lwexesha elizayo lwe-coprocessor.

Kutheni i-Intel 8087 isabalulekile ekufundweni namhlanje?

Ukuqonda i-8087 kunika ulwazi olusisiseko malunga nendlela ii-FPUs zangoku zavela ngayo. Iskimu somyalelo wokufakwa kweekhowudi, imodeli yerejista esekwe kwisitaki, kunye ne-IEEE 754 igalelo yenze yonke iyunithi ye-x87 yendawo edadayo eyalandelayo. Kubaphuhlisi kunye nabathandi behardware abaphonononga uyilo lwetshiphu, amaqonga afana neMewayz abonelela ngeemodyuli ezingaphezu kwama-207 ezigubungela izihloko ukusuka kwikhompyuter ekumgangatho ophantsi ukuya kuphuhliso lwangoku-zonke zifikeleleka nge-19 yeedola kuphela / mo-ukwenza ukufunda okunzulu kobugcisa kufikeleleke ngakumbi.

Yeyiphi imisebenzi yeendawo ezidadayo enokwenziwa ngu-8087?

I-Intel 8087 ixhase uluhlu olubanzi lwemisebenzi equka ukudibanisa, ukuthabatha, uphinda-phindo, ulwahlulo, ingcambu, kunye nemisebenzi edlulayo efana nesine, i-cosine, kunye ne-logarithms. Yayiphethe iindidi ezininzi zedatha-i-16-, 32-, kunye ne-64-bit integers, kunye nama-32-, 64-, kunye nama-80-bit amanani amanqaku adadayo. Oku kuguquguquka kwenza ukuba kube yimfuneko kwikhompuyutha yezenzululwazi, usetyenziso lweCAD, kunye nokubala kwemali ngexesha lePC yokuqala.