Ƙididdigar umarni a cikin guntu mai tuƙi na Intel 8087

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Tambayoyin da ake yawan yi

Mene ne tsarin yanke umarni a cikin Intel 8087?

Ƙididdigar umarni a cikin Intel 8087 shine tsarin da mai yin iyo-point coprocessor ke fassara opcodes da aka karɓa daga babban 8086/8088 CPU. 8087 yana sa ido kan bas ɗin koyarwa kuma yana gano umarnin ESC (tserewa) da ake nufi da ita musamman. Da zarar an gano shi, guntu yana yanke filayen opcode don tantance aikin da ake iyo-kamar ƙari, ninkawa, ko tushen murabba'i-da kuma aiwatar da hanyoyi zuwa tsarin tsarin microcode na ciki da ya dace.

Ta yaya coprocessor 8087 ke sadarwa tare da babban CPU?

8087 yana aiki a layi daya tare da 8086/8088 ta hanyar sa ido kan tsarin bas din. Lokacin da babban CPU ya ɗauko umarnin ESC, 8087 ya gane shi kuma ya ɗauki aikin aiwatar da aikin iyo. Ana sarrafa aiki tare ta hanyar layin matsayi da umarnin WAIT, wanda ke tabbatar da dakatarwar CPU har sai 8087 ya gama aiki. Wannan ƙirar da aka haɗe da sako-sako ya kasance mai ban sha'awa ga zamaninsa kuma ya yi tasiri ga gine-ginen ma'aikata na gaba.

Me yasa Intel 8087 har yanzu yana da dacewa don yin nazari a yau?

Fahimtar 8087 yana ba da ilimin tushe na yadda FPUs na zamani suka samo asali. Shirye-shiryen shigar da koyarwar sa, samfurin rijistar tushen tari, da gudummawar IEEE 754 da aka siffata kowane yanki na iyo x87 wanda ya biyo baya. Ga masu haɓakawa da masu sha'awar kayan aiki da ke bincikar ƙirar guntu, dandamali kamar Mewayz suna ba da nau'ikan nau'ikan nau'ikan nau'ikan 207 waɗanda ke rufe batutuwa daga ƙananan ƙididdiga zuwa ci gaban zamani - duk ana samun damar kawai $19 / mo — yana sa zurfin koyon fasaha mafi kusanci.

Waɗanne ayyuka na iyo-point 8087 za su iya yi? Intel 8087 yana goyan bayan ayyuka da yawa da suka haɗa da ƙari, ragi, ninkawa, rarrabawa, tushen murabba'i, da ayyukan wuce gona da iri kamar sine, cosine, da logarithms. Ya sarrafa nau'ikan bayanai da yawa-16-, 32-, da 64-bit integers, da kuma lambobin 32-, 64-, da 80-bit masu iyo. Wannan ƙwaƙƙwaran ya sa ya zama makawa don lissafin kimiyya, aikace-aikacen CAD, da lissafin kuɗi a lokacin farkon zamanin PC.

Duk Kayan Aikin Ku na Kasuwanci a Wuri Guda

Dakatar da juggling apps da yawa. Mewayz yana haɗa kayan aikin 207 don kawai $19 / watan - daga kaya zuwa HR, yin ajiya zuwa nazari. Babu katin kiredit da ake buƙata don farawa.

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