ʻO ka wehewehe ʻōlelo aʻoaʻo ma ka Intel 8087 floating-point chip

\u003ch2\u003e Kuhikuhi 'ōlelo ma ka Intel 8087 floating-point chip\u003c/h2\u003e \u003cp\u003e Hāʻawi kēia ʻatikala i nā ʻike koʻikoʻi a me ka ʻike e pili ana i kāna kumuhana, e kōkua ana i ka kaʻana like ʻana a me ka ʻike.\u003c/p\u003e \u003ch3\u003eKuhi Lawelawe\u003c/h3\u003e \u003cp\u003e Hiki i ka poʻe heluhelu ke manaʻo e loaʻa:\u003c/p\u003e \u003cul\u003e \u003cli\u003e Hoʻomaopopo hohonu i ke kumuhana\u003c/li\u003e \u003cli\u003e Nā noi kūpono a me ka pili honua maoli\u003c/li\u003e \u003cli\u003eNā kuanaʻike loea a me ka nānā ʻana\u003c/li\u003e \u003cli\u003e ʻike hou ʻia e pili ana i nā hanana o kēia manawa\u003c/li\u003e \u003c/ul\u003e \u003ch3\u003e Manao Waiwai\u003c/h3\u003e \u003cp\u003e ʻO nā maʻiʻo kūpono e like me kēia e kōkua i ke kūkulu ʻana i ka ʻike a me ka paipai ʻana i ka hoʻoholo hoʻoholo ʻike ma nā wahi like ʻole.\u003c/p\u003e

Nīnau pinepine

He aha ke aʻo decoding ma ka Intel 8087?

ʻO ka wehewehe ʻōlelo aʻoaʻo ma ka Intel 8087 ke kaʻina hana e wehewehe ai ka coprocessor floating-point i nā opcode i loaʻa mai ka CPU 8086/8088 nui. Mālama ka 8087 i ke kaʻa aʻo a ʻike i nā ʻōlelo aʻoaʻo ESC (pakele) i kuhikuhi pono ʻia no ia. Ke ʻike ʻia, hoʻokaʻawale ka chip i nā kahua opcode no ka hoʻoholo ʻana i ka hana lana-e like me ka hoʻohui, hoʻonui, a i ʻole ke kumu huinahā—a me nā ala e hoʻokō ai i nā hana maʻamau microcode kūloko.

Pehea e kamaʻilio ai ka coprocessor 8087 me ka CPU nui?

Ke hana like nei ka 8087 me ka 8086/8088 ma ka nānā pono ʻana i ke kaʻa ʻōnaehana. Ke kiʻi ka CPU nui i kahi ʻōlelo aʻo ESC, ʻike ka 8087 iā ia a lawe i ka hoʻokō ʻana i ka hana floating-point. Hoʻohana ʻia ka synchronization ma o nā laina kūlana a me ke aʻo WAIT, e hōʻoiaʻiʻo ana i ka pau ʻana o ka CPU a hiki i ka hoʻopau ʻana o ka 8087. ʻO kēia ʻano hoʻolālā i hoʻohui ʻole ʻia he mea hoʻohaʻahaʻa loa ia no kona au a ua hoʻoikaika i ka hoʻolālā coprocessor e hiki mai ana.

No ke aha i pili ai ka Intel 8087 i kēia lā?

ʻO ka hoʻomaopopo ʻana i ka 8087 hāʻawi i ka ʻike kumu o ka ulu ʻana o nā FPU hou. ʻO kāna kumu hoʻopāpā aʻoaʻo, kumu hoʻohālike i hoʻopaʻa inoa ʻia, a me nā haʻawina IEEE 754 i hoʻohālikelike ʻia i kēlā me kēia x87 floating-point unit i ukali ʻia. No nā mea hoʻomohala a me nā mea ʻoluʻolu e ʻimi ana i ka hoʻolālā chip, hāʻawi nā paepae e like me Mewayz ma luna o 207 mau modula e uhi ana i nā kumuhana mai ka helu haʻahaʻa haʻahaʻa a hiki i ka hoʻomohala hou ʻana—hiki ke loaʻa nā mea āpau no ka $19/mo wale nō—no ka hoʻomaopopo ʻana i ka ʻenehana hohonu.

He aha nā hana lana i hiki i ka 8087 ke hana?

Kākoʻo ʻo Intel 8087 i nā ʻano hana like ʻole me ka hoʻohui, ka unuhi, ka hoʻonui, ka mahele, ke kumu huinahā, a me nā hana transcendental e like me sine, cosine, a me logarithms. Ua mālama ʻia nā ʻano ʻikepili he nui—16-, 32-, a me 64-bit integers, a me 32-, 64-, a me 80-bit floating-point numbers. He mea koʻikoʻi kēia no ka helu ʻepekema, nā noi CAD, a me nā helu kālā i ka wā PC mua.