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ぼくのかんがえたさいきょうCPU 2018 DATA

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April 19, 2018
Technology
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ぼくのかんがえたさいきょうCPU 2018 DATA

Avatar for houmei

houmei

April 19, 2018

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Transcript

  1. ΅͘ͷ͔Μ͕͑ͨ ͍͖͞ΐ͏CPU 2018.4.19 @houmei DATA 18೥4݄19೔໦༵೔

  2. ಺༰ • ΅͘ͷ͔Μ͕͍͖͑ͨ͞ΐ͏CPUͷղઆ • σʔλܗࣜʹ͍ͭͯ twitter : @houmei blog :

    ஛ԼੈքౝͷܭࢉػΑ΋΍·࿩ 18೥4݄19೔໦༵೔

  3. σʔλαΠζ ɾ̎ⁿόΠτ୯Ґ(n≧0)ɺ1όΠτ=8bit 7 0 15 31 63 bit 18೥4݄19೔໦༵೔

  4. ුಈখ਺఺ܕ ɾIEEE754-2008४ڌ 0 15 31 63 bit FP16 FP32 FP64

    127 FP128 18೥4݄19೔໦༵೔

  5. ेਐුಈখ਺఺ܕ ɾIEEE754-2008४ڌ 0 31 63 bit DP32 DP64 127 DP128

    18೥4݄19೔໦༵೔

  6. ͦͷଞͷσʔλܕ • BCDܕ(≠ेਐුಈখ਺఺ܕ) • จࣈྻ • ಛघͳුಈখ਺఺ܕʢػցֶश޲͚ʣ • Ҏ্͸ະݕ౼ 18೥4݄19೔໦༵೔

  7. Ϩʔϯ • σʔλશମΛ̎ⁿόΠτ୯ҐͰ౳෯ʹ෼ׂ͢Δ • ෼ׂͨ۠͠ը͸ϨʔϯͱݺͿ • Ϩʔϯ͕ͻͱ͔ͭ͠ͳ͍΋ͷ͸εΧϥͱݺͿ • Ϩʔϯ͸͢΂ͯಉ͡ܕ FP32

    FP32 FP32 FP32 lane 0 lane 1 lane 2 lane 3 0 31 63 95 127 18೥4݄19೔໦༵೔

  8. ܕ΍Ϩʔϯͷѻ͍ • ϩʔυετΞ໋ྩͰ͸σʔλͷαΠζͷΈѻ͏ • ϩʔυ͞Εͨ࣌఺Ͱ੔਺ܕͱͯ͠ѻ͏ • ුಈখ਺఺ܕ΍Ϩʔϯ਺͸໋ྩͰ໌ʹ༩͑Δ • σʔλαΠζ͕҉໧ͷ಺ʹมΘΔ͜ͱ͸ͳ͍ 18೥4݄19೔໦༵೔

  9. ܕΛѻ͏ࢉज़ԋࢉ໋ྩ • σʔλܕʹΑΓಈ࡞͕มΘΔͷ͸ࢉज़ԋࢉ໋ྩ • ුಈখ਺↔੔਺ͷܕม׵΋ࢉज़ԋࢉ໋ྩͰߦ͏ • ࿦ཧԋࢉ/Ϗοτԋࢉ͸ܕʹؔ܎ͳ͘࡞༻͢Δ • ৄࡉ͸ผ్ 18೥4݄19೔໦༵೔

  10. ɹ ͭͮ͘ ΅͘ͷ͔Μ͕͍͖͑ͨ͞ΐ͏CPU 18೥4݄19೔໦༵೔