ieee754的標(biāo)準(zhǔn)，原英文版的！Twenty years ago anarchy threatened floating-point arithmetic. Over a dozen commercially significant arithmetics
boasted diverse wordsizes, precisions, rounding procedures and over/underflow behaviors, and more were in the
works. “Portable” software intended to reconcile that numerical diversity had become unbearably costly to
develop.
Thirteen years ago, when IEEE 754 became official, major microProcessor manufacturers had already adopted it
despite the challenge it posed to implementors. With unprecedented altruism, hardware designers had risen to its
challenge in the belief that they would ease and encourage a vast burgeoning of numerical software. They did
succeed to a considerable extent. Anyway, rounding anomalies that preoccupied all of us in the 1970s afflict only
CRAY X-MPs — J90s now.
標(biāo)簽：
ieee
754
標(biāo)準(zhǔn)
上傳時(shí)間：
2017-07-28
上傳用戶：894898248
microProcessors are getting smaller, cheaper and faster. Every day, it is easier to embed more functionality into a smaller space. Embedded processors have become pervasive, and as time goes on, more and more functions that were once implemented with analog circuitry or with electromechanical assemblies are being realized with microcontrollers, ADCs and DACs. Many of these assemblies that are being supplanted by the microProcessor are controlling dynamic processes, which is a good thing, because the microProcessor coupled with the right software is often the superior device.
標(biāo)簽：
嵌入式系統(tǒng)
控制理論
上傳時(shí)間：
2016-07-20
上傳用戶：kunger
