发明授权
US5341321A Floating point arithmetic unit using modified Newton-Raphson technique
for division and square root
失效
使用改进的牛顿 - 拉夫逊技术进行划分和平方根的浮点运算单元
- 专利标题： Floating point arithmetic unit using modified Newton-Raphson technique for division and square root
- 专利标题（中）： 使用改进的牛顿 - 拉夫逊技术进行划分和平方根的浮点运算单元
-
申请号： US058164申请日： 1993-05-05
-
公开(公告)号： US5341321A公开(公告)日： 1994-08-23
- 发明人: Alan H. Karp , Peter Markstein , Dennis Brzezinski
- 申请人： Alan H. Karp , Peter Markstein , Dennis Brzezinski
- 申请人地址： CA Palo Alto
- 专利权人： Hewlett-Packard Company
- 当前专利权人： Hewlett-Packard Company
- 当前专利权人地址： CA Palo Alto
- 主分类号： G06F7/483
- IPC分类号： G06F7/483 ; G06F7/52 ; G06F7/527 ; G06F7/535 ; G06F7/552 ; G06F7/38
摘要：
A floating point processing system which uses a multiplier unit and an adder unit to perform floating point division and square root operations using both a conventional and a modified form of the Newton-Raphson method. The modified form of the Newton-Raphson method is used in place of the final iteration of the conventional Newton-Raphson so as to compute high precision approximated results with a substantial improvement in speed. The invention computes approximated results faster and simplifies hardware requirements because no multiplications of numbers of the precision of the result are required.
公开/授权文献
信息查询
