发明名称 |
Sign generation system for a carry save adder |
摘要 |
A sign generation system having a plurality of carry save adders. When adding a sum and a carry generated by a carry save adder in a next stage carry save adder, a full sum of two-bit sign fields adjacent to data fields of the sum and the carry is calculated. The resulting two-bit sign is combined with a constant to generate an exact sign, decreasing number of transferred sign bits.
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申请公布号 |
US4644491(A) |
申请公布日期 |
1987.02.17 |
申请号 |
US19840653053 |
申请日期 |
1984.09.21 |
申请人 |
HITACHI, LTD.;HITACHI MICROCOMPUTER ENGINEERING LTD. |
发明人 |
OOKAWA, TOMOYUKI;MURAYAMA, HIROSHI |
分类号 |
G06F7/505;G06F7/50;G06F7/52;G06F7/53;G06F7/533;(IPC1-7):G06F7/38 |
主分类号 |
G06F7/505 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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