发明名称 Decimal multiplication for superscaler processors
摘要 A method for decimal multiplication in a superscaler processor comprising: obtaining a first operand and a second operand; establishing a multiplier and an effective multiplicand from the first operand and the second operand; and generating and accumulating a partial product term every two cycles. The partial product terms are created from the effective multiplicand and multiples of the multiplier, where the effective multiplicand is stored in a first register file, the multiples being ones times the effective multiplier, two times the effective multiplier, four times the effective multiplier and eight times the effective multiplier and the partial product terms are added to an accumulation of previous partial product terms shifted one digit right such that a digit shifted off is preserved as a result digit.
申请公布号 US7167889(B2) 申请公布日期 2007.01.23
申请号 US20030436392 申请日期 2003.05.12
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 BUSABA FADI Y.;CARLOUGH STEVEN R.;KRYGOWSKI CHRISTOPHER A.;RELL, JR. JOHN G.
分类号 G06F7/523;G06F9/44 主分类号 G06F7/523
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