有符号乘法器与无符号乘法器在硬件实现上的区别？

elhw2 · 发表于 2008-6-4 01:01:05

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有符号乘法器与无符号乘法器在硬件实现上的区别是什么？

谢谢

evn · 发表于 2008-6-4 04:20:35

if using two's complement to represent the signed number, there is absolutely no difference between signed and unsigned multiplier in hardware implementation. For example, shift-addition or booth's.

if using MSB to represent the signed number, an XOR gate is need only for the MSB of the output, and the rest of the circuit is the same as unsigned multiplier.

yuhaiqun2008 · 发表于 2009-1-21 10:21:16

very good

ineedpower · 发表于 2009-1-21 11:19:59

en bucuo ~~~~

mvp1999 · 发表于 2009-1-21 12:04:19

学习了

wolfkin · 发表于 2009-1-22 13:33:28

The signed multiplication is the best choice, it is more difficult for unsigned than signed.

jeketai · 发表于 2020-11-20 23:20:07

额，不是吧

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有符号乘法器与无符号乘法器在硬件实现上的区别？

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