Decimal Floating Point Adder
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This document describes a circuit that performs floating point multiplication. It takes two floating point number inputs x * 10^a and y * 10^b, multiplies their significands and adds their exponents, and outputs the result z * 10^c in floating point form. Key components include multiplexers to select significands and exponents, an adder to sum exponents, and conversion between decimal and digit-pulse representation.
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Decimal Floating Point Adder
- 1. Input 1 : x * 10 a Input 2 : y * 10 b Output : z * 10 c MUX(SP) MUX DPD TO DECIMAL CONVERTER Input 1(DPD) Input 2(DPD) x y a b Significand Exponent y X 0 x y 1 shift add sel X 0 y 1 exp sel x y MUX(SP) a - b a b MUX magnitude sign sel sel SHIFTER add shift No. of right shifts ADDER in out carry sum exp ROUNDING z c DECIMAL TO DPD CONVERSION Output(DPD)