Digital Signal Processing Applications Using the ADSP 2100 by Analog Devices, Amy Mar

By Analog Devices, Amy Mar

This reference for the ADSP-2100 kin is an architectural and code-compatible set of 16-bit fixed-point DSP microprocessors that supply various degrees of characteristic integration. It deals quick, versatile mathematics for all computations together with the multiply-accumulate, prolonged dynamic variety in computations to reduce scaling, trunkation, and slipping, application sequencing with zero-overhead looping, twin info handle new release with round buffering and bit-reversed addressing, and three-bus Harvard structure allowing single-cycle fetch of either guideline and facts values.

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Extra resources for Digital Signal Processing Applications Using the ADSP 2100 Family, Volume I

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Shift Fy right by the difference between Ex and Ey, to align the radix points of Fx and Fy. 4. Subtract the fraction of the subtrahend from the fraction of the minuend to produce the fraction of the result. 5. Normalize the result. Note that if the exponents are equal, the exponent of the result can be set 43 3 Floating-Point Arithmetic to either, and no shifting of the fraction is necessary before the subtraction. 6. The routine reads the exponents of the input operands from AX0 and AY0 and the corresponding fractions from AX1and AY1.

8 FLOATING-POINT MULTIPLY/ACCUMULATE The floating-point multiply/accumulate routine computes the sum of N two-operand products. This value can also be found using repeated calls to the floating-point multiplication and addition routines, but the multiply/accumulate routine functions more efficiently because it removes overhead. The multiply/accumulate algorithm is as follows: 1. Multiply the first two operands and normalize the product. 2. Multiply the next two operands and normalize the product.

1969. The Art of Computer Programming: Volume 2 / Seminumerical Algorithms. Second Edition. Reading, MA: Addison-Wesley Publishing Company. IEEE Standard for Binary Floating-Point Arithmetic: ANSI/IEEE Std 754-1985. 1985. New York: The Institute of Electrical and Electronics Engineers, Inc.

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