Method and apparatus for approximating a signed value between tw

Details Method and apparatus for approximating a signed value between tw Method and apparatus for approximating a signed value between tw

1993-04-22

1995-03-28

Gordon, Paul P.

Boots, shoes, and leggings

395127, 364723, G06F 1572

Patent

active

054025338

ABSTRACT:
A method and apparatus for providing a correctly signed result of a linear interpolation (LIRP) function in a compute controlled display system. A correctly signed LIRP evaluation may be performed by simply adding a bias to each of the operands of the LIRP function and subtracting the bias to the result. Adding the bias is achieved by inverting the high (sign) bit of each of the operands. Subtracting the bias is achieved by inverting the high (sign) bit of the result.

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