Data processor having instructions for interpolating between mem

Details Data processor having instructions for interpolating between mem Data processor having instructions for interpolating between mem

1989-03-06

1992-12-08

Lee, Thomas C.

Boots, shoes, and leggings

364DIG1, 364258, 364723, 3642584, G06F 15353

Patent

active

051704757

ABSTRACT:
A data processor executes a table look-up and interpolate instruction which retrieves two adjacent table values from memory, interpolates between them and stores the result in a register. The same register contains, prior to the execution of the instruction, a value which is used both in calculating the address in memory from which the values are obtained and in performing the interpolation calculation. A major variant of the instruction involves obtaining the values to be interpolated between from registers, rather than from a table in memory. The combination of the two facilitates the performance of three-dimensional, or surface interpolations. It is also possible to select whether rounding is performed during the interpolation.

REFERENCES:
patent: 3725794 (1973-04-01), Asplund
patent: 3748447 (1973-07-01), Hajicek et al.
patent: 4001565 (1977-01-01), Kawai
patent: 4313173 (1982-01-01), Candy et al.
patent: 4338675 (1982-07-01), Palmer et al.
patent: 4402012 (1983-08-01), Knight
patent: 4901266 (1990-02-01), Takagi
patent: 5020014 (1991-05-01), Miller et al.

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