发明名称 MULTIPLIER FOR PERFORMING 3D GRAPHICS INTERPOLATIONS
摘要 A multiplier array is modified to perform interpolations. The interpolations use a normalized first operand A between 0 and 1. The interpolation is the function B*A+C*(1-A). Standard multipliers accept two operands as inputs, bu t interpolations require 3 operands (A, B, C). The AND gates in Booth encoders (30) in a standard multiplier array are replaced by multiplexers. Each multiplexer selects a bit from one of the two operands (B or C) based on a b it of the first operand A. The interpolate operation multiplies the first opera nd A by the second operand B while simultaneously multiplying the bit-wise inverse of the first operand A' by the third operand C.
申请公布号 CA2272567(C) 申请公布日期 2002.10.01
申请号 CA19972272567 申请日期 1997.11.20
申请人 S3 INCORPORATED 发明人 BLOMGREN, JAMES S.
分类号 G06T15/00;G06F7/483;G06F7/53;G06F7/533;G06F7/544;G06F17/17;G06T3/40;(IPC1-7):G06F7/38;G06F7/52 主分类号 G06T15/00
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