Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Patent
1997-06-23
1999-09-21
Kizou, Hassan
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
708209, G06F 738
Patent
active
059547863
ABSTRACT:
In the present invention, a method for directing parallel processing computing device to perform the operation of setting a signed value of N bits to an absolute value comprises the steps of: performing an arithmetic shift right of N-1 bit to form a bit mask; performing an exclusive-OR logical operation with the signed value of N bits and the bit mask to form a result; and subtracting the bit mask from the result of the exclusive-OR logical operation to form the absolute value of the signed value of N bits. Further, an apparatus for parallel processing a signed value to form an absolute value comprises: means for performing an arithmetic shift right of N-1 bit to form a bit mask; means for performing an exclusive-OR logical operation with the signed value of N bits and the bit mask to form a result; and means for subtracting the bit mask from the result of the exclusive-OR logical operation to form the absolute value of the signed value of N bits.
REFERENCES:
patent: 5075879 (1991-12-01), Anderson
patent: 5146419 (1992-09-01), Miyoshi
patent: 5148386 (1992-09-01), Hori
patent: 5216628 (1993-06-01), Mizutani et al.
patent: 5303174 (1994-04-01), Okamoto
patent: 5497340 (1996-03-01), Uramoto et al.
patent: 5533185 (1996-07-01), Lentz et al.
patent: 5539685 (1996-07-01), Otaguro
Sun Microsystems "The UltraSPARC Processor--Technology White Paper; The UltraSPARC Architecture" Nov. 14, 1995.
Kizou Hassan
Lee Douglas S.
Sun Microsystems Inc.
LandOfFree
Method for directing a parallel processing computing device to f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for directing a parallel processing computing device to f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for directing a parallel processing computing device to f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-75713