Electrical computers and digital processing systems: processing – Processing control
Patent
1997-08-11
2000-04-04
Pan, Daniel H.
Electrical computers and digital processing systems: processing
Processing control
712 1, 712200, 712208, 712211, 712212, 712234, 712236, G06F 900
Patent
active
060473711
ABSTRACT:
To provide a signal processor for performing processing in fewer cycles by selecting one of the two different operations in accordance with a flag signal and performing the selected operation without the use of a conditional branch instruction, the signal processor is provided with an instruction decoder, a control selecting circuit, a selecting circuit and an arithmetic unit. The instruction decoder decodes an instruction to output two control signals. The control selecting circuit is connected to the instruction decoder and selects one of the control signals in accordance with a flag signal stored in a flag holding circuit to output the selected signal. The selecting circuit selects one of a plurality of input data in accordance with the control signal outputted by the control selecting circuit and outputs the selected data. The arithmetic unit performs an operation on the data outputted by the selecting circuit.
REFERENCES:
patent: 4992934 (1991-02-01), Portanova et al.
patent: 5014196 (1991-05-01), Hayashi et al.
patent: 5404557 (1995-04-01), Yamashita
patent: 5430852 (1995-07-01), Watanabe et al.
patent: 5522084 (1996-05-01), Ando
patent: 5581717 (1996-12-01), Boggs et al.
patent: 5606677 (1997-02-01), Balmer et al.
patent: 5696959 (1997-12-01), Guttag et al.
patent: 5710914 (1998-01-01), Verbauwhede et al.
patent: 5761470 (1998-06-01), Yoshida
Patent Abstracts of Japan, vol.008,No.286 (P-324), Dec. 27, 1984 & JP 59 148948A (Nippon Denki KK), Aug. 25, 1984.
Patent Abstracts of Japan, vol.006,No.112(P-124), Jun. 23, 1982 & JP 57 041741A (NEC Corp) Mar. 9, 1982.
"Renaming of an Instruction register field for speed improvement"IBM Technical Disclosure Bulletin, vol. 37, No.4B, Apr. 1, 1994, p. 589/590 XP000451363.
"Logic Circuit to Enhance the Function of an Arithmetic Logic Unit"IBM Technical Disclosure Bulletin, vol.31,No.9, Feb. 1989, p. 454 XP000046869 EPO Search Report dated Nov. 11, 1998.
Inoue Genichiro
Miyake Jiro
Urano Miki
Matsushita Electric - Industrial Co., Ltd.
Nguyen Dzung C.
Pan Daniel H.
LandOfFree
Signal processor for performing conditional operation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal processor for performing conditional operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processor for performing conditional operation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-374949