Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2007-06-26
2007-06-26
Mai, Tan V. (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
Reexamination Certificate
active
10329765
ABSTRACT:
A data processing apparatus and method for converting a number between fixed-point and floating-point representations. More particularly, the data processing apparatus includes a data processing unit operable to execute instructions, with the data processing unit being responsive to a format conversion instruction to apply a format conversion operation to a number to perform a conversion between the fixed-point representation of the number and the floating-point representation of the number. Furthermore, a control field is provided which is arranged to provide a programmable value specifying a decimal point location within the fixed-point representation of the number, and the data processing unit is operable to reference the control field and to control the formal conversion operation in accordance with the programmable value. This enables a single instruction to be used to directly convert between fixed-point formats (where the position of the decimal point may be programmable varied) and floating-point representations.
REFERENCES:
patent: 3930232 (1975-12-01), Wallach et al.
patent: 3961170 (1976-06-01), De Sandre et al.
patent: 4511990 (1985-04-01), Hagiwara et al.
patent: 4631696 (1986-12-01), Sakamoto
patent: 4805128 (1989-02-01), Nelsen et al.
patent: 6028893 (2000-02-01), Schreib
patent: 6049343 (2000-04-01), Abe et al.
patent: 6144977 (2000-11-01), Giangarra et al.
patent: 6510446 (2003-01-01), Fukagawa
patent: 6606097 (2003-08-01), Fossum
patent: 6671796 (2003-12-01), Sudharsanan et al.
patent: 2 149 162 (1985-06-01), None
patent: WO 96/27831 (1996-09-01), None
ARM Limited
Mai Tan V.
Nixon & Vanderhye P.C.
LandOfFree
Data processing apparatus and method for converting a number... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data processing apparatus and method for converting a number..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data processing apparatus and method for converting a number... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3870130