Matches 101 - 126 out of 126 < 1 2 3
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4811266 Multifunction arithmetic indicator  
A multifunction arithmetic indicator that is associated with and controlled by an arithmetic logic unit (ALU) to store standard arithmetic indicator information such as overflow, carry, arithmetic...
4811211 On-line overflow response system and ALU branching structure  
A computer is sped up by reducing significantly the time necessary for the computer to detect and respond to an overflow following an ALU operation of a type which generates an overflow. This is...
4797652 Status register bit and delta  
A unique circuit that unambiguously provides an output status bit and an output delta bit in response to an input data signal. This circuit does not require the use of a one shot. The circuit...
4789956 Maximum negative number detector  
Prior to normalizing floating point number, a maximum negative number detector is employed. In order to determine whether a number is a maximum negative number, the inventive scheme examines the...
4788655 Condition code producing system  
A condition code producing system for an arithmetic unit which is controlled by a micro program and operate on binary floating point data produces a condition code having a plurality of bits and...
4683547 Special accumulate instruction for multiple floating point arithmetic units which use a putaway bus to enhance performance  
A data processing system includes a multiple floating point arithmetic unit with a putaway and a bypass bus, which includes a new instruction for handling multiple multiply or divide instructions....
4608660 Data processing system with condition data setting function  
A data processing system with a condition data setting function is provided. In the system, a microprogram memory designed stores a plurality of specific subtraction micro-instructions for...
4592008 Overflow detector for algebraic adders  
An MOS high-speed overflow detector for algebraic adders which add two binary numbers (a,b) in two's complement notation and contain one full adder per digit which provides a sum signal (s) and a...
4592005 Masked arithmetic logic unit  
An improved masked arithmetic logic unit is disclosed which incorporates at least three principle unique features to optimize implementation in a high speed environment. These features are (1) the...
4589087 Condition register architecture for a primitive instruction set machine  
A mechanism including an expanded condition register for use in a reduced instruction set computing system which facilitates the performance of single machine cycle instructions on the system and...
4580215 Associative array with five arithmetic paths  
An associative processor array including M rows and N columns of identical processing cells with each cell connected horizontally to its left and right to a neighboring cell. Each cell includes a...
4507731 Bidirectional data byte aligner  
A byte-addressable memory system having an array of transceivers with control logic which enables memory to be addressable on individual byte boundaries rather than on two byte (word) or four byte...
4460970 Digital data processing system using unique techniques for handling the leading digits and the signs of operands in arithmetic operations  
In a data processing system, an arithmetic logic means which determines the numbers of leading digits containing zero numeric values and the signs of operands supplied thereto and which discards...
4407018 Digital signal processor suited for LSI fabrication  
A digital signal processor is disclosed suited for LSI fabrication comprising a data input circuit for carrying out scaling on a plurality of serial data supplied through a first external terminal...
4323981 Central processing unit with improved ALU circuit control  
An information processor is provided with a plurality of ALU chips under control of a microprogram and an ALU control circuit for controlling the ALU chips. The ALU control circuit responds to data...
4291385 Calculator having merged key codes  
A hand-held, programmable, electronic calculator is capable of performing a larger number of functions than the number of keys on its keyboard and has one or more prefix keys to allow one function...
4238832 Time data processing apparatus  
A time data processing apparatus comprises a time-keeping memory for storing time data, a time-keeping circuit for renewing the time data read out from the time-keeping memory and writing the...
4202035 Modulo addressing apparatus for use in a microprocessor  
A microprocessor with a two bus structure and modulo addressing hardware which converts any section of main memory into an apparent circular address space for use as a five-fold data register. The...
4178633 Programmable calculator including multifunction keys  
An adaptable programmable calculator is provided by employing modular read-write and read-only memory units capable of being expanded to provide the calculator with additional program and data...
4161031 Programmable calculator including boolean flag variable means  
An adaptable programmable calculator is provided by employing modular read-write and read-only memory units capable of being expanded to provide the calculator with additional program and data...
4041461 Signal analyzer system  
A signal analyzer system is disclosed which includes an arithmetic processor containing a plurality of pipeline processor elements in parallel array with each element connected to a respective...
4037094 Multi-functional arithmetic and logical unit  
A computing system includes a central processor unit (CPU) in combination with external memory units. The CPU includes an arithmetic logic (ALU), an instruction register, a random access memory,...
3983382 Adder with fast detection of sum equal to zeroes or radix minus one  
Logic circuits in an adder for use in data processing for the detection of a sum of all ZEROES together with the mathematics upon which the circuits are based. Circuits and mathematics are also...
3789206 THRESHOLD LOGIC OVERFLOW DETECTOR FOR A THREE-INPUT ADDER  
A threshold logic overflow detector for a three-input adder is a combination of storage-processor elements and a pair of busses arranged so that three input-word sign-bits, a sum-word sign-bit, and...
3762637 DUAL-FUNCTION KEYS FOR SIGN CHANGE AND CORRECTION OF ERRONEOUS ENTRIES  
An electronic calculator of small size with a limited number of keys may include logic such that a second operation of a decimal point key during entry causes a sign change and/or such that...
2905383 Register zero test  
Matches 101 - 126 out of 126 < 1 2 3