Method and apparatus for parallel conversion of color values from a single precision floating point format to an integer format
April 30, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesApparatus and method for converting floating point data formats in a microprocessor Method and apparatus for graphics data interpolation Floating point and integer number conversions in a floating point adder Method and apparatus for converting floating-point pixel values to byte pixel values by table lookup Data processor having capability to perform both floating point operations and memory access in response to a single instruction Method for pipeline processing of instructions by controlling access to a reorder buffer using a register file outside the reorder buffer 128-bit register file and 128-bit floating point load and store for quadruple precision compatibility Left and right justification of single precision mantissa in a double precision rounding unit Fast floating-point to integer conversion Methods and apparatus for table lookup transformation of digital images InventorsApplicationNo. 071468 filed on 04/30/1998US Classes:345/561, Logical operations345/505, Parallel processors (e.g., identical processors)345/559, Register345/600, Color bit data modification or conversion708/204, Format conversion708/495, Floating point712/222Floating point or vectorExaminersPrimary: Chauhan, Ulka J.Attorney, Agent or FirmInternational ClassesG06F 013/00G06F 015/80 AbstractA method and apparatus for parallel processing of graphics data are described. A number of color components are stored in a floating point format in at least one register of a set of 128-bit registers in a packed format. The color components in the floating point format are converted to numbers in an integer format. The numbers in the integer format are placed in at least one register of a set of 64-bit registers in the packed format. Color components are assembled for image pixels from the numbers in the integer format.Other References
Field of SearchCOMPUTER GRAPHIC PROCESSING SYSTEMPlural graphics processors Coprocessor (e.g., graphic accelerator) Master-slave processors Parallel processors (e.g., identical processors) Floating point Format conversion Parallel Pipeline Complex number format Logarithmic format Variable length or precision Arithmetic operation instruction processing Floating point or vector | |
