Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1997-05-02
1998-11-10
Lall, Parshotam S.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
345516, G06F 930, G06F 1206
Patent
active
058357939
ABSTRACT:
A data processing device uses a portion of a random access memory as an input buffer 114 for holding a portion of a stream of data which is being processed by a processing unit within the processing device. A Get Bit-Field instruction is provided which directs the processing unit to extract selected bit fields from the data stream stored in the input buffer. A register R6 holds a bit address which points to the end of a selected bit field, while a register R0 holds the width of the selected bit field. An address register is connected to a register R6 in a manner that allows data words to be accessed in input buffer 114 using only a word portion of the bit address. A funnel shifter 203 is disposed to extract the selected bit field from concatenated data words in response to a bit address portion of the bit address in register R6.
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Laczko, Sr. Frank L.
Li Stephen (Hsiao Yi)
Rowlands Jonathan
Donaldson Richard L.
Kesterson James C.
Lall Parshotam S.
Laws Gerald E.
Texas Instruments Incorporated
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