Electrical computers and digital processing systems: processing – Processing control – Generating next microinstruction address
Patent
1999-05-26
2000-03-14
Eng, David Y.
Electrical computers and digital processing systems: processing
Processing control
Generating next microinstruction address
G06F 932
Patent
active
060386606
ABSTRACT:
A method and apparatus for providing a program counter value within a central processing unit is described. A program counter value comprises n bits and has to be increased by one of a plurality of different fixed increment values. Therefore, an upper partial content of the current program counter value and its value incremented by 1 is provided. Also, a plurality of lower partial contents of the current program counter value incremented by one of the plurality of fixed increment values, respectively are provided, whereby a carry bit is provided. One of the plurality of incremented lower partial contents is selected depending on said respective carry bit. Upper and lower contents are then combined to form a plurality of new program counter values. Upon receiving of control information to select a final increment value one of said new program counter values will be selected.
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patent: 5410721 (1995-04-01), Divine et al.
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patent: 5559975 (1996-09-01), Christie et al.
patent: 5799162 (1998-08-01), Christie et al.
Grubert Andreas
Lemay Danielle G.
Mattela Venkat
Park Heonchul
Singh Balraj
Eng David Y.
Infineon Technologies North America Corp.
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