Communications: electrical – Digital comparator systems
Patent
1975-09-08
1977-05-24
Thesz, Joseph M.
Communications: electrical
Digital comparator systems
G06F 900
Patent
active
040259048
ABSTRACT:
The invention relates to context switching wherein the memory address of the workspace of a problem program is stored in the memory workspace of an interrupt program. In a more specific aspect, workspace in memory stores a problem program workspace pointer, program counter contents and contents of a status register upon occurrence of an interrupt. The location of a workspace in main computer memory is referenced by the contents of a workspace pointer register. Upon occurrence of an interrupt, the contents of the register are stored in one element of a new workspace in main memory while referencing the new workspace by loading new contents into the workspace pointer register.
REFERENCES:
patent: 3643229 (1972-02-01), Stuebe et al.
patent: 3740722 (1973-06-01), Greenberg et al.
Adney Eugene M.
Thompson Michael E.
Devine Thomas G.
Grossman Rene' E
Levine Harold
Texas Instruments Incorporated
Thesz Joseph M.
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