Method and apparatus for clearing the memory of a video computer
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United States of America Patent
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-
Jan 19, 1988
Grant Date -
N/A
app pub date -
Dec 30, 1983
filing date -
Dec 30, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a video computer system and the like having a bit-mapped RAM component including a shift register, an improved method is provided for rapidly clearing the RAM in order to prepare the system to receive new input data. More particularly, a preselected number of predetermined data bits corresponding to the number of columns in the RAM is serially shifted into the register. Thereafter, the contents of the shift register are progressively shifted into each of the rows in the RAM until all rows are filled.
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