Boots – shoes – and leggings
Patent
1980-10-20
1983-06-28
Thomas, James D.
Boots, shoes, and leggings
365230, G06F 922, G06F 928, G06F 938, G06F 942
Patent
active
043909469
ABSTRACT:
The microinstructions controlling a pipeline processor are held in a control store that is partitioned into two microcode memory banks. The invention can support three modes of sequencing; single microinstruction, sequential multiple microinstructions, and multiple microinstructions with conditional branching. When a conditional branch is performed, the branch not taken path is assumed and if true, the microinstruction following the branch is executed with no delay. If the branch is taken, the guess is purged and following a one clock delay, the branched to microinstruction is executed. The invention supports these sequencing modes at the maximum pipeline rate, since the only logic between registers is the memory chips.
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Control Data Corporation
Genovese Joseph A.
McGinnis William J.
Thomas James D.
Williams Jr. Archie E.
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