Boots – shoes – and leggings
Patent
1982-09-29
1985-01-22
Zache, Raulfe B.
Boots, shoes, and leggings
G06F 700
Patent
active
044955987
ABSTRACT:
The rotate function of this invention involves cyclic shifts of 1 to 4 byte data by an amount of 0, 1, 2, or 3 bytes either to the left or to the right. Only one CPU firmware clock cycle is required regardless of the shift amount. This shifting is done either on data which is transferred from computer memory or on data prior to its transfer into computer memory. Firmware-controlled hardware shifts the bytes in the data field in response to information provided concerning the location of the most significant byte in memory relative to the boundaries of the data word and the length of the data word. The firmware can also directly specify the amount of the shift.
REFERENCES:
patent: 3790960 (1974-02-01), Amdahl et al.
Keats Dennis R.
Lee Peter T.
Vahlstrom Richard
Cone Gregory A.
Finch George W.
McDonnell Douglas Corporation
Royer Donald L.
Zache Raulfe B.
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