Selectable processing registers and method

Details Selectable processing registers and method Selectable processing registers and method

1996-10-31

1998-04-07

Geckil, Mehmet B.

395568, G06F 900

Patent

active

057376255

ABSTRACT:
A data processing system employing registers for holding data to be processed is described. The registers are grouped into sets of registers 2. A register selecting instruction word controls selection of a particular ones of the registers from within the sets of registers 2 to be available for data processing. The register selecting instruction word includes control fields for each set of registers, the bits of each control field specifying a register swap within the a respective set of register. The new register to be selected is derived from an exclusive OR operation performed upon a currently selected register identification word and the control field for that set of registers.

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