Method of transferring data between moderately coupled integer a

Details Method of transferring data between moderately coupled integer a Method of transferring data between moderately coupled integer a

1995-11-28

1998-12-08

Bowler, Alyssa H.

Boots, shoes, and leggings

364748, G06F 1516

Patent

active

058482849

ABSTRACT:
A moderately coupled floating point and integer units of a processor allows for rapid transfer of data between the two units. The integer unit is comprised of a plurality of integer registers arranged into an integer register file and coupled to one or more integer execution units. Similarly, the floating point unit is comprised of a plurality of floating point registers arranged into a floating point register file and coupled to one or more floating point execution units. The two units operate as separate units except for the data transfer between them on a transfer bus. The transfer bus is the only direct data link between the two register files. Multiplexers are used to control the bit transfer between the two register files so that all or some of the bits of a register are transferred to a receiving register. Furthermore, the data transfer scheme allows for both numeric and Booleans to be transferred and compounding of Booleans can be performed in either numeric unit.

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IEEE Standard for Binary Floating-Point Arithmetic (ANSI/IEEE Std 754-1985).
IEEE Standard for Radix-Independent Floating-Point Arithmetic (ANSI/IEEE Std 854-1987).
MC88110 Second Generation RISC Microprocessor User's Manual; Motorola Inc., 1991.

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