Guard bits in a VLIW instruction control routing of operations t

Details Guard bits in a VLIW instruction control routing of operations t Guard bits in a VLIW instruction control routing of operations t

1997-12-29

1999-10-26

Vu, Viet D.

Electrical computers and digital processing systems: processing

Instruction issuing

Simultaneous issuance of multiple instructions

712 24, G06F 938

Patent

active

059745371

ABSTRACT:
A very long instruction word (VLIW) architecture describes a processor comprising multiple functional units operating in parallel. A very long instruction word contains a plurality of fields or issue slots for specifying which operations are to be performed by the functional units. Execution of an operation can be inhibited by a guard value specified in the issue slot. Instructions are dispatched in such a guarded VLIW architecture by routing one of a plurality of fields issued for a common functional unit based on the guard value. Thus, an instruction word may contain a greater number of issue slots than there are functional units.

REFERENCES:
patent: 5333280 (1994-07-01), Ishikawa
patent: 5442760 (1995-08-01), Rustad et al.
patent: 5450556 (1995-09-01), Slavenburg et al.
patent: 5560028 (1996-09-01), Sachs et al.
patent: 5600810 (1997-02-01), Ohkami
patent: 5774737 (1998-06-01), Nakano
IEEE Comput. Soc. Press, "An Evaluation of the iHARP Multiple Instruction Issue Processor", Fleur L. Steven et al, pp. 437-444, 1994.
John R. Ellis, "Bulldog: A Cpmplier for VLIW Architectures", MIT Press 1985, ISBN 0-262-05034-X.
P. Y-T. Hsu, "Highly Concurrent Scalar Processing," Thesis, Univ. of Illinois at Urbana-Champaign, 1986.

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