Appeal No. 2003-1110
Application No. 09/295,439
struction; and
selectively issuing the first one of the first
plurality of instructions to one of the execution
units in response to the detected dependency being
cleared prior to an availability of a result from
said second instruction.
THE REFERENCE
Nguyen et al. (Nguyen) 5,832,292 Nov. 3, 1998
(effective filing date Jul. 8, 1991)
THE REJECTION
Claims 27-48 stand rejected under 35 U.S.C. § 102(e) as
being anticipated by Nguyen.
OPINION
We reverse the aforementioned rejection. We need to address
only the independent claims, i.e., claims 27 and 38.
Nguyen discloses a dependency checker unit (494) that
determines which pending instructions reference registers as the
destination for data, and which instructions, if any, are
dependent on any of those destination registers (col. 33,
lines 10-14). The dependency checker unit identifies the
instructions that have register dependencies by sending control
signals to a register rename unit (496) (col. 33, lines 14-16;
figure 5). The register rename unit provides an instruction
3
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007