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authorAnthony Gutierrez <atgutier@umich.edu>2013-11-15 13:21:15 -0500
committerAnthony Gutierrez <atgutier@umich.edu>2013-11-15 13:21:15 -0500
commit8a53da22c2f07aed924a45ab296f7468d842d7f6 (patch)
tree14f1df0a4b3aa217840384e3dee2ce53270e570d /src/sim/root.cc
parentf028da7af7792bec226372ef23c1d103ad68ad30 (diff)
downloadgem5-8a53da22c2f07aed924a45ab296f7468d842d7f6.tar.xz
cpu: allow the fetch buffer to be smaller than a cache line
the current implementation of the fetch buffer in the o3 cpu is only allowed to be the size of a cache line. some architectures, e.g., ARM, have fetch buffers smaller than a cache line, see slide 22 at: http://www.arm.com/files/pdf/at-exploring_the_design_of_the_cortex-a15.pdf this patch allows the fetch buffer to be set to values smaller than a cache line.
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