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authorAndreas Sandberg <andreas@sandberg.pp.se>2013-06-18 16:30:06 +0200
committerAndreas Sandberg <andreas@sandberg.pp.se>2013-06-18 16:30:06 +0200
commita8e8c4f433fb3cce354950ba72136b84abb78015 (patch)
treec1b93c2399e0474da011b9aaaa324d4bd14b919e /src/cpu/cpuevent.hh
parentc9c02efb99c0a982c116c7d1d8ed9a984c174198 (diff)
downloadgem5-a8e8c4f433fb3cce354950ba72136b84abb78015.tar.xz
x86: Fix loading of floating point constants
This changeset actually fixes two issues: * The lfpimm instruction didn't work correctly when applied to a floating point constant (it did work for integers containing the bit string representation of a constant) since it used reinterpret_cast to convert a double to a uint64_t. This caused a compilation error, at least, in gcc 4.6.3. * The instructions loading floating point constants in the x87 processor didn't work correctly since they just stored a truncated integer instead of a double in the floating point register. This changeset fixes the old microcode by using lfpimm instruction instead of the limm instructions.
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