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| author | Gabe Black <gblack@eecs.umich.edu> | 2009-04-19 04:56:49 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2009-04-19 04:56:49 -0700 |
| commit | 61edc9ba66f4ce42c7cc4aab0f26d060470cdb14 (patch) | |
| tree | 858b4cdda29b3202405d7683e451c0cf1f30b572 /src/arch/x86/isa/insts/general_purpose | |
| parent | 209cfc89fdf7dc8775c2b1d0870d6610bae5ed21 (diff) | |
| download | gem5-61edc9ba66f4ce42c7cc4aab0f26d060470cdb14.tar.xz | |
X86: Implement a locking version of XADD.
Diffstat (limited to 'src/arch/x86/isa/insts/general_purpose')
| -rw-r--r-- | src/arch/x86/isa/insts/general_purpose/semaphores.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/semaphores.py b/src/arch/x86/isa/insts/general_purpose/semaphores.py index a34e2a3c7..a7da0720e 100644 --- a/src/arch/x86/isa/insts/general_purpose/semaphores.py +++ b/src/arch/x86/isa/insts/general_purpose/semaphores.py @@ -113,6 +113,21 @@ def macroop XADD_P_R { mov reg, reg, t1 }; +def macroop XADD_LOCKED_M_R { + ldstl t1, seg, sib, disp + add t2, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) + stul t2, seg, sib, disp + mov reg, reg, t1 +}; + +def macroop XADD_LOCKED_P_R { + rdip t7 + ldstl t1, seg, riprel, disp + add t2, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) + stul t2, seg, riprel, disp + mov reg, reg, t1 +}; + def macroop XADD_R_R { add t2, regm, reg, flags=(OF,SF,ZF,AF,PF,CF) mov regm, regm, reg |