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X86: Implement a locking version of XCHG.

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This commit is contained in:
Gabe Black 2009-04-19 04:56:22 -07:00
parent 750f5a0a67
commit b8f81c62a2
1 changed files with 15 additions and 0 deletions
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15
src/arch/x86/isa/insts/general_purpose/data_transfer/xchg.py
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@ -95,4 +95,19 @@ def macroop XCHG_P_R
st reg, seg, riprel, disp st reg, seg, riprel, disp
mov reg, reg, t1 mov reg, reg, t1
}; };
def macroop XCHG_LOCKED_M_R
{
ldstl t1, seg, sib, disp
stul reg, seg, sib, disp
mov reg, reg, t1
};
def macroop XCHG_LOCKED_P_R
{
rdip t7
ldstl t1, seg, riprel, disp
stul reg, seg, riprel, disp
mov reg, reg, t1
};
''' '''