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X86: Implement a locking version of XADD.

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Gabe Black 2009-04-19 04:56:49 -07:00
parent 209cfc89fd
commit 61edc9ba66
1 changed files with 15 additions and 0 deletions
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15
src/arch/x86/isa/insts/general_purpose/semaphores.py
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@ -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