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X86: Implement a locking version of BTS.

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This commit is contained in:
Gabe Black 2009-04-19 04:56:36 -07:00
parent 985d959ea6
commit b493906eb9
1 changed files with 46 additions and 0 deletions
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46
src/arch/x86/isa/insts/general_purpose/compare_and_test/bit_test.py
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@ -274,6 +274,27 @@ def macroop BTS_P_I {
st t1, seg, riprel, disp
};
def macroop BTS_LOCKED_M_I {
limm t1, imm, dataSize=asz
limm t4, 1
roli t4, t4, imm
ldstl t1, seg, sib, disp
sexti t0, t1, imm, flags=(CF,)
or t1, t1, t4
stul t1, seg, sib, disp
};
def macroop BTS_LOCKED_P_I {
rdip t7, dataSize=asz
limm t1, imm, dataSize=asz
limm t4, 1
roli t4, t4, imm
ldstl t1, seg, riprel, disp
sexti t0, t1, imm, flags=(CF,)
or t1, t1, t4
stul t1, seg, riprel, disp
};
def macroop BTS_R_R {
sext t0, reg, regm, flags=(CF,)
limm t1, 1
@ -305,4 +326,29 @@ def macroop BTS_P_R {
or t1, t1, t4
st t1, seg, [1, t3, t7], disp
};
def macroop BTS_LOCKED_M_R {
srai t2, reg, 3, dataSize=asz
srai t3, t2, ldsz, dataSize=asz
lea t3, flatseg, [dsz, t3, base], dataSize=asz
limm t4, 1
rol t4, t4, reg
ldstl t1, seg, [scale, index, t3], disp
sext t0, t1, reg, flags=(CF,)
or t1, t1, t4
stul t1, seg, [scale, index, t3], disp
};
def macroop BTS_LOCKED_P_R {
rdip t7, dataSize=asz
srai t2, reg, 3, dataSize=asz
srai t3, t2, ldsz, dataSize=asz
lea t3, flatseg, [dsz, t3, base], dataSize=asz
limm t4, 1
rol t4, t4, reg
ldstl t1, seg, [1, t3, t7], disp
sext t0, t1, reg, flags=(CF,)
or t1, t1, t4
stul t1, seg, [1, t3, t7], disp
};
'''