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X86: Implement a locking version of BTC.

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This commit is contained in:
Gabe Black 2009-04-19 04:56:45 -07:00
parent e475cf85f0
commit 209cfc89fd
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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@ -154,6 +154,27 @@ def macroop BTC_P_I {
st t1, seg, riprel, disp
};
def macroop BTC_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,)
xor t1, t1, t4
stul t1, seg, sib, disp
};
def macroop BTC_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,)
xor t1, t1, t4
stul t1, seg, riprel, disp
};
def macroop BTC_R_R {
sext t0, reg, regm, flags=(CF,)
limm t1, 1
@ -186,6 +207,31 @@ def macroop BTC_P_R {
st t1, seg, [1, t2, t7], disp
};
def macroop BTC_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,)
xor t1, t1, t4
stul t1, seg, [scale, index, t3], disp
};
def macroop BTC_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, t2, t7], disp
sext t0, t1, reg, flags=(CF,)
xor t1, t1, t4
stul t1, seg, [1, t2, t7], disp
};
def macroop BTR_R_I {
sexti t0, reg, imm, flags=(CF,)
limm t1, "(uint64_t(-(2ULL)))"